Troubleshooting; Starting Failure/Hard Starting; Fuel System - Yamaha TW200 Service Manual

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STARTING FAILURE/HARD STARTING. ,
TROUBLESHOOTING
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NOTE: _
The following troubleshooting does not cover all the possible causes of trouble. It should be helpful,
however, as a guide to troubleshooting. Refer to the relative procedure in this manual for inspection,
adjustment and replacement of parts.
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STARTING FAILURE/HARD STARTING
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FUEL SYSTEM PROBABLE CAUSE
Fuel tank - - - - - - - - - - [ -Empty
-Clogged fuel filter
- Clogged fuel tank cap
- Deteriorated fuel or fuel containing water or
foreign material
Fuel cock - - - - - - - - - - -Clogged fuel hose
Carburetor - - - - - - - - - . . . . , . . - - Deteriorated fuel, fuel containing water or
foreign material
- Clogged pilot jet
- Clogged pilot air passage
- Cracked carburetor joint
-Improper tightened screw (Carburetor joint)
- Sucked-in air
- Deformed float
- Groove-worn needle valve
-Improperly sealed valve seat
-Improperly adjusted fuel level
-Improperly set pilot jet
- Clogged starter jet
-Starter plunger malfunction
Air cleaner - - - - - - - - - - - Clogged air filter
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