- 20 -
2. If the bike is used often perform this check more often.
3. Change seasonally.
Simple trouble shooting
Trouble
phenomenon
primary reason
Solution
Spark plug wear
Change/check
Ignition coil wire
Change/check
CDI
Change/check
Blown fuse
Change/check
Spark plug
no spark
Emergency switch on
Switch to off
Spark plug gap too small or big
Adjust
Spark plug burned
Change
Spark plug is corroded
Clean off
The spark
is weak
Weak ground
Clean connections
No fuel
Refuel
Air gap on gas cap stopped up clean
fuel pump worn
Change
Gas line or filter clogged
Change or clean
air filter stop up
Clean or change
THE
ENGINE
CAN NOT
START
No fuel
mixed air in
cylinder
Intake manifold broken
Check and replace
- 21 -
Spark plug seat leak
Tighten plug
Cylinder cover leak
Change head gasket
Valves out of adjustment
adjust
The piston-rings or the cylinder
block worn seriously
change them
The
cylinder
compression
strength low
The piston-ring is broken
change piston-ring
Trouble
phenomenon
Trouble reason
Solution
The octane value of the fuel is too low
Change fuel (premium only!!)
Gas line pinched or stopped up
Clean and check fuel line
Ignition time is too early or too late
Check wires and change CDI
Spark too weak
Check ignition and plug
Mixed air too dense or rich
Clean adjust carburetor
Engine leak
Check
Muffler stop up
Replace
Belt worn
Change
The automatic clutch rollers wearing
Change
The vehicle
is unable to
accelerate
well
performance
is bad
clutch worn
Change
The
electricity
does not
Starter relay wear
Change
