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post #1 of (permalink) Old 11-22-2000, 09:11 PM
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Backfiring!!!!!

My Zook backfires a fair bit, yet there doesnt seem to be anything out of place. What could the prob be? I have a carby model, not the fuel injected model. The carby was recently totally flushed out, and since then, it backfires quite often.

Any suggestions?






Dad, what does this thing do???.....Ooops!
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post #2 of (permalink) Old 11-22-2000, 09:50 PM
 
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Re: Backfiring!!!!!

My 87 does the same thing.It could be a bad egr valve or the timing belt could need replacing.Mine backfires on decceleration,not loud but enough to be bothersome[img]/wwwthreads_images/icons/tongue.gif[/img]

No shame in HIS name[img]/wwwthreads_images/icons/wink.gif[/img].
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post #3 of (permalink) Old 11-22-2000, 10:34 PM
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Re: Backfiring!!!!!

The exhaust dounut could be burned up. It's not that much louder and would let the exhaust system suck in fresh air on decellaration which will let unburned gases ignite (explode)

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post #4 of (permalink) Old 11-22-2000, 10:51 PM
 
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Re: Backfiring!!!!!

tevin21-my first thought if you are running a stock carb
setup would be egr valve check for vacuum leaks-leaks at
the gasket etc. both my hayes and suzuki manuals give
testing procedures.

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post #5 of (permalink) Old 11-23-2000, 01:13 AM
 
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Re: Backfiring!!!!!

The choke may not be opening fully when the engine is warm.

-Farther
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