Chapter 8. Troubleshooting; Starting Failure / Difficulty; Fuel System - Yamaha ttr230 Service Manual

NOTE:
This chapter does not cover all possible causes of problems.
Nevertheless, it will help as a troubleshooting guide.

STARTING FAILURE / DIFFICULTY

FUEL SYSTEM

Fuel tank
Fuel cock
Carburetor
Air filter element
STARTING FAILURE / DIFFICULTY
TROUBLESHOOTING
8-1
POSSIBLE CAUSE
• Empty
• Clogged fuel filter
• Clogged breather
• Fuel contaminated with water or other
substance
• Clogged fuel hose
• Clogged fuel filter
• Fuel contaminated with water or other
substance
• Clogged low-speed adjusting nozzle
• Clogged passage in the air adjusting
nozzle
• False air entrance
• Deformed float
• Worn float valve
• The float valve does not seal
• Irregular fuel level
• Wrong low-speed adjusting nozzle
• Clogged starting adjusting nozzle
• Choke malfunction
• Choke cable not adjusted
• Clogged
PROB