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GPX MOTO
ENGINE TIGHTENING TORQUE TABLE
The engine tightening torque table is as follows:
No
Applicable parts
1
Cylinder head nut M8
2
Cylinder head boltM6
3
Timing sprocket
4
Clutch tightening nut
5
Magneto rotor bolt
6
Valve cover
7
box bolt
TROUBLESHOOTING
If the engine wants to be operated normally, it should meet the following four requirements:
1. Good fuel: There is a certain ratio of combustible mixture in the cylinder.
2. Good spark: The spark plug can emit a strong spark at the specified time.
3. Enough compression: There is enough compression pressure in the cylinder.
4. Valve timing: correct valve opening time.
After the engine malfunctions, you can focus on the above four aspects to start, check, analyse the
cause of the malfunction, and eliminate it
FAULTS
The engine cannot be
started or difficult to
start
TORQUE VALUE
28-32N.m
10-15N.m
10-15N.m
40-50N.m
65-71N.m
12-18N.m
10-15N.m
Inspection Method
Check whether the
fuel flows into the
carburettor
Remove the spark
plug to test the spark
Results
Fuel does not flow
into the
carburettor
Fuel flows into the
carburettor
Weak sparks or no
sparks at all
Good sparks
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Possible Cause
No gasoline in the
fuel tank
Blocked tubing from
the fuel tank to the
Carburettor
The float in the
Carburettor is stuck
The vent on the fuel
tank cap is blocked
Spark plug failure
The spark plug is not
clean
Electronic ignition is
malfunctioning
The magneto is faulty
Bad wiring, broken
High-voltage cable is
open or short-
circuited
Ignition coil is open
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