Checking The Carburetor - Yamaha Raptor 90 YFM90RA 2011 Service Manual

New
CARBURETOR
EBS00146
DISASSEMBLING THE CARBURETOR
TIP
Before disassembling the carburetor, make
sure to note the number of times the pilot
screw is turned out from the seated position to
its set position.
EAS00485

CHECKING THE CARBURETOR

1. Check:
• carburetor body
• float chamber
Cracks/damage
• fuel passages
Obstruction
• float chamber body
Dirt Clean.
• float chamber rubber gasket
Cracks/damage/wear
*****************************************************
a. Wash the carburetor in a petroleum-based
solvent. Do not use any caustic carburetor
cleaning solution.
b. Blow out all of the passages and jets with
compressed air.
*****************************************************
2. Check:
• float
• float tang
Damage
3. Check:
• needle valve
Damage/obstruction/wear
needle valve.
5 - 4
CARB
Replace.
Clean.
New
Replace.
Replace.
Replace the