Troubleshooting; Engine Won’t Start Or Is Hard To Start - DAELIM Roadwin R Service Manual

21. TROUBLESHOOTING

ENGINE WON'T START
OR IS HARD TO START
ENGINE LACKS POWER
POOR PERFORMANCE
(AT LOW AND IDLE SPEED)
POOR PERFORMANCE
(AT HIGH SPEED)
ENGINE WON'T START OR IS HARD TO START
INSPECTION
1. Check fuel flow to carburetor.
Fuel is supplied
2. Check the spark plug.
Good spark
3. Test cylinder compression.
Compression normal
4. Start by following normal
procedure.
Engine does not start.
5. Remove and inspect spark plug.
Dry plug
21-1
POOR HANDLING
21-2
POOR FRONT/REAR SUSPENSION
PERFORMANCE
21-3
FUEL GAUGE
21-4
Fuel not supplied
to the carburetor
Weak or no
spark
Low compression
Engine starts
but stops.
Wet plug
6. Close the choke and start
engine again.
CAUSE OF TROUBLE
Fuel tank empty.
Clogged fuel tube or fuel filter.
Sticking float valve.
Clogged fuel tank cap hole.
Faulty spark plug.
Contaminated spark plug.
Disconnected or shorted high tension wires.
Faulty pulse generator.
Faulty main switch.
Low speed of starter crank.
Incorrect valve clearance.
Faulty valve seat.
Worn cylinder and piston rings.
Seized valve.
Improper valve timing.
Improper chock valve operation.
Improper chock cable free play.
Carburetor incorrectly adjusted.
Improper ignition timing.
Fuel contaminated.
Lean fuel mixture.
Carburetor flooded.
Throttle valve open.
Choke closed.
Air cleaner dirty.
Rich fuel mixture.
22-4
22-5
22-5
21-1