Hey all, had a problem all summer with my 99 EVO backfiring through the carb. Wouldn't do it often maybe every 3'rd to 4'th time I rode it and only when taking off from a light, just a quick fart. Now that the snow is here it's time to adress it before I put her to bed for the winter. It has a stage 2 done to it and as far as I know the stock carb. Where do I start? Any help is appreciated

 

Too lean at idle.

 

Thanks doc, much appreciated

 

Also check for an intake manifold leak, but too lean is what causes that backfire.

Where The Hell is Edmonton? I used to have that shirt.