Simplicity SunRunner 1691331 Operator's Manual page 22

Troubleshooting
Problem__
2. Engine starts hard or runs poorly.
3. Engine knocks.
4. Excessive oil consumption.
5. Engine exhaust is black.
6. Engine runs, but rider will not drive.
7. Rider drive belt slips.
8. Brake will not hold.
__Cause/Remedy____
A.
Fuel mixture too rich. Clean air filter. Check choke adjustment
(engine speed control). See engine manual.
B.
Carburetor adjusted incorrectly. See engine manual.
C. Spark plug faulty, fouled, or incorrectly gapped. Clean
_and gap or replace. See engine manual.__
A.
Low oil level. Check/add oil as required.
B.
Using wrong grade oil. See engine manual__
A.
Engine running too hot. Clean engine fins, blower screen and air
cleaner.
B.
Using wrong weight oil. See engine manual.
C. Too much oil in crankcase. Drain excessive oil._
A.
Dirty air filter. Clean air filter. See engine manual.
B.
Check engine speed control adjustment (choke).
_See engine manual._
A.
Tow valve engaged. Disengage.
B.
Belt or chain is broken. Replace. Check chain adjustment.
(See Adjustments section.)
C. Drive belt slips. (See problem and cause below.)_
A.
Clutch is out of adjustment. See your dealer.
B.
Pulleys or belt greasy or oily. Clean as required.
C.
Belt stretched or worn. Replace with correct belt.
D. Clutch rod binding in guide. Oil clutch rod._
A.
Brake is incorrectly adjusted. See your dealer.
B.
Brake band worn and requires replacement. See your dealer.
C. Oil on brakes. Clean or replace brake band. See your dealer.
20