TGB BLADE 250 Service Manual page 22

G. Loss power
Check and adjustment
Raise wheels off ground and
spin by hand
Spin freely
Check tire pressure
Normal
Accelerate lightly, engine speed
can be increase
Normal
Check ignition timing
Normal
Test cylinder compression
Normal
Check carburetor
Normal
Check spark plug
Normal
Check for engine overheating
Normal
Accelerate or run at high speed
Normal
To this chapter contents
Fault condition
Abnormal
Abnormal
Abnormal
Abnormal
Abnormal
Clogged
Fouled or discolored
Overheating
Knocks
1. GENERAL INFORMATION
Probable causes
● Brake dragging
●
Drive chain too tight
●
Damaged wheel bearing
●
Wheel bearing needs lubrication
● Punctured tire
●
Faulty tire valve
●
Fuel / air mixture ratio too rich or lean
●
Clogged in air cleaner
●
Clogged in muffler
●
Restricted fuel flow
●
Clogged fuel tank cap breather hole
●
Faulty pulse generator
●
Faulty CDI unit
●
Leaking head gasket
●
Worn cylinder and piston rings
● Clean
●
Clean the spark plug
●
Spark plug is incorrect heat range
●
Excessive carbon deposited
in combustion chamber
●
Wrong type of fuel
●
Fuel / air mixture ratio is lean
●
Use of poor quality fuel
●
worn piston and cylinder
●
Fuel / air mixture ratio is lean
●
Wrong type of fuel
●
Ignition timing too advanced
●
Excessive carbon deposited
in combustion chamber
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