Troubleshooting; Starting Failure/Hard Starting; Fuel System - Yamaha DT125RE 2005 Service Manual

NOTE:
The following troubleshooting does not cover all the possible causes of trouble. It should be help-
ful, however, as a guide to troubleshooting. Refeer to the relative procedure in this manual for ins-
pection, adjustment and replacement of parts.

STARTING FAILURE/HARD STARTING

FUEL SYSTEM

• Fuel tank
• Fuel cock
• Carburetor
• Air cleaner
STARTING FAILURE/HARD STARTING

TROUBLESHOOTING

PROBABLE CAUSE
• Empty
• Clogged fuel filter
• Clogged fuel tank cap
• Deteriorated fuel or fuel containing
or foreign material
• Clogged fuel hose
• Deteriorated fuel, fuel containing
water or foreign material
• Clogged pilot jet
• Clogged pilot air passage
• Sucked-in air
• Deformed float
• Groove worm needle valve
• Improperly sealed valve seat
• Improperly adjustment fuel level
• Improperly set pilot jet
• Clogged starter jet
• Starter plunger malfunction
• Improperly adjusted starter cable
• Clogged air filter
9-1
TRBL
SHTG