tuning

Hi all, Finally got my XS650 roadster finished, legal and on the road. Starts pretty well, some backfiring low to mid range. I am using almost open pipes and velocity stacks with mesh but no filter. I had to go up two sizes on the pilots to get it to start and run. I just need a bit of...

Was reading a website here http://www.jetlink.net/~okayfine/SU/airfuel.html where a fellow uses an air/fuel gauge to dial in his automotive carbs. Has anyone ever tried to use something like this to dial in their bike? Something like Or this

Hi, need suggestions for ballpark jet sizes. 81, BS 34's with xs performance 750 big bore, 277 rephased crank and cam, pamcopete ignition, emgo pod filters, 1 1/2" headers with prforated baffles, no muffler. on inspection my carb jets were not stock,(changed by some previous owner) 140 main, 135...

So where I live in Calgary you need to do an "out of province" inspection when you bring a new vehicle into the province. I brought my bike in for the inspection and everything is looking good except it won't pass the inspection because it's running rough and back firing. The predicament is that...

Hey guys, So I've rebuilt, rewired, and reassembled this 81 650H over the past three months. I can get it to fire up, but it won't stay running. Back story - I bought the bike in pieces from a guy who was running chopped straight pipes and basically wire mesh as carb filters. Here's more...

Well after getting three sets of type I BS Mikuni's back from Oldskoolcarbs, now comes the installation/tuning of same to the bikes involved. Re-reading favorite "guides" before hand seems to be an increasingly advisable thing for old geezer bikers like me to do. From the archives came this...