Carb Adjusting Aisin

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Jan 22, 2003
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Kansastitty
The only real "adjustments" are the idle speed, the fast idle speed (when the choke is pulled out) and the idle fuel mixture.
What symptoms are you having?


Ed
 
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Apr 28, 2004
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hes getting mad backfiring. were talkin while he was in the cab rev-ing the engine up to about 2k, there were flames lickin out of that baby.... is it possible that a bad valve or spring or lifter could not be closing therefore letting the explosion out of the engine back into the carb?
 
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Kansastitty
If backfiring outa the carb.....to lean....carb plugged with crud=rebuild.
If backfiring outa the exhaust.....running waaaay too rich =carb rebuild. Well maybe float stuck, needle and seat bad, but rebuild anyway.
No adjustment for either, sorry.
Ed
 
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yea its backfiring...but this is a new carb. there is nothing wrong with it...do you think the backfiring out of the intake and exhaust could just be because the carb is out of adjustment?
 

65swb45

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More often than not when there is backfiring out of the carb, the carb is the VICTIM, not the culprit.

Check timing and compression [for valve adjustment]
 
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Apr 18, 2005
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The compressiong is good just did a check little earlier and the timing was just adjusted by a mechanic. so they should be ok. Do you think it could simply be the cvarb and it not being adjusted right??
 

PabloCruise

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andrewfarmer said:
Never assume because 'it was done by a mechanic' that's it's been done right...
Right! Bust out the timing light and check it yourself...

Have you set the valve lash recently?

How do you know this is a new carb - and how can you say there is nothing wrong with it - details please...
 
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