46
5. Carburetor
Carburetor Defective
Blocked Idle Jet
Clean Jet
Dirty Float Bowl
Clean Bowl
Low Fuel in Bowl
Adjust Bowl
Carburetor OK
Engine Overheated
Check & Replace Lubricating Oil
Air Inlet System Blocked or
Leaky
Remove Blockage or Leak
KNOCKING SOUND IN CYLINDER
Causes
Solutions
1. Engine Overheating
Check & Replace Lubricating Oil
2. Spark Plug Defective
Replace the Spark Plug
3. Ignition Timing Too Early
Adjust Ignition Timing
4. Carbon Build-up
In Cylinder
Remove Carbon Build-up
In Exhaust Pipe & Muffler
Remove Carbon Build-up