Stopping the engine
✓ Reduce engine load gradually and then reduce engine speed and let run without
load for several minutes. Switching the speed control lever to the "STOP" position
will stop the engine.
✓ Under particular conditions, when emergency stop is required, it is advisable to
loosen any connections from the high pressure fuel line or use a tow or towel
available to block the air filter inlet. The engine can also be stopped by placing
the pressure relief device in action (Fig.8).
Precautions after Engine Stop
✓ Turn off the fuel tank cock.
✓ If the engine is out of service for a long time, it is necessary to drain the cooling water by
opening the drain cock on the cylinder head. Especially in winter, the cooling water should
be drained immediately after stopping the engine to prevent subsequent cracking of the
cylinder block and other parts also due to freezing.
✓ Periodically dismantle the drain cock, clean the water passages and remove the scale.
✓ Turn the steering wheel until you can not. Then push the pressure relief lever down and
continue to rotate the steering wheel until the line marked on the steering wheel matches
the line marked on the radiator (Fig. 9), so that the intake and discharge valves are set in
the closed condition and the piston adjusted in the neutral center position in the
compression stroke to prevent any dust from entering the cylinder.
5. ENGINE ADJUSTMENT AND MAINTENANCE
It should be performed by specialized technical assistance. Your unauthorized maintenance will
not cover any warranties.
Adjusting the valve clearance
After every 500 hours of engine operation, it is necessary to readjust the valve clearance to the
specified value, which is one of the important factors to ensure normal engine operation. The
adjustment procedures are as follows:
1. Remove the headset cover.
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