Ace Cafe: I have the brit style exhaust, did the k&n filtyer modification...What did u end up with for your pilot, main jet and where did u put your needle position..Just curious on your setup..pls advise..cheers
I use the 28mm Mikarb.
I can't remember the pilot jet size, off the top of my head.
The main jet is a 125.
And I have my needle all the way up in the richest position, in the bottom groove.
And I still have an occasional slight spit at about 1/4 throttle, or slightly less, if it's not really well warmed up.
I have ordered a richer throttle slide, but they are on back order now.
In the meantime, I judiciously re-tapered the needle at just the right spot to improve the mixture right at the problem area. I have some experience doing this from racing, and I don't normally recommend doing it, but I needed to get this handled while i'm waiting for the richer slide, and it seems to have done the trick.
I have the K&N cone-shaped filter on there, and I'm running a cold plug(BR9ES) with no problems. There is no pinging at all, and the plug looks good on the chops.
I have the BB Mk3 ignition.
My elevation is about 900' above sea level.
Starts up well on the 1st or 2nd kick. Idles nice after a minute or 2 of warming up, but needs a little babysitting on the throttle at first. Enrichment lever needs to come off within 30 seconds or it starts to get loaded up.
Bike runs real good all the way up to the top, although it is probably a touch rich on the large throttle openings. Thaks ok with me. I prefer a little rich at WFO.