Vehicle should now start. If hard-start/poor idle condition is now present, refer to appropriate
section (above). If no-start condition remains and spark plug is gas-fouled, the carburetor’s
enrichment valve needs replacing. From this point, if no-start condition remains, perform an
ENGINE COMPRESSION TEST (refer to guide for proper procedure and specifications).
If engine fails to build sufficient compression, the most likely causes are a faulty head gasket
or a scoured/abraded cylinder or piston assembly. In the event of either of the latter, the head
gasket will need replaced at the same time (refer to guide for proper procedure and
specifications).
If symptom persists beyond this point, verify proper ENGINE TIMING (refer to guide for
proper procedure and specifications). If out of range, the CDI has a bad contact internally
and needs replacement (refer to guide). Recommend replacement of MAGNETO
ASSEMBLY as well.
INSUFFICIENT ENGINE POWER/LACK OF ACCELERATION
In the event that this symptom presents itself, the most common issue lies in interference
with rear wheel/tire rotation. To inspect, simply spin the rear wheel.
Wheel rotates freely
Ensure proper tire pressure.
If wheel has abnormal resistance/gets
hung up
Inspect wheel bearing and lubricate/replace
as needed.
Ensure proper drive belt tension.
Ensure proper function of the driven clutch
assembly (no binding or hang-ups).
Ensure proper tire pressure.
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