Also available:

We remove the oil pump when overhauling the engine, when replacing the circuit and when repairing the pump itself

Also available:

If the oil leak from under the cylinder head cover could not be eliminated by tightening the cover bolts, replace its gasket

Also available:

The idle speed controller maintains the set idle speed of the engine at wide throttle during start-up, warm-up and when the load changes when auxiliary equipment is turned on