one cylinder

Hey guys so i just got a 1974 xs650 with 12xxx miles on our. When i got it i did an oil change, spark plugs, air filters and just some normal maintenance. After everything it was running pretty good (carbs still need to be cleaned) for about 10 hours and then it decided not to accelerate. The...

Running kick only,wireing overhaul, small 3 A/h batt, pamco ignition, iridium plugs, Mikuni BS38 carbs, 130 pilot jet, 2 turns out on idle mix screw. NOTE: I have NOT swapped for nylon screws on my grounded brush yet. SYMPTOMS -Idles really rough at proper idle rpm sometimes the bike quits and...

So I built me a cafe racer and when i finished I realized im only running on one cylinder. I have 150 compression, great spark, and fuel in the carbs. but when its running I can pull the left side spark plug wire and it still runs but when i put the plug back start up again and pull right side...