Yamaha EF2800i Service Manual page 71

*
Check carburetor for
clogged passages or fuel
overflow.
GOOD NO GOOD
Measure valve clearance.
OUT OF
GOOD SPECIFICA-
TION
Check compression using
compression gauge.
OUT OF
SPECIFICA- GOOD
TION
Check valve face and valve
seat for wear.
GOOD WEAR
Check if the timing marks
on the crankshaft and cam-
shaft are aligned.
GOOD NO GOOD
Check if there is seizure or
wear on the piston, piston
ring, or cylinder.
SEIZURE
GOOD
OR WEAR
Check the condition of the throttle control
system.
Refer to "THROTTLE CONTROL SYS-
TEM".
TROUBLESHOOTING
3-43
ENG
Clean.
Adjust.
Resurface or
replace.
Correct or replace.
Rebore or replace.