12. Troubleshooting
With Air current
Faulty fuel enrichment device
No air current
Clogged carburetor
Poor Engine Performance in Hi-speed Range or Slow Speed Rising
No rise of Clogged air filter
Engine speed Clogged fuel hose and filter
Clogged fuel tank cap breather hole
Clogged muffler
Engine speed rises
Incorrect Faulty pickup coil
Faulty CDI unit
Correct
Low or no Worn Cylinder and piston ring
Compression
Pressure Faulty cylinder gasket
Normal compression pressure
Clogged
Clogged carburetor
Not clogged
Stained damage and color changed
Spark plug stained and damaged
Improper spark plug heat value
Normal Spark Plug
Overheated Faulty mixture gas
Faulty fuel
Carbon deposit in combustion Chamber
Too much advanced ignition timing
Overheated
Cylinder knock Carbon deposit in combustion chamber
No cylinder knock
Clutch slip
1
2-3
Connect fuel enrichment
device wire lead with
battery for 5 Minutes.
Connect ethylene pipe
with fuel increment loop
and blow.
Run vehicle at high engine speed
(on an flat asphalt road)
Check ignition timing
Measure compression pressure
with pressure meter
Check carburetor
Check spark plug
Check the engine for
overheating
Accelerate or continuous
high-speed operation