RX7Club.com - Mazda RX7 Forum - Popping FAJS 48 DCOE (Weber Knockoff) CARB

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DiamJim

08-19-20 01:21 PM

Popping FAJS 48 DCOE (Weber Knockoff) CARB

FAJS 48 DCOE Side draft (Weber Knockoff) carburetor on 1985 GSL 12A 5 speed manual that pops as I drive along. It does the popping less when the motor is cold. When I accelerate, the popping occurs and the carburetor spits gas out through the air horns. Any thoughts on what is wrong with carburetor?

t_g_farrell

08-19-20 02:34 PM

Back fire thru the carb makes me think its timing related.Is your dizzy loose?

DiamJim

08-19-20 06:35 PM

I will check although, I have not touched the Dizzy.

brian_skotch

08-30-20 11:24 AM

Compression test it. The only time I’ve ever seen a Weber backfire out of the air horns are when they’re blown.

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