The mission of Boston Whaler is to
provide consumers with the
safest, highest quality, most durable
boats in the world
INFORMATION IN THIS PUBLICATION IS BASED ON THE LATEST PRODUCT SPECIFICATIONS AVAILABLE AT PRINTING, BOSTON WHALER® BOATS, INC. RESERVES THE RIGHT
TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE, IN THE COLORS, EQUIPMENT, SPECIFICATIONS, MATERIALS AND PRICES OF ALL MODELS, OR TO DISCONTINUE MODELS.
SHOULD CHANGES OR MODIFICATIONS TO THE MODELS BE MADE BOSTON WHALER® IS NOT OBLIGATED TO MAKE SIMILAR CHANGES OR MODIFICATIONS TO MODELS
SOLD PRIOR TO THE DATE OF SUCH CHANGES. THE FOLLOWING ARE REGISTERED TRADEMARKS OF THE BRUNSWICK CORPORATION:
170 MONTAUK, BOSTON WHALER®. MRP #1689606
Revision D 2/12/04
Boston Whaler founder Rich-
ard T. Fisher demonstrating one
of the features that has made
Boston Whaler the “Unsinkable
Legend” in this 1961 LIFE
Magazine Photo.
Richard T. Fisher was posthu-
mously inducted into the Na-
tional Marine Manufacturer ’s
Association (NMMA) Hall of
Fame on September 26, 1996
for accomplishments made in
marine engineering and con-
struction.
History
In 1958, company founder Richard T. Fisher introduced the first Boston Whaler boat in Braintree,
Massachussetts. It featured two significant innovations: first, its twin sponson hull design produced
superior stability and a remarkably dry ride; second, its unique foam core construction made the boat
not only durable, but unsinkable as well.
Fisher took every opportunity to illustrate the unique characteristics of the Boston Whaler. His most
famous demonstration was captured in 1961, by Life Magazine. The series of photographs showed the
boat underway, the boat being sawed in half and ultimately Fisher motoring away in the remaining half
of the boat. And through the years many other demonstrations have proved the toughness and durability
of the Boston Whaler hull. And though you may never cut your boat in half, this only goes to show one
thing, people whose livelihood and lives depend on boats consistently choose Boston Whaler because
of their seaworthiness, dependablility and the inherent safety of a hull that wont sink even if severely
damaged.
Boston Whalers are built to last. For over 40 years Boston Whaler® has strived to make each model
better, providing you with a safe and fun boating experience. That is the reason we offer a 10 year
limited transferable warranty. It is also an excellent reason why you can trust the safety of your family
and friends to a Boston Whaler.
PLEASE KEEP THIS OWNERS MANUAL PACKET IN A SECURE PLACE, AND BE SURE TO HAND IT
OVER TO THE NEW OWNER IF YOU SELL THE BOAT.
Section 1 - 170 Montauk
Table of Contents
Section 6 - Propulsion System
Propeller Information 16
Propeller Assembly Diagram 16
Gear Shift/Throttle Control 17
Power Trim Operation 17
Steering Information 18
Maintenance 18
Steering Pull 18
Section 7 - Getting to know your Boston Whaler
Mooring Points 19
Lifting 19
Hull Maintenance 20
Blisters 20
Bottom Painting 21
Painted Hull Care(Bottom) 21
Vinyl Cushion Care 21
Long Term Storage 22
Engine 22
Fuel System 22
Trailer Storage 22
Electrical System 22
Drainage 22
Canvas Care & Maintenance 23
Trailer 24
Care & Maintenance 24
Trailer Safety 24
Bunk Trailer Terminology 24
Section 8 - Anchoring Information
Anchoring Information 25
Lowering 25
Setting 25
Weighing 25
Section 9 - Maintenance Log & Notes
Maintenance Log 26
Notes 26
170 Montauk - Owners Manual
Section 1 - 170 Montauk
Introduction 1
Table of Contents 1
Construction Standards 2
Our Hull 2
Servicing your Boston Whaler 2
Hull Identification Number 2
Section 2 - General Arrangement
& Specifications
Specifications & Dimensions 3
Standard Features 4
Optional Features 5
Standard & Optional Seating 6
Through Hull Locations 6
Label Location 7
Deck Occupancy 7
Trolling Motor Reinforcment Location 8
Section 3 - Fuel System
Fuel System 8
170 Montauk Fuel System Diagram 9
Static Electricity and the Fuel System 9-10
Section 4 - Electrical System
Electrical System 11
Battery Information 11
Battery Maintenance 11
Ignition Shutdown Switch 11
Electrical Diagram 12
CE Certification Battery Switch
Diagram 12
Instrument Panel, Blank 13
Instrument Panel, Pre-Rig 13
12 Volt Accessory Receptacle 14
Navigation Lighting 14
Section 5 - Bilge System
Bilge Pump 15
Operation/Maintenance 15
Bilge Diagram 15
This Owners Manual has been written to provide specific information about your boat and it should be read carefully.
Keep this booklet with the Owners Manual in the Owners Manual Packet.
The Owners Manual Packet has been compiled to help you operate your boat with safety and pleasure. It contains
details of the boat, the equipment supplied or fitted, its systems and information on its operation and maintenance.
Please familiarize yourself with the boat and its operation before using it.
If this is your first boat, or you are changing to a type of boat you are not familiar with, for your own comfort and
safety, please ensure that you obtain handling and operating experience before assuming command of your boat.
Your Boston Whaler® dealer or local Yacht Club will be pleased to advise you of marine safety classes and safe
boating classes in your area.
Introduction
1
Section 1 - 170 Montauk
170 Montauk - Owners Manual
Hull Identifcation Number
The Hull Identification Number is located on the
starboard side of the transom wall.
This is the most important identifying factor and must
be included in all correspondence related to your ves-
sel. Failure to do so will only create delays. Also of
vital importance are the engine serial numbers and
part numbers when writing about or ordering parts
for your engine.
Our Hull
Boston Whaler® hulls are constructed with our pat-
ented Unibond construction. This involves shoot-
ing high density foam into a closed mold system.
The foam expands to fill voids in the hull, and when
the finished product is pulled from the mold, the deck
and the hull are chemically bonded to form a solid,
inseparable unit.
2
3
4
1
THE MISSION OF BOSTON WHALER IS TO PROVIDE CONSUMERS WITH THE
SAFEST, HIGHEST QUALITY, MOST DURABLE BOATS IN THE WORLD.
We are dedicated to creating a superior product providing you with comfort, performance, safety and dependability.
All of our boats comply with the safety standards set by the United States Coast Guard and are designed, engineered
and manufactured in accordance with applicable recommendations and guidelines of the American Boat and Yacht
Council (A.B.Y.C.) and certified by the National Marine Manufacturers Association (N.M.M.A.).
Construction Standards
1 No air voids
2 High density closed cell non-absorbent foam
3 High quality resins and gelcoats
4 Woven glass matting
2
Hull
Identification
Number
When your 170 Montauk needs to be serviced or
regular maintenance is needed, it should be taken to
an authorized Boston Whaler® dealer.
To find a Boston Whaler® dealer in your area call:
1-800-942-5379
Domestic/International
If a problem is not handled to your satisfaction:
Discuss any warranty related problems directly
with the service manager of the dealership or your
sales person. Give the dealership an opportunity
to help the service department resolve the matter
for you.
Servicing your Boston Whaler
Typical H.I.N. Description
Section 2 - General Arrangement & Specifications
170 Montauk-Owners Manual
Overall Length 170 5.18 m
Trailerable Length 202 6.15 m
Bridge Clearance 611 2.11 m
Bridge Clearance
(no top)
47 1.40 m
Beam 610 2.08 m
Draft, (Hull Only) 9 .23 m
Weight (dry, no engine) 1400 lbs. 635 kg
Swamped Capacity 3400 lbs. 1542 kg
Maximum Engine Weight 410 lbs. 185 kg
Maximum Weight , (passengers,
engine(s), gear),** 1650 lbs 748.3 kg
Persons 7
Maximum Horsepower 90HP 67.1 kw
Minimum Horsepower 60 HP 44.7 kw
Fuel Capacity(portable) 13.2 gal.
(U.S.)
49.96 L
* Waterline
*** Engine Draft,(See Notice)
Specifications & Dimensions
3
170
202
610
611
9
47
*
**
The canvas shown here
is for reference only.
Specified measurements are approximations and are
subject to variance.
NOTICE
!
NOTICE
!
Optional equipment and loading of the boat will af-
fect the draft measurements. Follow the recommen-
dations listed on your capacity plate regarding the
maximum amount of weight the boat can safely
carry.
***
Exceeding this weight will affect the bost’ s perfor-
mance. DO NOT Exceed the weights listed on the
capacity plate.
NOTICE
!
**
Section 2 - General Arrangement & Specifications4
170 Montauk - Owners Manual
Standard Features
1 Bow Chock/Navigation Light
2 8 Cleat, Stainless Steel
3 Heavy Duty Rubrail
4 Stainless Steel Bow Rail
5 Foward Lifting Eye
6 Anchor Locker
7 Console Grab rail, Stainless Steel
8 Acrylic Windshield
9 Navigation Light Base
10 Instrument Panel
11 Console Access Door w/ Storage Bin
12 Stainless Steel Steering Wheel
13 Gear Shift/Throttle Control
14 Console Cupholders, (2)
15 Reversible Pilot Seat Backrest
16 Reversible Pilot Seat Cushion
17 Reversible Pilot Seat Base
18 2-6.6 Gal. (49.96L) Fuel Tanks, (Portable)
19 Galvenized trailer
20 Motorwell Drain, (2)
21 Stern Lifting Eye, Port/Starboard
22 Engine
23 Access Plate
24 Sump Cover/Bilge Pump Access
25 Stainless Steel Side Rail
26 Electric Horn
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
21
22
23
24
19
25
26
Section 2 - General Arrangement & Specifications 5
170 Montauk - Owners Manual
1 Blue graphics, striping and logos
2 Telescoping ladder and swim platform
3 60 ELPT 4-stroke Mercury engine
4 90 ELPT 4-stroke Mercury engine
5 Bow cushion
6 72 Qt. (68.1L) Cooler seat w/ cushion and
backrest
Fishing Package
7 Compass
8 72 Qt. (68.1L) Cooler seat w/ cushion backrest
and 4 rodholders
9 Tackle drawers
Canvas
10 Canvas sun-top (Red or Blue) with stainless steel
fittings and boot.
11 Forward Support Pole 2
12 Aft Support Strap
13 Main Support Pole
14 Center Support Pole
15 Forward Support Pole 1
16 Sun-top Slide Track Base
* Also part of the Fishing Package
Optional Features
1
2
3
4
9
7
8
65
10
1112
13
14 15
16
*
Section 2 - General Arrangement & Specifications6
170 Montauk - Owners Manual
Through Hull Locations
Standard & Optional Seating
Arrangements
1 Anchor Locker Drain
2 Bilge Sump Drain
3 Bilge Pump Outlet
4 Motorwell Drain, (2)
1
2
3
1
2
3
4
2A
STANDARD
1 Reversible Pilot Seat w/ Locking Backrest
OPTIONAL
2 72 Qt. (68.1L) Cooler Seat w/ Backrest
2ABackrest with 4 rodholders not shown
3 Bow Cushion
The deck drain provides self-bailing capabilities while
the boat is static in the water and no passengers on
board. This feature prevents the accumulation of wa-
ter in the cockpit. the drain must be in place when un-
derway.
NOTICE
!
Depending on the type of boat you have, you may
have underwater fittings that need drain plugs.
Garboard drain plugs and fishbox drain plugs need
to be in place before the boat goes into the water.
Any fitting that will be underwater needs to be
plugged or the seacock needs to be closed
NOTICE
!
An inspection of the through hull fittings is recom-
mended. Through hull fittings should be checked
for proper seal annually and repaired as required.
When the boat is in the water the underwater fit-
tings can be checked for dripping. It is recom-
mended that the underwater fittings be removed,
cleaned and resealed every other year.
NOTICE
!
If the through hull fittings need to be replaced, it is
recommended that an authorized Boston Whaler ®
dealer perform this type of repair. Through hull fit-
tings that are improperly installed can cause pre-
mature hull failure and may void the Boston
Whaler® limited warranty.
NOTICE
!
Section 2 - General Arrangement & Specifications 7
170 Montauk - Owners Manual
Accommodation deck:
This area of the boat
is inside the cockpit
and includes helm
seating. Movement in
this area should be done with extreme cau-
tion while the boat is underway. A sudden
shift in boat direction can cause a loss of
balance and lead to injury or death.
Working deck:
This area is intended
for occupation ONLY
while mooring, an-
choring, loading/un-
loading or when the boat is at rest. NEVER
operate the engine while loading or un-
loading swimmers/divers from the swim
platform/ladder.
Be aware of your footing while the boat is under-
w a y, slipping or falling could result in serious in-
jury or death, especially if the boat is in motion or
in rough seas. Keep the accommodation deck
clean, so if movement is neccessary it will be free
of obstruction.
DANGER
!
Gelcoat surfaces are slippery when wet.Use
extreme caution when walking on wet surfaces.
Use care when waxing to ensure that walkways
are not made dangerously slippery.
WARNING
!
Deck
Occupancy
Plan
Never occupy the working decks while the boat
is underway. ONLY sit in areas that are desig-
nated for sitting. NEVER sit on the gunwales
while the boat is moving.
WARNING
!
Label Location
Section 3 - Fuel System8
170 Montauk - Owners Manual
The 170 Montauk has provisions for
a gasoline fuel system. There is a sec-
tion under the reversible pilot seat that
will hold a pair of 6.6 Gal.(25 L) re-
movable fuel tanks. Straps are used to
secure the tanks to the deck. There is a rigging tube
under the deck for running the fuel line to the en-
gine. It is recommended that you follow all instruc-
tions regarding the filling and transporting of the re-
movable fuel tanks.
Please take time to read and understand all the fuel
related information and warnings in the engine
owners packet.
Fuel System
CAUTION
!
Leaking fuel is a fire and explosion hazard, inspect the
system regularly. Examine fuel tanks and exposed lines
for leaks and corrosion.
DANGER
!
Check for leaks in tubing, connections and hoses. Cor-
rect the cause of the leaks and ventilate the area to
insure that no fumes remain, prior to energizing any
electrical equipment and/or starting the engines.
CAUTION
!
Use of improper gasolines can damage your engine se-
riously. Engine damage resulting from use of improper
gasoline is considered misuse of engine and will void
the warranty. Follow engine manufacturer ’s recommen-
dations regarding the types of fuel and oil to use.
CAUTION
!
Oil and fuel spills can be dangerous and can subject
offenders to severe penalties
NOTICE
!
Remove portable tanks from boat and fill from shore.
When fueling is complete, secure tanks to deck with
straps provided.
DANGER
!
Static electricity can ignite gasoline vapors causing
serious injury/death and/or destruction of property.
NOTICE
!
Fuel tanks should never be filled to capacity, allow 2%
for expansion.
Trolling Motor Reinforcment Loca-
tion
The 170 Montauk has reinforced areas of the bow
that will make it easier to mount a trolling motor.
The reinforced sections are located on either side of
the bow navigation lights and extend back along the
gunwale. The phenolic material can be drilled and
tapped to hold machine screws. In some instances
the trolling motor will not be compatible with the
optional bow rail. See your Boston Whaler® dealer
regarding this. The exact location of the phenolic can
be found in the REINF. LOCATION DIAGRAM
in your owners manual packet. Please refer to this
document before drilling into the deck of your boat.
Distance from the deck to waterline, (for determining
the correct shaft length of the trolling motor.)
Trolling Motor,
(Reference ONLY)
Reinforced Deck sections
Section 4 - Electrical System 9
170 Montauk - Owners Manual
There is a danger that static electricity can ignite gaso-
line vapors that have not been ventilated outside an
enclosed area. Use extreme caution when fueling
your boat from a source outside the regular venues,
(e.g. marinas, fuel service stations.)
Your boat has safety features that can be circum-
vented by not adhering to standard fueling practices.
Your boats bonding system protects it from creating
and discharging static electricity.
Your boat must be in contact with the water or a land
based grounding system. Here are some helpful sug-
gestions to keep you safe from static electricity while
refueling your boat.
NEVER fuel your boat in unsafe conditions such
as: suspended on a sling or in a situation that in-
creases the liklihood of static discharge.
NEVER use homemade containers to fill your fuel
tanks.
Fuel carried on-board outside of a fixed fuel sys-
tem should be stored in an approved container or
in a portable tank such as provided for outboard
engines and be stowed safely outside of the engine
or living compartment(s).
Shut down the engine(s), motors and fans prior to
taking on fuel. Any ignition sources should be ex-
tinguished before filling the fuel tank(s).
Close all ports, windows, doors and hatches.
Fueling should never be done at night except in
well-lighted areas.
Always keep the fuel nozzle in contact with the
fuel fill plate or the edge of the fuel tank opening
throughout the filling process.
Allow areas where gasoline vapors could collect
to be ventilated before starting the engine(s).
Wipe any spillage completely and dispose of rags
or waste on shore.
Secure the fill cap tightly.
Static Electricity and the Fuel System
1 6.6 Gal, (25L) portable fuel tank,(2)
2 Fuel tank strap
3 Primer bulb
4 Rigging tube, (in hull)
5 Fuel line from tank(s)
6 Fuel line tank connection port
7 Fuel tank level gauge
8 Fuel tank vent
9 Fuel tank fill
170 Montauk Fuel System
2
3
1
4
5
Removable
Fuel Tank
6
7
8
9
To engine
connection
Make sure the
fuel tank is
secured to the
deck like this:
Section 4 - Electrical System10
170 Montauk - Owners Manual
Electrical System
CAUTION
!
Never reset a breaker without first determining and
correcting the cause of the trip. Should a circuit re-
peatedly trip, have a qualified electrician determine
and correct the cause.
Never use an open flame in the battery storage area.
A void striking sparks near the battery
A battery will explode if a flame or spark ignites the
free hydrogen given off during charging.
The battery should always be disconnected before
doing any work or maintenance on the electrical
system.
CAUTION
!
If equipped with a battery switch, you will need to
stop the engine before moving the switch to the “OFF”
position.
CAUTION
!
Batteries contain sulfuric acid which is dangerous and
can cause serious injury.AVOID contact with skin,
eyes and clothing. If contact occurs, immediately flush
the af fected area with large quantities of water and
call for medical assistance
DANGER
!
Always store the battery in the the battery box. Use
the straps and clamp to keep the box secure while
underway.
NOTICE
!
Battery Information
Your 170 Montauk is equipped with
an electrical system that provides
power for the following:
Engine ignition
Engine tilt trim system
Helm switch panel & helm instrument panel
Lighting/Navigation system
Livewell system, (optional)
Add-on accessories and electronics
The battery box is located inside the console on the
starboard side. Your battery should always be en-
closed in the battery box provided with your boat.
The box will contain any spilled acid, as well as pro-
tect the battery terminals from damage or inadvertant
shorting from contact with metal objects.
Fuel tanks should never be filled to capacity. al-
low 2% for expansion.
Portable tanks should only be filled while on the
ground; never on-board the boat.
170 Montauk - Owners Manual
Section 4 - Electrical System
11
The battery box should always be secured in place
by using the straps and clamps provided, the straps
will ensure that while underway the battery will not
move around, causing damage to components stored
in the same area.
The most life shortening experience for the battery
is to be drained to zero charge before recharging.
When a battery discharges, the active material on both
positive and negative plates converts to lead sulfate,
causing the plates to become more alike in an elec-
trical charge. The electricity conducting battery acid
becomes weaker and the voltage drops. As the bat-
tery remains discharged, the process continues until
recharging the battery becomes impossible. If the
battery does become run down be sure to recharge it
as soon as possible. Over charging the battery can be
just as detrimental to its life as running it down too
far. Battery maintenance should include:
Inspect the battery and charging system be
fore each use for loose connections or wiring.
Coat the terminals with dielectric grease.
Keep the battery safe and dry.
Remove the battery from the boat during cold
weather or long term storage.
Battery Maintenance
Battery Switch (optional)
The 170 Montauk has the option of using a battery
switch. The switch; located on the aft wall of the
console interior, allows you to control the delivery
of DC power from the battery to the engine as well
as allowing the alternator to charge the battery. Your
battery selector switch has two settings, ON and
OFF, ON gives you power from the battery only.
OFF you have no power to the engine. Remember
to turn the battery selector switch to ON before
you attempt to start your engine.
Note: The bilge pump cannot be turned off with the
battery selector switch.
Battery
Selector
Switch
Ignition Shutdown Switch
W ear your lanyard at all times while operating the boat.
It is for emergency stopping only. Do not use it to shut
off the engine during normal operation. The lanyard
should be long enough to prevent inadvertent activa-
tion.
CAUTION
!
The 170 Montauk is equipped with an ignition shut-
down safety switch. It is located starboard of the steer-
ing wheel, below the ignition switch. The ignition
shut down safety switch incorporates a shut-off
switch, switch clip, lanyard and lanyard clip, which
is clipped to the operator. If an emergency arises
where the engine must be shut down, a pull on the
cord to release the clip from the shut-off will shut
down the engine. This switch is designed to shut the
engine off when the operator of the boat leaves the
control station, either accidentally by falling into the
boat, or by being ejected overboard. This would most
likely occur as a result of poor operating practices.
Ignition Shut-down
Switch
IgnitionShut-down
Switch Plate
Lanyard
Ignition Shut-down
Switch Clip, (attaches to switch)
Ignition Shut-down
Switch Clip,(attaches to you)
Section 4 - Electrical System12
170 Montauk - Owners Manual
This owners manual supplement contains diagrams for your boat. These electrical diagrams were
generated by technicians in our engineering department and are for reference and use by service
technicians. Boston Whaler® does not recommend that you attempt to work on the electrical system
yourself, instead we suggest that you take it to an authorized Boston Whaler® dealer for electrical
service. Boston Whaler® reserves the right to change or update the electrical system on any model
at any time without notice to the consumer and is not obligated to make any updates to units built prior to the changes.
Electrical System
STEREOBILGE PUMPNAV/ANCHORN ACC-1 12V
RECEPT
12V
STEREOBILGE PUMPNAV/ANCHORN ACC-1 12V
RECEPT
12V
Section 4 - Electrical System 13
170 Montauk - Owners Manual
1 Instrument Panel
2 Horn Switch
3 5 Amp Breaker-Horn switch
4 Navigation/Anchor Switch
CAUTION
!
Never reset a breaker without first determining and
correcting the cause of the trip. Should a circuit re-
peatedly trip, have a qualified electrician determine
and correct the cause.
5 5 Amp Breaker-Navigation/Anchor Switch
6 Bilge Pump Switch, 3 Position
7 Accessory Switch
8 10 Amp Breaker-Accessory Switch
9 12V Receptacle
10 10 Amp Breaker-12V Receptacle Plug
11 Tachometer
12 Voltage Gauge
13 Water Pressure Gauge
1 23
45 78
6
910
11
12
13
Instrument Panel, Blank
Instrument Panel, Pre-Rig
Section 4 - Electrical System14
170 Montauk - Owners Manual
Navigation Lighting
Navigation lighting is provided as part of the 170
Montauks electrical system. Navigation lights must
be displayed while underway, from sunset to sun-
rise. The term underway means not at anchor or
docked. While at anchor in open water it is required
that your 360° pole light be illuminated. It is the boat
owners responsibility to display the proper sequence
of navigation lighting. Do not change the sequence
of navigation lighting of your boat. It is also the
responsibility of the boat owner to ensure that the
navigation lights are in good working order. The navi-
gation lights will let other boaters see the direction
your craft is traveling and its approximate length.
When operating in reduced visibility or at night it is
only prudent to slow the boats speed and keep a
proper lookout. It is important that you understand
navigation lights and their usage for your safety and
the safety of others. The navigation lights are con-
trolled by pressing the NAV/ANC switch located on
the instrument panel. When using the canvas sun-
top with the console mounted navigation light be sure
to slide the navigation light through the opening in
NOTICE
!
The improper sequence of navigation lighting may be
as dangerous as not having lights at all.
Off
Navigation
Lights
Anchor
Lights
Navigation/Anchor light switch operation
NOTICE
!
When using the SUN-TO P, make certain that all se-
curing straps are taut. Damage to the navigation light
can happen if the canvas frame straps are loose or
not secured properly.
the top of the sun-top. Be sure to remove the light
pole from the base before stowing the canvas Sun-
top. When not being used, the aft pole light can be
stowed in clips located on the starboard aft cockpit
area.
12 Volt Accessory Receptacle
Your 170 Montauk is equipped with a 12 volt acces-
sory receptacle located on the instrument panel. It is
a DC (cigarette lighter) style receptacle to be used
with any 12 volt accessories using this type of plug.
The receptacle is made of corrosion resistant marine
grade materials and has a moisture proof cap. There
is a 10 amp breaker button located just below the
receptacle. Be sure to use accessories that do not
exceed the rated capacity of the circuit, (10 amps)
or the breaker will trip.
D O N O T insert a cigarette lighter into this receptacle.
Damage to the unit & system could occur.
NOTICE
!
112° Port navigation
light (red)
112° Starboard
navigation light
(green)
360° all
round light
(white)
360° all
round light
stowage
location
STEREOBILGE PUMP ACC-1 12V
RECE
P
12
V
Section 5 - Bilge System
170 Montauk - Owners Manual
15
1 1100 GPH bilge pump
2 Float switch
3 1-1/8 Bilge pump discharge hose
4 Bilge sump
5 Bilge sump plug
6 Bilge pump outlet
7 Bilge sump cover
Bilge Pump
NOTICE
!
The bilge pump is wired directly to the battery. The bilge
pump switch can be set in several positions for bilge
pump operation. Be sure the bilge pump float switch is
clear of debris to prevent continuous operation and sub-
sequent discharge of the battery.
The 170 Montauk is equipped with an
1100 GPH electric bilge pump. It is
located in the aft cockpit sump just
forward of the motorwell. The switch
for bilge pump operation is located on
the instrument panel.
OPERATION:
The bilge pump switch has three operating positions:
Position 1-OFF-This position disconnects the
power from the battery. When moored the sump
drain plug can be removed to allow any stand-
ing water to be drained overboard. It is normal
for some water to enter the sump.
Position 2-AUTO-This position energizes the
float switch. The float switch cycles the bilge
pump ON when the water level in the sump
reaches a pre-determined level. If the boat is
under load and left unattended while the sump
drain plug is not in place, the battery can be dis-
charged, (due to continuous cycling). This
switch position should be used when the boat
will be supervised.
Position 3-ON-This position is for manual bilge
pump operation. The pump will run contiuously
until the switch is returned to one of the previ-
ous positions.
MAINTENANCE:
The bilge pump and float switch units are completely
sealed and little maintenance is required. It is impor-
tant to keep the bilge pump in good working order,
check around the float switch for debris and gummy
bilge oil that could impede the bilge pump from work-
ing properly. Check the bilge pump and hoses for
wear; clean and repair if neccessary.
Note: The bilge pump is wired directly to the bat-
tery. If the boat is to be dry docked for an extended
amount of time be sure to disconnect the battery
cables.
Bilge Pump & Location
1
2
3
4
5
6
Bilge Pump Switch Operation
Position
1
Position
2
Position
3
7
OFF AUTO ON
Bilge Pump Switch
location on instrument
panel
170 Montauk - Owners Manual
Section 6 - Propulsion
16
Propeller Information
Under no circumstance use a propeller which allows
the engine to operate at a higher than recommended
RPM.
NOTICE
NOTICE
It is advised that you always carry a spare propeller,
propeller hardware and propeller wrench on board.
Should your propeller become damaged it can be eas-
ily replaced.
Disconnect power by moving the battery switch to the
“OFF” position prior to removing the propeller.
DANGER
The engine on the 170 Montauk has
been equipped with a propeller;
which our tests have shown to be
best suited for general use under nor-
mal conditions and load. In some
situations you may wish to change the propellers to
give your boat slightly different performance char-
acteristics. Changing your boats running surface, such
as the addition of bottom paint will affect the type
and size of propeller required.
In general, changing to a lower pitch propeller will
increase acceleration and load pulling capability, with
a slight decrease in top end speed. If you choose to
change propellers, the type should be discussed with
your Boston Whaler® dealer.
All propellers are designed to provide maximum for-
ward thrust, so the reverse thrust of the propeller will
not be as efficient.
!
!
!
Propeller Assembly
8 Diffuser ring
9 Blade back
10 Blade root
11 Outer hub
12 Inner hub
13 Exhaust passage
14 Drive sleeve adapter
15 Lock ring
16 Prop nut
1
2
3
4
5
6
7
8
9
10
15
11
12
13
14
16
1 Shaft, (from en-
gine)
2 Forward thrust
washer
3 Drive sleeve
4 Blade face
5 Leading edge
6 Blade tip
7 Trailing edge
1
2
3
1 Propeller Diameter
2 1 Revolution, (Pitch)
3 Propeller Rake
Section 6 - Propulsion 17
170 Montauk - Owners Manual
Shift only when engine is running. Pause in neutral
while shifting, wait for boat to lose headway, and then
shift quickly. Easing into gear can damage the en-
gine.
CAUTION
!
Gear Shift & Throttle Control
The 170 Montauk is equipped with a
gear shift/throttle control unit
mounted on the console directly star-
board of the steering wheel. The gear
shift/throttle control unit for the en-
gine activates both shifting mechanism and throttle.
The control must be in the NEUTRAL position to
start your engine. Neutral is the most upright posi-
tion of the control unit and acts as an idle, the pro-
peller is not rotating. There is a throttle only but-
ton at the center of the throttle control that when de-
pressed will disengage the shifting mechanism and
will allow you to operate the throttle without engag-
ing the propeller. This button will automatically en-
gage the shifting mechanism once the throttle con-
trol has been moved back to its center position (you
will hear and feel a click when it is engaged). Mov-
ing the lever forward engages the forward gear and
then the throttle advance.
Throttle
Control
Lever
Power
Trim
Switch
FORWARD
REVERSE
NEUTRAL
Throttle
ONLY
Button
To reverse power, bring the control lever back to en-
gage the reverse gear and increase the reverse thrust.
The throttle control regulates the RPM of the engine.
Regulating the RPM of the engine will control the
speed of the boat. Pulling back on the gear shift/
throttle control while moving at a high speed will
cause a sudden slowing of the boat and will create a
following wake which may rise above the transom
and flood the boat. Understanding your boat and its
reactions at speed will make boating for you safer
and more enjoyable.
Power Trim Operation
The power trim & tilt system allows you to raise and
lower the engine outdrive for trailering, launching
and beaching. This also allows for ideal boat angle
(in relation to the water surface) for a given load and
water condition. In most cases, best all-round per-
formance is obtained with the engine adjusted so that
the boat will run at a 3° to 5° angle to the water. The
power trim is located on the inboard side of the gear
shift/throttle lever handle.
NOTE: Boats can be operated in a manner and at
certain speeds resulting in trim angles that could
cause visibility to be obscured. Motor trim, hull trim
plane angles (if equipped), boat load distribution
and speed are factors that affect a boats trim angle.
83
'1
Power Trim Switch Detail
Push to trim
engine UP
Push to trim
engine DOWN
170 Montauk-Owners Manual
Section 6 - Propulsion18
Your 170 Montauk is equipped with
a teleflex no-feedback steering sys-
tem. The Teleflex no-feedback steer-
ing system has a clutch mechanism
which prevents the engine torque
from being felt at the steering wheel. This reduces
driver fatigue by eliminating the constant need to
fight the wheel.
Maintenance:
The mechanical steering system should be checked
periodically by your Boston Whaler® dealer for
proper lubrication, alignment and to make sure there
is no looseness or binding of the cable. Proper main-
tenance of this system will ensure worry-free usage
for the life of your boat.
No-feedback steering system maintenance should
include the following:
After the first few hours of operation and at regu-
lar intervals, check all fasteners and the complete
steering system for security and integrity.
Check all moving parts to be sure they are free
of salt build-up and other foreign material. Such
build-up will affect their operation.
Steering Information
Do not cover cracks in the steering cable or fittings
with tape or other sealants. This will create a hazard in
which the cable can fail without warning.
CAUTION
!
Steering
Link Rod
Cable
Mounting
Tube
Steering
Cable
Steering
Wheel
No-feedback
Rotary Steer-
ing Assemly
Steering
Trim
Tab
Steering pull is unnecessary and unsafe! Steering trim
tabs provided on most engines are frequently improp-
erly adjusted, (they work opposite to normal expec-
tation).
To set steering trim tab for neutral steering:
There is a bolt on the underside center of the tab;
loosen the bolt prior to adjustment.
If boat veers to the right, (hands off), move the aft
end of the tab to the right.
If boat veers to the left, (hands off), move the aft end
of the tab to the left.
Steering Pull
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