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 Post subject: Help carbs back firing
PostPosted: Fri Feb 22, 2013 2:31 am 

Joined: Tue Dec 18, 2012 4:58 pm
Posts: 2
Hi there is done had a bit of a search but can't find anything that helps me out. I recently purchased a toyota 4k and dropped it in my starlet. I'm having a problem. The car starts and idles fine but if I just step on the gas it's just backfires out the carby and exhaust. I can rev it up if I slowly take the revs up, but as soon as I try rev it up quickly it dies. I've checked timing and that's good. Any help appreciated.

Cheers


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 Post subject: Re: Help carbs back firing
PostPosted: Fri Feb 22, 2013 4:48 pm 

Joined: Tue Aug 16, 2011 12:59 pm
Posts: 80
Location: San Bernardino, CA
check the jets on the carb. might be starving for gas. bad fuel pump maybe psi might be low. put a psi gauge on the line to see if the fuel pump is working properly. Could it be the original pump is not pushing enough for the 4k.


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 Post subject: Re: Help carbs back firing
PostPosted: Fri Feb 22, 2013 11:31 pm 
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Joined: Wed May 18, 2011 5:09 pm
Posts: 160
Location: Netherlands
Check ignition timing, and vacuum timing advance system.

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Carina TA12, Starlet EP70(sold) and EP71, Mitsubishi Lancer CS9W


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