Troubleshooting - Efco BV 250 Operators Instruction Book

WARNING: Always stop unit and disconnect spark plug before performing all of the recommended
GB
remedies below except remedies that require operation of the unit.
When you have checked all the possible causes listed and you are still experiencing the problem, see your Servicing
Dealer. If you are experiencing a problem that is not listed in this chart, see your Servicing Dealer for service.
PROBLEM
Engine will not start or will
run only a few seconds after
starting.
Engine starts but will not
accelerate properly or will not
run properly at high speed.
Engine does not reach full
s p e e d a n d / o r e m i t s
excessive smoke
Engine star ts, runs and
accelerates but will not idle.
The engine starts and runs,
but the air flow is low
34
16. TROUBLESHOOTING CHART
POSSIBLE CAUSE
1. No spark
2. Flooded engine.
C a r b u r e t o r r e q u i r e s
adjustment.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburetor requires
adjustment.
Carburetor requires
adjustment.
1. Safety guard blocked
2. Impeller damaged
3. Impeller housing and
tubes blocked
SOLUTION
1. Watch for spark at spark plug tip. If
there is no spark, repeat test with a
new spark plug (CMR7A).
2. Follow procedure page 23 If engine
still fails to start, repeat procedure
with a new spark plug.
Contac t a Ser vicing Dealer for
carburetor adjustment.
1. Use fresh fuel and the correct
2-cycle oil mix.
2. C l e a n p e r i n s t r u c t i o n i n
Maintenance-Air Filter Section.
3. Contact a Servicing Dealer for
carburetor adjustment.
Contac t a Ser vicing Dealer for
carburetor adjustment.
1. Clean safety guard
2. Contact an Authorised Service
Centre
3. Clean