3. INSPECTION/ADJUSTMENT DINK50/125
CYLINDER COMPRESSION
Warm up the engine before compression test.
Remove the center cover and spark plug cap.
Remove the spark plug .
Insert a compression gauge.
Open the throttle valve fully and push the
starter button to test the compression.
Compression:
15 kgf/cm (1500 kPa, 213 psi)-DINK 125
18 kgf/cm (1800 kPa)-DINK 50
If the compression is low, check for the
following:
Leaky valves
Valve clearance to small
Leaking cylinder head gasket
Worn pistons
Worn piston/cylinder
If the compression is high, it indicates that
carbon deposits have accumulated on the
combustion chamber and the piston head.
DRIVE BELT
Remove the left crankcase cover.
Inspect the drive belt (1) for cracks or
excessive wear.
Replace the drive belt with a new one if
necessary and in accordance with the
Maintenance Schedule.
3-18
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