Liangzi Power UTV1000-3, Maintenance Manual

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2.PERIODIC MAINTENANCE
2
- 18
Tire thread.
When the tire groove decreases to 6 mm
(0.24 in) due to wear, replace the tire
.
ENGINE COMPRESSION PRESSURE
The compression pressure reading of a cylinder is a good indicator of its internal condition. The
decision to overhaul the cylinder is often based on results of a compression test.
Before measuring cylinder pressure, ensure installation and tightening of cylinder cap bolt
with designated torque and reasonable clearance of valve.
Standard cylinder pressure: 0.
9～
1.2Mpa
Too low cylinder pressure may cause the
following:

Excessive wear to cylinder;

Wear to piston or piston ring;

Blockage of piston ring in groove;

Close valve seat;

Damage to cylinder lining or faults of other parts
Measure engine compression pressure:
1. Warm up engine.
2. Ensure full charging of battery.
3. Remove left and right seats, gear
shift handle and engine shield
4. Dismantle spark plugs.
5. At spark plug hole, install cylinder
pressure meter.
6. Press button of start for several seconds.
Record indication of maximum cylinder
pressure.
ENGINE OIL PRESSURE
Check the engine oil pressure periodically. This will give a good indication of the condition of