I have a 84 atc 200. I was wondering if anyone knew the correct jetting specs for around 2000 feet. Also what the correct spark plug is? I keep fouling plugs and look black and sooty. Maybe if anyone knew what the specs were for the coil to would be helpful.

Thanks alot!

 

Do you have a 200-M,S, or X. I don't show anything for a plain 200 in 84'

 

Well????????? LOL

 

ya know, im having the same problem too its driving me crazy! ill ride it for 15 mins with a new plug then let it rest and then it wont even try to start. i clean the plug and still nothin. i then put a new plug in and it runs fine.

 

Its the 200m. The jetting seems to be pretty close to stock. It has 100main and 35 pilot. Seems to be rich at all throttle postions.

thanks again

 

My book says the main jet for the 200M stock is a 95, pilot setting is 2 1/8 turns, and the needle on the 3rd groove.