bj8 carburetor explosions

[Jose_Miguel_Mahave]

Hello,
when I start my bj8 in cold, and before it starts to run smoothly, when I accelerate some of the firing seems to happen in the carburetor, producing small explosions. ¿possible causes and fix?

 

[MarkA]

Hi Jose,

If your chokes are working correctly, then it sounds like you may have an timing or mixture problem. When the engine is cold, it needs a richer mixture and a little more advance to run smoothly. If the distributor is not correctly set or the carbs are running a little on the lean side, you will get backfiring when the engine is cold. Check that your timing is set correctly and your carb mixtures are correct.

Mark