3. INSPECTION/ADJUSTMENT ATV 50
CYLINDER COMPRESSION
Warm up the engine before compression
test.
Remove the spark plug.
Insert a compression gauge.
Open the throttle valve fully and push the
starter button to test the compression.
Compression:
1200kPa (12kgf/cm,170psi)
If the compression is low, check for the
following:
- Leaky valves
- Valve clearance too small
Compression Gauge
- Leaking cylinder head gasket
- Worn piston rings
- Worn piston/cylinder
If the compression is high, it indicates that
carbon deposits have accumulated on the
combustion chamber and the piston head.
Oil Check Bolt
FINAL REDUCTION GEAR OIL MXU 50/MX'ER 50
MXU 50/MX'ER 50: Gear Oil Lever
The gear oil level shall be at the oil check
bolt hole. If the oil level is low, add the
specified oil to the proper level.
Specified Gear Oil: SAE10W90#
Install and tighten the oil check bolt.
Torque: 1.3 kgf-m (13 N-m, 9.4 lbf-ft)
Start the engine and check for oil leaks.
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