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Thanks for all of the tips. I ended up cleaning my carbs not to much Crud in there. I switched out plugs seemed to help a bit but still sputtering So i backed off the fuel screw was running a bit rich seemed to fix the problem! Steve:thumbsup:

Alright well I cleaned my carbs and all of the jets, zi took my gas cap apart and cleaned everything the vent holes had some rust. I cleaned the plugs seemed a little rich so i backed off the fuel screw. Took it out runs much better there is a bit of a sputter every once in a while at 1/4...

Well I raised my needle position one slot and it seemed to help a lot the plugs are a bit rich. So I need to get some new plugs and reset the mix screw then if that doesn't help then I am just gonna clean the hell out of my jets and carbs. Thanks for the suggestions everyone! :thumbsup:

Hello Everyone, So I own a 1975 XS 650 and I have new mikuni Vm34's that have been rejetted I have basically rebuilt everything on it. Its been running great I have been ripping around on it for 2 months about 3 to 4 times a week. I took a 30 mile ride with some friends and we were getting on...

Alright So I got my Vm34's on my 75 XS 650 and finally got my jetting down runs great so much faster more power! I do have an idle screw issue on the left carb, when ever I unscrew the idle screw there is absolutely:yikes: no change in idle, I even took it all the way out and no change. I know...

Also I have a 1975 XS650

Hi Everyone, SO I bought some new Mikuni VM34's got them on my bike started up first try runs pretty well except at full throttle get a little choppy I expect my mains need to be a bit bigger? Here is what I re-jetted to what are everyones thoughts on the stock needle jet with the Mikunis...

I have a quick question here. I just bought some Mikuni VM34's and I also got some aluminum intake manifolds. I have always used the rubber ones but got tired of swapping them out so I up graded. On the rubber ones there is always a gasket between the intake boot and the intake valve on the...

Hello, So I have been a bit perplexed I have been riding my bike around for the last few months and its running great. I rode my bike to work today and came out to go home and the battery is dead ( this same thing happened about a month ago). I am positive I didn't leave the ignition switch...

So I just have a fairly quick question. I own a 75 xs 650 I am running stock carbs (mikuni bs 38s) I just bought some new mikuni vm34. I am wondering if my current manifold intake boots will fit on the vm 34s. I just got those boots last season they are pretty new and holy shit manifold intake...

come to think of it I did mess with my idle screw on each carb just to kind of synch them up by ear

So I have a question here I own a 75 XS 650 and the front end use to always shake at like a stoplight pretty normal for these bikes. I just noticed today that it doesn't do that anymore ( which is nice cause my brakes use to rattle a lot) so now there is really no shake at the front end what...

Hey all! So I have a 75 Xs650 and I need to get new carbs these things are on their last legs and this year I'm just gonna get new ones. Seems like Mikes XS sells a lot of really cheap parts does any one know where to get a good set of affordable carbs for my XS?:thumbsup:

I thought of that checked the plugs and they look good plus they are only a few weeks old. I tested the light on my buddies bike and it doesn't work on his either so I bought a bum timing light! Damn you Sears!!!

Its a brand new battery

So I've been checking the timing on my bike and the timing light isn't working. I know that it actually works as it was flickering for a second and I used it last week. It would only turn on at a higher idle so I set my timing that way seems fine. I do want to recheck it and I tried and the damn...

I did however clean all the posts on the advance unit and re greased them and it still didn't snap back so i clipped the springs I only clipped about a half a spring

No I didn't but I rebuilt the engine last year and I did lube it then. I haven't been riding it much.

I have a 1975 XS 650 and I saw a post on here about advance springs. There was a video showing how the the unit should snap back mine did not snap back. So I took off the springs and the weights cleaned everything then I clipped the springs put everything back together and it snaps back as it...

So I just checked my advance and it doesn't snap back like yours does. I am assuming that my springs are bad. What are the effects if this doesn't snap back into place? My bike seems to be running fine