Engine Run Sluggish - TGB BLADE 600 Service Manual

1. GENERAL INFORMATION
B. Engine run sluggish (Speed does not pick up, lack of power)
Check and adjustment
Try gradual acceleration and
check engine speed
Engine speed can be
increased.
Check ignition timing (Using
ignition lamp)
Ignition timing correct
Check cylinder compression
pressure (using compression
pressure gauge)
Compression pressure
correct
Check if carburetor jet is
clogged
No clogged
Remove spark plug
No foul or discoloration
Check if engine over heat
Normal
Continually drive in
acceleration or high speed
No knock
C. Engine runs sluggish (especially in low speed and idling)
1-16
Fault condition
Engine speed can not be
increased.
Incorrect ignition timing
No compression
pressure
Clogged
Fouled and discoloration
Engine overheat
Knock
Probable causes
● Air cleaner clogged
● Poor fuel supply
● Lines in fuel tank evaporation system
clogged
● Exhaust pipe clogged
● Fuel nozzle clogged in carburetor.
● Fuel nozzle clogged in carburetor.
●Malfunction of Ignition Coil
●Malfunction of AC alternator
● Cylinder & piston ring worn out
● Cylinder gasket leaked
● Sand hole in compression parts
●Valve deterioration
● Seized piston ring
● Remove foreign
●Remove dirt
●Incorrect spark plug heat range
● Piston and cylinder worn out
●Lean mixture
● Poor fuel quality
● Too much carbon deposited
in combustion chamber
● Ignition timing too advanced
● Poor circuit on the cooling system
● Too much carbon deposited in
combustion chamber
● Lean mixture
● Poor fuel quality
● Ignition timing too advanced