Trouble Analysis - Yamaha 40V Service Manual

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ANLS

TROUBLE ANALYSIS

NOTE:
Following items should be obtained before "trouble analysis".
1. Battery is charged and its specified gravity is in specification.
2. There is no incorrect wiring connection.
3. Wiring connections are surely engaged and without any rust.
4. Lanyard is installed to the engine stop switch.
5. Shift position is in neutral.
6. Fuel is coming to the carburetor.
7. Correct rigging and engine setting are obtained.
8. Engine is free from any "Hull problem".
TROUBLE ANALYSIS CHART
Trouble mode
TROUBLE ANALYSIS
Check elements
Relative part
FUEL SYSTEM
Fuel hose
Fuel joint
Fuel filter
Fuel pump
Carburetor
Pilot screw setting
Idle speed
POWER UNIT
Compression
Reed valve
Cylinder head gasket
Seal
Cylinder body
Piston ring
Crank case
Piston
Link adjustment
Bearing
Thermostat
Water passage
9-1
E
Reference
Chapter
4
4
4
4
4
4
3
5
5
5
5
5
5
5
5
3
5
5
5