IKRA BT 4344 Mode D'emploi page 29

TROUBLESHOOTING GUIDE (Tabulated Overview)
Symptom
1. FAILURE TO START
Fuel system not o.k.
Fuel not o.k.
Spark plug
High-voltage wire not o.k.
Compression too low
Compression o.k.
2. LOW OUTPUT
Misfiring when accelerating
Transparent exhaust gases,
carburettor spits/splutters
Compression too low
Engine is leaking
Leaky spots at the ends of the
crankshaft
3. ENGINE RUNNING UNSTABLE
Knocking sounds in engine
Metallic knocking sound
Engine misfires
4. ENGINE SUDDENLY STOPS
Possible cause
- No fuel in tank
- Fuel filter clogged
- Fuel is not clean
- Fuel contains water
- Too much fuel in cylinder
- Wrong fuel mixture
- Spark plug fouled by oily deposits
- Insulation defective
- Spark gap not correct
- High-voltage wire broken or loose
- Loose coil
- Piston ring worn
- Piston ring broken
- Deposits on piston ring
- Loose spark plug
- Leaking joint between
cylinder and crankcase
- Connection between high-voltage
wire and spark plug not o.k.
- Stop switch defective or
short circuit at switch
- Fuel filter clogged, lack of fuel
- Muffler fouled with oily deposits
- Piston, piston ring, cylinder worn
- Joint between cylinder and crankcase
leaky
- Seal defective
- Engine overheats
- Combustion chamber fouled by oily
deposits
- Piston, piston ring, cylinder worn
- Piston pin, piston worn
- Crankshaft bearing worn
- Engine overheats
- Combustion chamber fouled by
oily deposits
- Improper petrol type
- Fuel contains water
- Wrong spark gap
- Wrong contact breaker gap
- Tank is empty
- Spark plug fouled with oily deposits
/ short circuit
- Spark plug cap is loose
GB-12
Remedy
- Refuel
- Clean fuel filter
- Replace fuel
- Replace fuel
- Remove, clean + dry spark plug
- Replace by correct mixture
- Clean spark plug
- Replace spark plug
- Adjust spark gap (0.6-0.7mm)
- Replace or fix
- Fix
- Replace
- Replace
- Eliminate
- Tighten plug
- Repair
- Tightly attach spark plug cap
- Repair or replace
- Clean fuel filter and fuel line; adjust carburettor
- Remove oily deposits
- Replace piston, piston ring
- Repair
- Replace seal
- Do not use the device at high speeds and
loads for a longer time
- Clean combustion chamber
- Replace piston, piston ring
- Replace piston pin, piston
- Replace bearing
- Do not use the device at high speeds
and loads for a longer time
- Clean combustion chamber
- Use petrol with correct octane value
- Replace fuel
- Adjust spark gap (0.6-0.7mm)
- Adjust contact gap (0.3-0.4mm)
- Refuel
- Clean spark plug
- Attach cap