KAYO MOTOR AU200, Maintenance Manual

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浙江华洋赛车股份有限公司
5- 19
5.5.1 Troubleshooting
Low cylinder pressure
1
、
Valve
Valve clearance adjustment is incorrect
Valve seal is not strict
The timing of the valve is wrong.
Valve spring break
2, cylinder head
The spark plug is not tightly connected
to the cylinder head
Leakage or damage to the cylinder head
gasket
Cylinder head has cracks or blisters
3, cylinder, piston
Piston ring clearance too big or broken
The piston is cracked or damaged
The inner diameter of the cylinder is
too large or has a blisters
Exhaust has blue smoke
1.Valve guide wear
2. The oil shield is leaking or damaged.
3, cylinder head gasket leakage
4, the piston ring clearance is too big
Too much noise
1.Valve adjustment is incorrect
2. The valve is stuck or the valve spring is
broken.
3, camshaft or rocker arm wear
4, timing chain is too long
5, the timing of the gas is not correct
6. Timing chain tensioner is worn or
damaged
7, timing sprocket tooth wear
5.5.2 Disassembly of cylinder head
cover
Remove the connecting bolts that secure the
cylinder head 1
Remove the cylinder head cover 2
5.5.3 Disasembly of Rocker arm
support
Remove the cylinder head cover 2
Remove the Ab bolt fastening nut 3 , copper
washer 4 and steel washer 5
Remove the rocker support 9
Remove the rocker shaft limit plate
Insert the threaded end of the rocker with a
6mm screw
Pull out the rocker shaft 8
Note: nuts and washers cannot fall into
the crankcase when disassembling
。
6:Rocker arm
7: rocker shaft baffle bolt
10: exhaust rocker shaft
11: intake rocker shaft