Generic Race 50, Service Manual

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X. Lubrication system
Preparation data -----------10.1
Fault diagnosis ------------10.2
Oil pump -------------------10.3
10.1 Preparation data
Matters needing attention in operation
Worm and worm wheel should run flexibly without block and one side locking meanwhile the worm wheel has a
little leap axially, “O” ring in oil pump must not have edge-cutting.
No oil leakage comes from the plugs in oil pump, the sealing ring should be in good order.
Bolt 3 should be dismounted during the engine trial operation after assembling, retighten it firmly till to the oil
flowing out to be seen.
Function of the lubrication system
：
supplying lubricating oil to the wear surface to reduce part wear by turning
dry friction between surfaces into liquid friction between lubricating oil particles
；
cooling high-load parts
；
absorbing impact from the bearing and other parts and reducing noises
；
increasing air tightness between the piston
ring and cylinder wall
；
cleaning and carrying away impurities on part surfaces.
Preparation reference
Item Standard Permitted limit
when changing the oil
0.1L /
machine oil
capacity when dismantling
0.11L /