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ENGINE PROBLEM ISOLATION CHARTS
ENGINE DOES NOT START AND NO SPARK:~
1. Switch not on or malfunction
1. Turn switch on or replace
2. Spark plugs fouled oiled or damaged
2. Replace spark plugs
3. Plug cap damaged, leaking or shorted
3. Replace plug cap
4. High tension wires loose, grounded or
4. Service high tension wires / coils
shorted
5. C.D unit faulty
5. Replace
ENGINE DOES NOT START – NO FUEL GETTING THROUGH:~
1. Fuel tank empty
1. Fill tank with fuel
2. Cracked, broken or pinched fuel line
2. Replace fuel line
3. Fuel filter blocked
3. Replace fuel filter
4. Obstructed or damaged fuel pump
4. Clean or replace fuel pump
5. Carburettor jets plugged or fuel pump
5. Service the carburettor or fuel
malfunctioning
pump
6. Impulse line is cracked, broken or
6. Replace the impulse line
pinched
7. Incorrect carb adjustment
7. Adjust carb
ENGINE STOPS GRADUALLY AFTER RUNNING:~
1. Obstruction in fuel tank or fuel filter
1. Clean or replace fuel filter
2. Fuel line obstructed or pinched
2. Remove obstruction, clear pinch
in line
3. Damaged head gasket
3. Replace head gasket
ENGINE DOES NOT IDLE OR IDLE R.P.M FLUCTUATES:~
1. Air screw adjusted incorrectly
1. Adjust air screw
2. Idle screw adjusted incorrectly
2. Adjust idle screw
3. Defective fuel pump / valve
3. Service the fuel pump and check valve
4. Impulse line cracked, kinked or broken
4. Replace or repair impulse line
5. Oil seals leaking
5. Replace oil seals
6. Air leak (pressure check engine)
6. Disassemble and replace worn, defective
or damaged parts
7. Choke stuck
7. Strip and clean out choke