Service Manual

ENGINE TROUBLESHOOTING CHART
The possible causes have been arranged with
The following troubleshooting chart lists the
the most easily inspected items to be checked
symptoms, causes and remedies of common
listed first. Utilizing the chart in this manner
Will
engine malfunctions. Once the symptom
lessen the amount
Of time required to repair the
been determined, systematically eliminate the
engine and limit the possibility
Of incorrectly
possible causes until the actual cause is found.
diagnosing
the cause of the difficulty.
SYMPTOMS
Install correct spark plug, page 1-5
Reset air gap .8mm (.032")
Replace spark plug
Replace spark plug
Empty carb
& tank refill w/fresh
Empty carb &tank refill w/fresh mi)
Clean or replace cap
__- Check lines for restriction
Clean
or replace filter
Squeeze excess oil
from filter
Reseal crankcase and replace seals
Readjust See page
11-4
__-
Readjust refer to page 111-2
Replace ignition switch
Clean all exhaust ports
Clean
or replace See page 11-1
Check linkage and cable adjustment
Check linkage and governor adj.
Replace needle
Replace cracked bowl float
Repair or replace starter
Repair or replace
Replace flywheel
____-._-
_-
Replace ignition coil
d replace worn parts
Diagnose and replace broken parts
111-4