Xmotos XB31 Operating Instructions Manual page 60

1.
Examine the Drive-train - Raise the wheel of the ground and spin by hand.
Does the wheel spin freely?
No - Brake dragging, improperly mounted brake pads
- Worn or damaged wheel bearings
- Bent axle
Yes
- SEE STEP 2
2.
Check the Tire Pressure - Use a tire pressure gauge to check the tire pressure of each tire
Is the tire pressure correct?
No
- Faulty tire valve
- Punctured tire and/or inner tube
Yes
- SEE STEP 3
3
. Clutch Inspection - Accelerate rapidly through first and second gears.
Does the engine speed/RPM decrease properly when you shift from first gear to second gear?
No
- Slipping clutch, adjust
- Worn out clutch discs and/or plates
- Weak clutch springs
- Contaminating additive in the engine oil
Yes
- SEE STEP 4
4.
Engine Performance Inspection - Accelerate lightly.
Does the engine speed increase?
No
- Clogged air filter
- Restricted or clogged fuel line and/or fuel filter
- Clogged muffler/spark arrester
- Choke valve is closed
- Clogged fuel tank breather hose
Yes - SEE STEP 5
5.
Spark Plug inspection - Remove the spark plug and inspect
Is the spark plug in good working condition?
No - Spark plug is not serviced frequently enough
- Incorrect spark plug heat range
- Incorrect spark plug gap
Yes - SEE STEP 6
6.
Engine Oil Inspection - Check the oil level and the condition of the oil
Is the engine oil level correct and in clean condition?
No
- Oil level too high
- Oil level too low
- Contaminated oil
Yes - SEE STEP 7
7.
Cylinder Compression Inspection - Check the cylinder compression.
Is the engine compression normal?
No - Valve stuck open/seized or improper valve timing (see your Xmotos dealer)
- Worn cylinder wall and/or piston rings (replace engine)
- Leaking or damaged cylinder head gasket (see your Xmotos dealer)
Yes - SEE STEP 8
TROUBLESHOOTING
ENGINE LACKS POWER
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