12. TROUBLE SHOOTING
12.1 Engine does not start
Check Fuel Flow to Carburetor
O.K.
Test Spark
O.K.
Test Cylinder Compression
O.K.
Start Engine
Engine
does not
start
Remove and Inspect Spark Plug
Possible Problem Areas
N/G
N/G
Weak or No
Spark
N/G
Low
Compression
N/G
Wet Plug
12-1
TROUBLE SHOOTING
♦ No Fuel in Fuel Tank
♦ Clogged Float Valve
♦ Clogged Fuel Tank Cap Breather Hose
♦ Clogged Fuel Line
♦ Faulty Spark Plug
♦ Fouled Spark Plug
♦ Faulty C.D.I. Unit
♦ Faulty Engine stop Switch
♦ Poor connection, Broken or Shorted Wire
♦ Broken or Shorted Ignition Coil
♦ Broken or Shorted Spark Plug Wire
♦ Faulty Pulse Generator
♦ Worn Cylinder
♦ Worn / Damaged piston Rings
♦ Damaged Piston
♦ Leaking Cylinder Head Gasket
♦ Auto Choke Off or Damaged
♦ Auto Choke Power Wire not connected
♦ Improperly Adjusted Air Screw
♦ Improper Ignition Timing Adjustment
♦ Fuel / Air mixture ratio is too lean
♦ Carburetor Flooded
♦ Improperly Adjusted Air Screw
♦ Fuel / Air mixture ration to rich
♦ Auto Choke stuck or damaged
♦ Air Cleaner Dirty