Yamaha EF2800i - Inverter Generator, Service Manual

Page: 71 / 103

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