DAELIM Roadwin R Service Manual - page 284

21-3

TROUBLESHOOTING

POOR PERFORMANCE (AT LOW AND IDLE SPEED)

INSPECTION

CAUSE OF TROUBLE

Not contaminated or not

discolored.

Contaminated or

discolored

Lean fuel mixture.

Using  spark  plug  with  on  incorrect  heat

range.

9. Check the spark plug.

Level normal

Level low or high

Oil level too high.

Oil level too low.

Contaminated oil.

10. Check oil level.

Valve train lubricated properly.

Valve train lubricated

improperly.

Oil level too low.

Contaminated oil.

Faulty oil pump.

Clogged oil passage.

11. Remove  cylinder  head

30mm hole cap, and inspect

lubrication.

Not overheated.

Overheated

Excessive  carbon  build-up  in  combustion

chamber.

Poor quality fuel being used.

Lean fuel mixture.

Clutch slipping.

12. Check for engine overheating.

Correct

Incorrect

Incorrect valve clearance.

Faulty ECU unit.

Faulty pulse generator.

1. Check  ignition  timing  and

valve clearance.

No leak

Leaking

Faulty insulator O-ring.

Loose throttlebody.

2. Check inlet pipe for leakage.

Sparks normal.

Weak or intermittent

sparks

Carbon  depasited  on  spark  plug  or  spark

plug contaminated.

3. Check sparks.

Engine does not knocking.

Engine knocking

Worn piston ring and cylinder.

Lean fuel mixture.

Excessive  carbon  build-up  in  cambustion

chamber.

Incorrect ignition timing.

13. Accelerate  or  run  at  high

speed.

INSPECTION

CAUSE OF TROUBLE