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View Full Version : ATC 250R jetting help



BiggC
09-13-2009, 11:24 AM
My son just bought an 84 250r. We are trying to get a ball park jetting number to start with before we do a plug chop.

It has a 35mm mikuni flatside carb.It has been ported and bored .080 over, also has DG pipe. We are close to sea level as far as elevation.

Sometime when you are accelerating it will bog until you let out and then it will pick back up.
Also it has shut down at wot.

Im new to the atc forum so any help would be appreciated.