6D81G11
9-8
1
2
3
4
5
6
7
8
9
Does the
engine start?
Wet spark plugs?
Within
specification?
Within
specification?
Failure in starting operation
Failure in starting operation
Check the fuel system.
Check the condition of the spark
plugs again.
Check the compression pres-
sure of the combustion chamber.
Check the valve
clearance.
Adjust the valve
clearance.
Yes
Yes
Yes
Yes
No
No
No
No
Check the cylinder head, cylin-
der block, and piston assembly.
Power unit