Stock B12 with a K&N drop in air filter jetting question.

[andrewclaycomb]

What should the fuel screws be turned out to? I'm returning my bike from a stage 1 holeshot to stock but I don't have a stock air filter so I'm leaving the K&N drop in filter in place. I have the stock mains, pilots, and needles with the stock spacer and washer in place. Stock exhaust also.

Bike is a 1997 Bandit 1200.

[Red01]

Should be about the same, maybe in 1/4-1/2 turn.
Might need to keep a shim under the needles until you put a stock paper filter back in.

[China Greg]

Pretty good advice, Red.

STOCK SETTING ON A 1997 B12, USING A STANDARD PAPER AIR-FILTER IS 3-1/2 TURNS OUT.

IMHO I have had poor luck with K&N filters on various bikes, finding a hard time getting the jetting sorted. Maybe just my clumsiness... 
 
Anyway, K&N's supposedly flow more air.. but at idle/near idle engine speeds (where the fuel-screws have the most impact), it SOULDN'T be much diffeent from stock. After that (throttle) level you may need needle shimming.

I'd try the 3-1/2 turns out setting and then work from there. 

[andrewclaycomb]

Thanks, the Clymer manual showed 1 3/4 turns out but thinking the factory had it too lean, I turned it out to 2 1/2 turns out. I finally found a way to work with the stripped out thread in the float bowl so tomorrow I should be back on course with getting the bike running right.

I'll turn it out to 3.5 and see what happens once it's running.

[PaulVS]

Might need to keep a shim under the needles until you put a stock paper filter back in.

That's the best route....  back to stock filter.