Bayliner 237 Deckboat User manual

Engine Serial Number: _____________________________________
Hull Identification Number:__________________________________
Hull Identification Number
•The Hull Identification
Number (HIN) is
locatedonthe starboard
hullside just forward of
the transom.
•Record the HIN (and
the engine serial num-
bers) in the space pro-
vided above.
•Include the HIN with
any correspondence or
orders.
© 2006 Bayliner Technical Publications. All rights reserved.
No part of this publication may be reproduced, stored in any retrieval system, or transmitted in any form by any means, electronic, mechanical,
photocopying, recording or otherwise, without prior written permission of the author, James A. Miller.
Printed in the United States of America.
General Notes
The material in this document is for information only and is subject to change without notice. While reasonable efforts have been made in the
preparation of this document to assure its accuracy, Bayliner assumes no liability resulting from errors or omissions in this document, or from
the use of information contained herein.
Due to our commitment to product improvement, Bayliner reserves the right to make changes in the product design, specifications, and equip-
ment at any time without notice or obligation. Illustrations and/or photos may show optional equipment.
All Bayliner products meet or exceed USCG (United States Coast Guard) and/or NMMA (National Marine Manufacturer’s Association) con-
struction standards. Manufactured with 1,1,1 Trichloroethane, a substance which harms public health and environment during the manufactur-
ing process by destroying ozone in the upper atmosphere.
Proprietary Rights
This document discloses subject matter in which Bayliner has proprietary rights. The information and design disclosed herein were originated
by and are the property of Bayliner. Neither receipt nor possession thereof confers or transfers any right to reproduce, copy, alter or disclose the
document or any part thereof, any information contained therein, or to construct boats or any item from it, except by written permission from or
written agreement with Bayliner. This document is to be returned upon request to Bayliner.
Part Number
1838571

CONTENTS
Chapter 1: Welcome Aboard!
Dimensions & Tank Capacities 1
Dealer Service 1
Warranty Information 1
Boating Experience 1
Engine & Accessory Guidelines 2
Engine & Accessory Literature 2
Propeller 2
Structural Limitations 3
Qualified Maintenance 3
Special Care for Moored Boats 3
Safety Standards 4
Carbon Monoxide (CO) 5
CO Facts 5
Factors that Increase the Effects of CO Poisoning 5
Where & How CO Can Accumulate 6
How to Protect Yourself & Others From CO 6
CO Checklists 7
More Information 7
Warning Labels 8
Chapter 2: Locations
Exterior Views 9
Hull Views 9
Deck Views 10
Helm 11
Component Locations 12
Chapter 3: Propulsion & Related Systems
Engine 22
Bilge Blower System 22
Fuel System 23
Fuel Fill & Vent 23
Fuel Filters 24
Anti-siphon Valve 24
Quick Oil Drain System 25
Chapter 4: Controls & Gauges
Steering 26
Shift/Throttle Controls 26
Power Trim & Tilt 26
Gauges 26
Cleaning the Gauges 26
Gauge Fogging 26
Radio Transmission Interference 26
Fuel Gauge 26
Chapter 5: Navigation Equipment
Depth Finder 27
Chapter 6: Plumbing
Bilge Pumps 28
Bilge Pump Testing 28
Autofloat Switches 29
Seawater Systems 30
Seacocks 30
Seawater Strainers 30
Livewell System 31
Freshwater System 32
Transom Shower 32
Freshwater System Winterization 33
Drain Systems 34
Deck Drains 34
Sink Drains 34
Portable Toilet 34
Portable Toilet Pump-out (If Equipped) 34

Chapter 7: Deck Equipment
Cleats & Bow/Stern Eyes 35
Bow Mount Trolling Motor (If Equipped) 35
Ski-Tow Ring 35
Ski-Tow Tower (If Equipped) 36
Attaching the Ski-tow Rope 36
Folding Ski-tow Tower 37
Tower Care 37
Canvas 38
Aft Bimini Top 38
Forward Bimini Top (If Equipped) 39
Canvas Care 40
Chapter 8: Entertainment Systems
Audio Equipment 41
Chapter 9: Convertible Seats, Beds, & Tables
Stowage Areas 42
Bow Sunlounge Conversion 43
Removable Fishing Seats (If Equipped) 45
Chapter 10: Lights
Care & Maintenance 46
Interior & Exterior Lights 46
Navigation Lights 46
Chapter 11: Electrical System
12-Volt DC System 48
Battery 48
Fuses & Fuse Block 48
12-Volt DC Accessory Outlet(s) 48
Alternator 48
Electrical Routings 49
12-Volt DC Hull Harness 49
12-Volt DC Deck Harness 50
12-Volt DC Digital Depth Finder & Trolling Motor
Harness (If Equipped) 51
12-Volt DC Fish Pack Harness (If Equipped) 52
Battery Cable Routings 52
Important Records 53
Float Plan 54

Hazard Boxes & Symbols
The hazard boxes and symbols shown below are used throughout this supplement to call attention to potentially dan-
gerous situations which could lead to either personal injury or product damage. Read all warnings carefully and fol-
low all safety instructions.
This box alerts you to immediate hazards which WILL cause severe personal injury or death if
the warning is ignored.
DANGER!
!
This box alerts you to hazards or unsafe practices which COULD result in severe personal
injury or death if the warning is ignored.
WARNING!
!
This box alerts you to hazards or unsafe practices which COULD result in minor personal
injury or cause product or property damage if the warning is ignored.
CAUTION
!
This box calls attention to installation, operation or maintenance information, which is impor-
tant to proper operation but is not hazard related.
NOTICE
CO POISONING
HAZARD!
EXPLOSION
HAZARD! NO OPEN FLAME! HOT HAZARD!
ROTATING
PROPELLER HAZARD!
FALLING
HAZARD!
ELECTRICAL
HAZARD!
FIRE
HAZARD!
RUN BILGE BLOWERS
FOR 4 MINUTES!

1
237 •Owner’s Manual Supplement
Chapter 1: Welcome Aboard!
•This Owner’s Manual Supplement provides information about your boat that is not covered in the Sport Boat
Owner’s Manual.
•Before using your boat, study this Owner’s Manual Supplement, the Sport Boat Owner’s Manual, and all engine
and accessory literature carefully.
•Keep this Owner’s Manual Supplement and the Sport Boat Owner’s Manual on your boat in a secure, yet readily
available place.
Dimensions & Tank Capacities
Dealer Service
•Your dealer is your key to service.
•Ask your dealer to explain all systems before taking delivery of your boat.
•Contact your dealer if you have any problems with your new boat.
•If your dealer cannot help, call our customer service hotline: [phone] or send us a FAX: [phone].
•Buy replacement parts from any authorized Bayliner dealer.
Warranty Information
•Bayliner offers a Limited Warranty on each new Bayliner purchased through an authorized Bayliner dealer.
•A copy of the Limited Warranty was included in your owner’s packet.
•If you did not get a copy of the Limited Warranty, please contact your Bayliner dealer or call 360-435-8957 for
a copy.
Boating Experience
If this is your first boat or if you are changing to a type of boat you are not familiar with, for your own comfort and
safety, get handling and operating experience before assuming command of your boat.
Take one of the boating safety classes offered by the U.S. Power Squadrons or the U.S. Coast Guard Auxiliary. For
more course information, including dates and locations of upcoming classes, contact the organizations directly:
•U.S. Power Squadrons: 1-888-FOR-USPS (1-888-367-8777) or on the Internet at: http://www.usps.org
•In Canada, for the CPS courses call 1-888-CPS-BOAT.
•U.S. Coast Guard Auxiliary: 1-800-368-5647 or on the Internet at: http://www.cgaux.org
Outside the United States, your selling dealer, national sailing federation, or local boat club can advise you of local
sea schools or competent instructors.
Overall
Length Length Rigged Bridge Clearance Beam Draft (Hull) Draft (Maximum) Fuel Capacity Freshwater Capacity
23' 1" 24' 8" 8' 2" 8' 6" 1' 5" 2' 10" 65 Gallons 15 Gallons
CONTROL HAZARD!
A qualified operator MUST be in control of your boat atALL times. Do NOToperate your boat
while under the influence of alcohol or drugs.
WARNING!
!

Chapter 1: Welcome Aboard! 237 •Owner’s Manual Supplement
2
Engine & Accessory Guidelines
•Your boat’s engine and accessories were selected to provide optimum performance and service.
•Installing a different engine or other accessories may cause unwanted handling characteristics.
•Should you choose to install a different engine or accessories that will affect your boat’s running trim, have an
experienced marine technician perform a safety inspection and handling test before operating your boat again.
Engine & Accessory Literature
•The engine and accessories installed on your boat come with their own operation and maintenance manuals.
•Read these manuals before using the engine and accessories.
•Unless noted otherwise, all engine and accessory literature referred to in this supplement is included in your
owner’s packet.
Propeller
•Keep the propeller in good repair and at the correct pitch for your particular situation.
•A slightly bent or nicked propeller will adversely affect the performance of your boat.
When storing your boat, please refer to your engine’s operation and maintenance manuals.
NOTICE
Certain modifications to your boat WILL result in cancellation of your warranty protection.
ALWAYS check with your dealer BEFORE making any modifications to your boat.
NOTICE
ENGINE DAMAGE HAZARD!
The factory standard propeller may not be the best for your particular boat and load condi-
tions. Refer to the engine manual for engine RPM ratings. The engine should reach, but not
exceed its full rated RPM when full-throttle is applied.
Immediately contact your local Bayliner dealer if:
•The engine cannot reach its full rated RPM when full-throttle is applied, or;
•The engine exceeds its full rated RPM when full-throttle is applied.
CAUTION
!

237 •Owner’s Manual Supplement Chapter 1: Welcome Aboard!
3
Structural Limitations
The swim platform extension is designed to be lightweight for proper boat balance. The load limit for the swim plat-
form extension is 30 pounds per square foot, evenly distributed.
Qualified Maintenance
•Failure to maintain your boat’s systems (listed in the warning above) as designed could violate the laws in your
jurisdiction and could expose you and other people to the danger of bodily injury or accidental death.
•Follow the instructions provided in the Sport Boat Owner’s Manual, this supplement, the engine owner’s manual,
and all accessory literature.
Special Care for Moored Boats
•Whether moored in saltwater or freshwater, your boat will collect marine growth on its hull bottom.
•This will detract from your boat’s beauty, greatly affect its performance, and may damage the gel coat.
•Periodically haul your boat out of the water and scrub the hull bottom with a bristle brush and a solution of soap
and water.
To maintain the integrity and safety of your boat, allow ONLY qualified personnel to perform
maintenance on, or change, in any way, the:
•Steering system
•Propulsion system
•Engine control system
•Fuel system
•Environmental control system
•Electrical system
•Navigational system
WARNING!
!
•To help seal the hull bottom and reduce the chance of gel coat blistering while your boat is
moored, apply an epoxy barrier coating.
•The barrier coating should be covered with several coats of anti-fouling paint.
•Many states regulate the chemical content of bottom paints in order to meet environmental
standards. Check with your local dealer about recommended bottom paints, and about the
laws in effect in your area.
NOTICE

Chapter 1: Welcome Aboard! 237 •Owner’s Manual Supplement
4
Safety Standards
•Your boat’s mechanical and electrical systems were designed to meet safety standards in effect at the time it
was built.
•Some of these standards were mandated by law, and all of them were designed to insure your safety and the safety
of other people, vessels and property.
Read this supplement, the Sport Boat Owner’s Manual, and all accessory instructions for important safety standards
and hazard informatio
FALLING and ROTATING PROPELLER HAZARD!
•NEVER allow anyone to ride on parts of your boat NOT designed for
such use.
•Sitting on seat-backs, lounging on the forward deck, bow riding, gun-
wale riding or occupying the transom platform while underway is especially hazardous and
WILL cause personal injury or death.
DANGER!
!
FALLING, ROTATING PROPELLER and CARBON
MONOXIDE POISONING HAZARD!
•NEVER allow anyone to occupy, or hang from, the
back deck or swim platform while the engine
is running.
•Teak surfing, dragging, or water skiing within 20 feet
of a moving watercraft can be fatal.
DANGER!
!
DANGER
PERSONAL SAFETY HAZARD!
•ALWAYS secure the anchor and other loose objects BEFORE getting underway.
•The anchor and other items that are NOT properly secured can come loose when your boat
is moving and cause personal injury or death.
DANGER!
!
A wide variety of components used on this vessel contain or emit chemicals known to the State
of California to cause cancer and birth defects and other reproductive harm.
Examples Include:
•Engine and generator exhaust
•Engine and generator fuel, and other liquids such as coolants and oil, especially used
motor oil
•Cooking fuels
•Cleaners, paints, and substances used for vessel repair
•Waste materials that result from wear of vessel components
•Lead from battery terminals and from other sources such as ballast or fishing sinkers
To Avoid Harm:
•Keep away from engine, generator, and cooking fuel exhaust fumes.
•Wash exposed skin thoroughly with soap and water after handling the substances above.
WARNING!
!

237 •Owner’s Manual Supplement Chapter 1: Welcome Aboard!
5
Carbon Monoxide (CO)
CO Facts
•CO poisoning causes a significant number of boating deaths each year.
•Called the "silent killer", CO is an extremely toxic, colorless, odorless and tasteless gas.
•CO can harm or even kill you inside or outside your boat.
•CO can affect you whether you’re underway, moored, or anchored.
•CO symptoms are similar to seasickness or alcohol intoxication.
•CO can make you sick in seconds. In high enough concentrations, even a few breaths can be fatal.
•Breathing CO blocks the ability of your blood to carry oxygen.
•The effects are cumulative. Even low levels of exposure can result in injury or death.
Factors that Increase the Effects of CO Poisoning
•Age
•Smokers or people exposed to high concentrations of cigarette smoke
•Consumption of alcohol
•Lung disorders
•Heart problems
•Pregnancy
•Carbon monoxide gas (CO) is colorless, odorless, tasteless, and
extremely dangerous.
•ALL engines, generators, and fuel burning appliances produce CO
as exhaust.
•Prolonged exposure to low concentrations or very quick exposure to high
concentrations WILL cause BRAIN DAMAGE or DEATH.
•Teak surfing, dragging, or water skiing within 20 feet of a moving water-
craft can be fatal.
DANGER!
!

Chapter 1: Welcome Aboard! 237 •Owner’s Manual Supplement
6
Where & How CO Can Accumulate
Stationary conditions that increase CO accumulations include:
To correct stationary situations A and/or B:
•Close all windows, portlights and hatches.
•If possible, move your boat away from source of CO.
Running conditions that increase CO accumulations include:
To correct running situations C and/or D:
•Trim bow down.
•Open windows and canvas.
•When possible, run boat so that prevailing winds help dissipate exhaust.
How to Protect Yourself & Others From CO
•Know where and how CO may accumulate in and around your boat (see above).
•Always maintain fresh air circulation throughout your boat.
•Know where your engine and generator exhaust outlets are located and keep everyone away from these areas.
•Never sit on, or hang onto, the back deck or swim platform while the engine(s) is running OR engines are running.
•Never enter the areas under swim platforms where exhaust outlets are located.
•Although CO can be present without the smell of exhaust fumes, if exhaust fumes are detected on your boat, take
immediate action to dissipate these fumes.
•Treat symptoms of seasickness as possible CO poisoning. Get the person into fresh air immediately. Seek medical
attention—unless you’re sure it’s not CO.
•Install and maintain CO monitors inside your boat. Never ignore any alarm. Replace monitors as recommended by
the monitor manufacturer.
•Follow the checklists provided on the next page.
•Get a Vessel Safety Check.
For information on how to get a free VESSEL SAFETY CHECK, visit www.vesselsafetycheck.org or contact your
local U.S. Coast Guard Auxiliary or United States Power Squadrons®.
•U.S. Coast Guard Auxiliary: 1-800-368-5647 or on the Internet at: http://www.cgaux.org
•U.S. Power Squadrons: 1-888-FOR-USPS (1-888-367-8777) or on the Internet at: http://www.usps.org
A. Using engine, generator, or other fuel burn-
ing device when boat is moored in a con-
fined space.
B. Mooring too close to another boat that is
using its engine, generator, or other fuel
burning device.
C. Running boat with trim angle of bow too high. D. Running boat without through ventilation
(station wagon effect).

237 •Owner’s Manual Supplement Chapter 1: Welcome Aboard!
7
CO Checklists
Trip Checklist
❏Make sure you know where the exhaust outlets are located on your boat.
❏Educate all passengers about the symptoms of CO poisoning and where CO may accumulate.
❏When docked, or rafted with another boat, be aware of exhaust emissions from the other boat.
❏Listen for any change in exhaust sound, which could mean an exhaust component failure.
❏Test the operation of each CO monitor by pressing the test button.
Monthly Checklist
❏Make sure all exhaust clamps are in place and secure.
❏Look for exhaust leaking from exhaust system components. Signs include rust and/or black streaking, water
leaks, or corroded or cracked fittings.
❏Inspect rubber exhaust hoses for burned, cracked, or deteriorated sections. All rubber hoses should be pliable and
free of kinks.
Annual Checklist
Have a Qualified Marine Technician:
❏Replace exhaust hoses if cracking, charring, or deterioration is found.
❏Ensure that your engines and generators are properly tuned, and well maintained.
❏Inspect each water pump impeller and the water pump housing. Replace if worn. Make sure cooling systems are
in working condition.
❏Inspect all metallic exhaust components for cracking, rusting, leaking, or loosening. Make sure they check the
cylinder head gasket, exhaust manifold, water injection elbow, and the threaded adapter nipple between the man-
ifold and the elbow.
❏Clean, inspect, and confirm proper operation of the generator cooling water anti-siphon valve (if equipped).
More Information
For more information about how you can prevent carbon monoxide poisoning on recreational boats and other ways to
boat more safely, contact:
For information on how to get a free VESSEL SAFETY CHECK, visit www.vesselsafetycheck.org or contact your
local U.S. Coast Guard Auxiliary or United States Power Squadrons®.
•U.S. Coast Guard Auxiliary: 1-800-368-5647 or on the Internet at: http://www.cgaux.org
•U.S. Power Squadrons: 1-888-FOR-USPS (1-888-367-8777) or on the Internet at: http://www.usps.org
U
nited States Coast Guard
O
ffice of Boating Safety (G-OPB-3)
2
100 Second Street SW
W
ashington, DC 20593
w
ww.uscgboating.org
1
-800-368-5647
National Marine Manufacturers
Association (NMMA)
200 East Randolph Drive
Suite 5100
Chicago, IL 60601-9301
www.nmma.org
312-946-6200
American Boat & Yacht Council, In
c.
(ABYC)
3069 Solomon’s Island Road
Edgewater, MD 21037-1416
www.abycinc.org
410-956-1050

Chapter 1: Welcome Aboard! 237 •Owner’s Manual Supplement
8
Warning Labels

9
237 •Owner’s Manual Supplement
Chapter 2: Locations
Exterior Views
Hull Views

Chapter 2: Locations 237 •Owner’s Manual Supplement
10
Deck Views

237 •Owner’s Manual Supplement Chapter 2: Locations
11
Helm
ACTUAL LAYOUT MAY VARY DEPENDING
ON ENGINE AND ACCESSORY OPTIONS
NOTE: TYPICAL HELM LAYOUT SHOWN

Chapter 2: Locations 237 •Owner’s Manual Supplement
12
Component Locations
12-Volt DC Accessory
Outlets (2 Total):
•One is located at the
helm.
•One is located on the starboard aft
corner of the deck.
12-Volt DC Fuse Block: Located under the
helm.

237 •Owner’s Manual Supplement Chapter 2: Locations
13
12-Volt DC Trolling
Motor Circuit Breaker
(If Equipped) (There are
two possible locations):
•Located under the star-
board bow seat cushion,
or;
•Located inside the port
cockpit hatch, behind the
trash can.
12-Volt DC Trolling Motor Recepta-
cle (If Equipped): Located on the port
side of the forward deck.

Chapter 2: Locations 237 •Owner’s Manual Supplement
14
Battery: Located in the port aft corner of
the engine compartment.
Bilge Pumps:
•The aft bilge pump is located
in the engine compartment
bilge.
•The forward bilge pump
is located in the cockpit
aft floor hatch.