misfire

Hey Xs's dependant people i'm Lickfold 28 years young new member from Portugal and here's my project as detailed as i can so hopefully you wizards can think with me and help me achieve less wrenches and more km's ! -1972 XS2 650 - HISTORY-> It's been 3 years of a love affair... Scrapyard...

So my bike was running great the other day, but noticed some light repetitive knocking on the right side of the engine, which after inspection and talking with some friends of mine could be because I was using 87 octane and it may have been firing too early, so I'm now running 91. I'm noticing...

SOOO guys here I am again with complications. I had my 77 xs650 running fine. So, I took off the tank, rear fender, and side panels and painted them.....didn't touch the bike once in that process. I put everything back together and the timing is off this time, misfires and what not. I shut it...

Ok so I have a rephrased xs650 hhb charging system pamco ignition no battery Been fucking with this bike for 2 months and I'm ready to beat the thing with a hammer... Running b34 mikuni carbs jetted for open pipes and air pods they are clean,it is timed correctly it only starts with the throttle...

I've got 77 xs650 and it recently started acting sluggish and misfiring randomly. It only occurs during takeoff in first and second gear. After I get to third and up it's fine. I'm still new to this and don't really have a clue where to start. I've done some searching but couldn't manage to find...

so i bought a 1973 tx650 on ebay like a dumbass for my first motorcycle unfortunately some people suck and sell things to you by lying and saying they work when they don't. The dude said it ran and drove just fine but when it got turned on it kicked over but defiantly did not go into 1st anyway...

She was running fine, now when I take off I can't rev engine high in rpm or it starts to misfire Runs good at idle can give it throttle , but misfires on acceleration in any gear when I give it a normal amount of gas , had to get her home I had to quickly change each gear not allowing engine to...

Hi, Can the Pamco e-advancer be causing random misfires? My bike has a sligh uneven idle problem..idles at 900rpm and at 1100 rpm randomly. On acceleration, the bike randomly misfires... And therefore The bike is impossible to run correctly. The first 100 meters the bike runs well...

1976 xs650. Stock points system Left cylinder has always had this issue but I want it reliable for this weekends trip. Left cylinder misfires and backfires a little when you rev it when let off. Right cylinder is dead on and never had an issue. Cam chain good Valves good Points good...