2.1.10 lubrication
Lubrication of engine
Check the oil level, start the engine and let it running
for a few minutes to make it heated and lubricated completely,
then misfire. Unplug the dip stick to do cleaning and dip it
into the oil case again. Then unplug the dip stick and look
whether oil level is lower than the indicator. See figure 2-20.
Note: Ensure that the engine is landed by both four
wheels in flat ground.
Figure 2-20
2.1.11 Inspection of cylinder head
1. Check whether the spark plug and valve seat is cracked and
whether the cylinder head is out of shape. Examine the flatness
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