Feedback Score: 3 reviews
Join Date: Sep 2004
Location: Nova Scotia, Canada
It will add power, but will not run smoother; it will run a little rougher.
Have you added any shims to the needles in the carbs? The backfiring through the carbs means it's lean.
Basic carbed engine theory:
If the engine is cold, expect it to run rough if you try to drive it without using the choke.
If it runs a little rough when cold, but runs good after it's warmed up for a few minutes, then there is no problem.
If you try to tune it so it runs smooth when cold and you don't want to use the choke, then it will be too rich when warm.
2002 698 Prairie
VFJ 11.5:1 coated pistons
FST Stage II Cams
Fundy Performance Porting, 1mm milled off heads
Custom machined stock weights
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