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BBT-BC-36CCBH, BBT-BC-36CCDH
1. Failure to Start
CHECK
PROBABLE CAUSES
ACTION
Cylinder
Compress
Pressure
Normal
Spark Plug
Spark normal
Fuel System abnormality
There is no fuel in tank
Fuel filter obstruction
Add fuel in tank
Clean fuel filter
Fuel System
abnormality
Fuel
Fuel is too dirty
There is water in fuel
There is too much fuel in
cylinder
Mixture ratio is incorrect
Replace fuel
Replace fuel
Tear down spark plug and dry it
Mixture proportion
Fuel System
Normal
High Voltage
Wire Spark
Normal
Spark plug
Spark plug fouled with oily
deposits
Spark plug insulation damage
Spark plug gap is too large or
small
Clean the oily deposits
Replace spark plug
Adjust spark plug gap 0.6-0.7mm
High Voltage
Wire Spark Abnormality
High voltage wire breach or
break off
Coil looseness
Replace or tighten
Tighten
Fuel
System
Normal
Ignition
System
Normal
Compress is shortage
Piston ring attrite
Piston ring is broken
Piston ring cementation
Spark plug looseness
Conjoint surface of the cylinder
and crankcase leak
Replace with new
Replace
Eliminate
Tighten
Eliminate
Compress Normal
High voltage wire and spark
plug contact bad
Stop switch failure or short
circuit
Tighten the spark plug cap
Repair or replace
TROUBLESHOOTING
2. Low Output
CHECK
PROBABLE CAUSES
ACTION
Flameout when speedup
The smoke is thin
Fuel filter obstruct, fall short of fuel
Muffler fouled with oily deposits
Clean fuel filter, adjust carburettor
Clean the oily deposits
Compression shortage
Piston, piston ring, cylinder attrite
Replace piston, piston ring
Engine leak
Conjoint surface of the cylinder and crankcase
leak
Repair
Rocket cover leak
The seal is bad
Replace seal
Engine overheats burning, room fouled with
oily deposits
Avoid using for long periods of time, high speed
and heavy load, clean the oily deposits
3. Engine Running Unstable
CHECK
PROBABLE CAUSES
ACTION
There is a knock sound in engine
Piston, piston ring, cylinder attrite
Piston pin, piston attrite
Bearing of crankshaft attrite
Replace piston, piston ring
Replace piston pin, piston
Replace bearing
There is a metal knock sound
Engine overheats
Burning, room fouled with oily deposits
Fuel brand is unfit
Avoid using for long periods of time or high
speed and heavy load
Clean the oily deposits
Replace require branded octane
Engine ignition break off
There is water in fuel
Spark plug gap is wrong
Coil gap is wrong
Replace fuel
Adjust spark gap 0.6-0.7mm
Adjust coil gap 0.3-0.4mm
4. The Engine Suddenly Stopped
PROBABLE CAUSES
ACTION
Fuel is empty
Spark plug fouled with oily deposits and short circuit
High voltage wire disconnected off
Add fuel
Clean the oily deposits
Connect