89 TransAlp Manual General Specifications Service 3

MAINTENANCE

CYLINDER COMPRESSION

Warm up the engine.

Stop the engine and remove the spark pług.

Connect a compression gauge.

Turn the engine stop switch OFF.

Open the throttle grip fully. Crank the engine with the starter motor until the gauge stops rising.

Check the gauge reading.

NOTĘ

• Check the there is no leakage at the gauge connection.

COMPRESSION:

1177 ± 98 kPa (12.0 ± 1.0 kg/cm². 171 ± 14 psi)

TOOL:

Compression gauge    07305—0010000

Low compression can be caused by:

•    Improper valve clearance adjustment

•    Valve leakage

•    Leaking cylinder head gasket

•    Worn piston rings or cylinder

High compression can be caused by:

•    Carbon deposits in the combustion chamber or on the piston head.

EVAPORATIVE EMISSION CONTROL SYSTEM (California model only)

Check the system hoses for damage, deterioration, kinking clogging or loose connections.

Check the charcoal canister for cracks or damage.

Refer to the vacuum hose routing diagram label for hose connections.

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