jets

Got a 1975 XS 650 with mikuni carbs that has been setting for 16 years. Rebuilt carbs but it is running WAY too rich. I live at 7000 ft and will be riding the bike from 5000 ft. to 100000 ft. when I go over mountain passes. Does anybody have a suggestion on what size main Jets I need...

Ive been trying to find a jet kit for my bar I carbs so i could try a bunch of different jets to get my bike running right. Its very rich at the moment and i dont want to pay 10 bucks for every single jet id like to test

So after getting an 1980 XS650 last year that had a lost title and a plethora of issues, I am finally on the road this summer and fall. So far its been an awesome bike but I am finding that my carbs may need a bit of an upgrade / adjustment. I have the BS34's with pod filters and a 2-1 exhaust...

1978 XS650 with pod filters, straight pipes and bs38 Mikuni's. Just replaced pilot jets from stock 27.5 to 30, main jets from 135 to 140, upped the clip on the jet needle to the 2nd slot from the top, have the mixture screw out 2.25-2.5 turns and had the entire carb sonic bath cleaned. Still...

hi all, got a needle jet from mikesxs but it has no markings on it, so do I have to trust that I received the correct one or is there a way I can make sure it's what I need, can I measure it somehow? I don't get how there is no size stamped on it.

whats up guys as some of u know been trying to get my bike up and running in proper condition I got the timing down it still needs some loving tho waiting for my light to come in so while doing that figured I go in the carbs and figure out why I have basically no idle. First I took left carb...

okay so ive got the pwk carbs. Was wondering where i can get smaller needle jet and if anyone knew what the stock size is for the pwk(32) The problem im having is my bike runs to rich. If i snap the throttle open from idle it almost stalls out so im going to buy main jets and wanted to get...

I just bought it. Its a kickstart and its a custom hard tail. Cleaned carbs cleaned jets finally got it to a good idle changed both spark plugs also. It idles fine now but everytime i go to give it gas it sputters and backfires and such. I cant find a mark of what carbs it has but i think they...

Okay, so i have a 79 special with the bs38s pamco with E advancer and high output coil. Xs performance pods and commando megaphone mufflers with the removable allen bolts. Question is ive gone from stock 27.5 pilots to #35, and stock 135 mains to 142.5. Am i still due to go up more? As it seems...

Alright, I'm no carb expert and I should have documented better. I took these bs34's apart from a 1982 to clean and too much time passed before reassembly. The pilot & main seem to be stock, and I believe I have installed them back in the right place, but I can't figure out what jet this middle...

Mikes in canada doesnt have real ones.....jets r us sucks...its not 1986, i dont want to send you a money order....any other suppliers?

I am about to swap jets and need some guidance. I have had some great help from the guys, especially 5twins on the carburettors. I thought I would start this thread so others can see what is going on. background - I want to swap the main and pilot jets from my 76/77 BS38s with the main and...

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...