5
发动机
5- 52
5.11 Fault judgment
5.11.1 Engine can't start or start difficult…………………………………………………5-50
5.11.2 Engine power is Insufficient……………………………………………………5-51
5.11.3 Poor performance at low engine speed or idle speed………………………………5-52
5.11.4 Engine performance is poor at high speeds…………………………………………5-53
5.11.5 The engine has abnormal noise……………………………………………………5-54
5.11.1
Engine can't start or start hard
Check direction
1
、
Check if the fuel reaches the carburetor
→
does not
enter the carburetor
→
has entered the carburetor
2
、
Remove the spark plug and check the spark
→
the spark
is weak or completely no fire
→
the spark is normal
1
、
Check cylinder pressure
→
pressure is too low
→
pressure is normal
2
、
Restart the engine
→
the engine can ignite but still
can't start
→
the engine does not ignite
possible reason
1. No fuel in the fuel tank
2, the oil switch is blocked
3, tubing blockage
4, carburetor float needle
card jam
possible reason
1. The spark plug is damaged
or not cleaned
2, the magnetic motor failure
3, ignition switch failure
4, sensor failure
5, igniter failure
6, ignition coil failure
7, high voltage cable failure
8, the power circuit has a
short circuit or open circuit
possible reason
1. The valve clearance is too
small or has no gap
2, the valve guide Xuan bent
3. The cylinder seat and the
valve are not well matched.
4, cylinder and piston ring
wear
5, the cylinder head gasket is
not sealed well
6, the assembly is not in
place
7, the timing of the valve is
not correct
possible reason
Summary of Contents for AU200
Page 1: ...1 KAYO MOTO AU200 Maintenance Manual...
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Page 138: ...10 Appendix...
