Well lads need some advice.

The bike runs on 3 cylinders down in the lower rev range and sounds like a tractor (cyl. no,2 is not firing)

once above about 7k it comes back into life all 4 fire perfect

about 2/10 times after a ride it will idle great on all 4

so far i have checked compression ( all is okay ) cleaned the carbs thoroughly especially cyl 2, spark is good however i did see a spark fly out of the back of the plug cap and replaced the ht lead and the plug cap, ive swapped plugs between cylinders and its still the same.

Im ready to just replace the 2 coils all leads and caps and 4 new plugs?

Anybody else got any other theorys? It used to run rough before too but i learned the tps was throwing a fault code, i reset it and it ran much better.

Must be electrical?? thanks in advance :smileee: :smileee: