3. INSPECTION/ADJUSTMENT
3-7
GRAND DINK 250
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 valves fully and pushes the
starter button to test the compression.
Compression: 15±2kg/cm²
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.
FUEL TANK CAP CABLE WIRE
Please inspect the fuel tank cap cable wire
slack when operate the fuel tank cap hardly.
SEAT CABLE WIRE
Please inspect the seat cable wire when
operate the seat hardly.
Compression Gauge
Pull Relax
Pull Relax
Look Nu
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