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Manuals
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Bridgestone Manuals
Motorcycle
350 GTO
Service manual
Bridgestone 350 GTO Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
1 Technical Data
2 FRONT and SIDE VIEWS of BRIDGESTONE 350 GTR
3 Performance
4 Engine
Removing Engine
Notes of Caution
Tools Necessary
Removing the Engine
Mounting Engine on Frame
Disassembling and Assembling Engine
Special Precautions
Dismounting Engine
Component Parts of Crankcase
Assembling Engine
Crank Shaft • Piston • Rotary Valve
Crankshaft and Rotary Disc Valves
Construction
Inspection
Lubrication of the Crankshaft
Lubrication of Transmission Gears
Cylinders and Pistons
Construction
Notes of Caution
Inspection
Disassembling
Clutch
Construction
Operation
Clutch Adjustment
Disassembling Clutch
Inspection
Transmission
Construction
Operation
Component Parts of Gear Change Pedal & Shift Drum
Gear Shift Mechanism
Gear Operation and Gear Ratios
Inspection
Kick Starter
Construction
Operation
Inspection
Carburetors
Synchronizing Carburetors
Indication of Trouble at Various Engine Speeds
Idling Adjustment
Medium Engine Speed Adjustment
High Engine Speed Adjustment
Adjustment of Carburetor Float Level
Trouble Shooting of Gasoline Leaks from Carburetor
Oil Injection System
Operation
Oil Intake
Oil Outlet
Distribution of Oil to both Cylinders
Operation of Worm Wheel Plunger in Relation to the Throttle Grip
Engine Idling at Slow Speed
High Speed, Wide Open Throttle
Adjustment of Oil Pump Control Wire
Special Attention
Meshing the Plunger Gear with the Distributor Gear
Frame
Handlebar
Removing Handlebar
Assembling
Inspection
Front Fork
Operation
Disassembling
Assembling and Inspection
Removing the Steering Damper
Rear Suspension
Construction
Operation
Adjustment of Rear Suspension
Wheels
Construction
Checking of Tire Pressure and Balance
Front Wheel
Rear Wheel
Electrical Equipment
Generator
Description
Charging Current
Voltage Regulator
Ignition System
Contact Breakers
Adjusting the Gap
Checking and Adjusting Ignition Timing
Selenium Rectifier
Special Attention
Inspection
Condenser
Ignition Coil
Spark Plug
Description
Inspection and Adjustment
Battery
Inspection of Specific Gravity
Storage of Dry Charged Battery
Initial Charging Rate
Lights
Head Lamp • Tail Lamp
Speedometer • Ignition Coil • Main Switch
Bulbs
Adjustment of Head Light Beam
Main Switch
Horn
Trouble Shooting
Engine Is Hard to Start
High Engine Revolution Cannot be Obtained
Unsatisfactory R
Irregular Revolutions
Unsatisfactory Gear Shifting
Common Failures
Electrical Failure
Failures in Fuel System
Mechanical Failures
Tolerances and Fits
Engine
Cylinder
Piston
Crankshaft & Rotary Disc Valve
Clutch
Number of Teeth
Fork Guide
Generator & Ignition Coil
Carburetor
Oil Pump
Frame
Suspension
Lighting Equipment
Adjusting Torque
Performance
Port Timing
Port Dimensions
Port Time/Area
Cylinder Exhaust
Head Pipe
Squish Band Clearance
Rotary Valve
Ignition
Expansion Chamber
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Technical Data
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Table of Contents
Troubleshooting
Adjustment of Carburetor Float Level
42
TROUBLE SHOOTING
71
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Summarization of Contents
Technical Data
Engine
Engine specifications including type, displacement, power, and torque.
Performance
Performance metrics like max speed, climbing ability, fuel consumption.
Frame and Suspension
Details about the motorcycle's frame and suspension system.
Transmission
Dimensions and Weight
Specifications for overall dimensions and weight of the motorcycle.
Electrical Equipment
Components and specifications of the electrical system.
FRONT and SIDE VIEWS of BRIDGESTONE 350 GTR
Performance
ENGINE
Removing Engine
Step-by-step guide for engine removal.
Mounting Engine on Frame
Procedures for installing the engine onto the motorcycle frame.
Disassembling and Assembling Engine
Detailed instructions for engine disassembly and reassembly.
Component parts of crankcase
List and diagram of crankcase components.
CRANK SHAFT • PISTON • ROTARY VALVE
CRANKSHAFT AND ROTARY DISC VALVES
Construction and inspection of crankshaft and rotary disc valves.
CYLINDERS AND PISTONS
Details on cylinder and piston construction, inspection, and disassembly.
CLUTCH
Information on clutch construction, operation, adjustment, and disassembly.
TRANSMISSION
Construction
Overview of the 6-speed transmission system.
Operation
Explanation of how the gear shifting mechanism works.
Component part
Exploded view and list of transmission components.
Gear operation and gear ratios
Details on how gears operate and their ratios.
KICK STARTER
A. Construction
Description of the kick starter system's construction.
B. Operation
Explanation of how to operate the kick starter for starting and cruising.
CARBURETORS
Component parts of carburetor
Illustrated parts list for the carburetor assembly.
A. Synchronizing Carburetors
Instructions for synchronizing the twin carburetors for optimal performance.
B. Indication of trouble at various engine speeds
Troubleshooting guide for mixture issues based on engine speed.
C. Idling Adjustment
Steps for adjusting idle speed and mixture.
OIL INJECTION SYSTEM
Component parts of oil injection system
Illustrated parts list for the oil injection system.
A. Operation
Explanation of the oil injection mechanism's operation.
B. Oil Intake
Details on how oil is drawn into the injection pump.
C. Oil Outlet
Description of how oil is delivered from the pump.
FRAME
Component parts of frame and rear fender
Illustrated parts list for the frame and rear fender.
Handlebar
A. Removing Handlebar
Steps for removing the handlebar assembly.
B. Assembling
Instructions for reassembling the handlebar.
C. Inspection
Checks for brake and clutch lever play, and wiring.
Front Fork
Component parts of front fork
Illustrated parts list for the front fork assembly.
Rear Suspension
B. Disassembling
Steps for disassembling the front fork and front wheel.
C. Assembling and Inspection
Procedures for assembling and inspecting the front fork.
D. Removing the steering damper
Instructions for removing the steering damper.
Rear suspension
A. Construction
Description of the rear suspension system's construction.
B. Operation
Explanation of how the rear suspension operates under load and return stroke.
Wheels
A. Construction
Details on tire and drum specifications for wheels.
B. Checking of Tire Pressure and Balance
Procedures for checking tire pressure and wheel balance.
Front Wheel
Component parts of front wheel
Illustrated parts list for the front wheel assembly.
Rear Wheel
Component parts of rear wheel
Illustrated parts list for the rear wheel assembly.
ELECTRICAL EQUIPMENT
Dynamo and neutral switch
Components of the dynamo and neutral switch.
A.C. Generator
Description of the AC generator and its output.
Voltage Regulator
Information on the voltage regulator and charging current.
Ignition system
Details on contact breakers and ignition timing.
Spark plug
A. Description
Description of the standard spark plug and its gap.
B. Inspection and Adjustment
Procedures for checking, cleaning, and replacing spark plugs.
Battery
A. Inspection of Specific Gravity
Method for checking battery electrolyte specific gravity.
Battery
B. Storage of dry charged battery
Information on storing dry charged batteries.
C. Initial Charging Rate
Procedures for initial charging of a new battery.
Lights
A. Head lamp • Tail lamp
Illustrated parts list for headlamp and taillamp.
TROUBLE SHOOTING
13-1 Engine is hard to start
Troubleshooting guide for engine starting difficulties.
High engine revolution cannot be obtained
Unsatisfactory R.P.M.
Irregular Revolutions
13-5 Unsatisfactory gear shifting
Troubleshooting steps for gear shifting problems.
Common Failures, Their Causes and Correction
Electrical failures
Troubleshooting common electrical failures and their causes.
Fuel failures
Troubleshooting common fuel system failures and their causes.
Mechanical failures
Troubleshooting common mechanical failures and their causes.
Failures in fuel system
TOLERANCES AND FITS
A. Engine
Tolerances and fits for engine components.
B. Cylinder
Specifications for cylinder inside diameter and gasket thickness.
C. Piston
Measurements and clearances for piston and piston pins.
D. Crankshaft & Rotary Disc Valve
Dimensions for crankshaft and rotary disc valve components.
WIRING DIAGRAM
PERFORMANCE
16-1 Port Timing
Timing specifications for exhaust, boost, and rotary valves.
16-2. Port Dimensions
Dimensions for exhaust, transfer, and boost ports.
16-3. Port Time/Area
Calculations for port time and area.
16-4. Cylinder Exhaust Tract Length
Specification for cylinder exhaust tract length.
16-5. Head Pipe Length
Specification for head pipe length.
Performance Information
16-6. Squish Band Clearance
Procedure for measuring and setting squish band clearance.
16-7. Rotary Valve
Recommendation against modifying rotary valves.
16-8. Ignition
Ignition timing and spark plug gap specifications.
16-8. Expansion Chamber
Information on fitting and modifying the expansion chamber.
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