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View Full Version : New motor 38mm keihin jetting



destey
09-11-2008, 08:14 PM
So I just got a 86 250r with a rebuilt top end that's never been run. its .030 over, vforce reeds, fmf fatty pipe, polished port. its got a 142 main jet that came with it, is that lean? not sure of the pilot. its the PJ series 38mm keihin. anyone know what i should be running for jets with this setup?

iginition should be here tomorrow then the bike should be complete. then do I just follow the breaking procedure in the sticky?

LONG-ROD
09-11-2008, 09:00 PM
I would say start with a br9es plug and 182 main 55 piolet and dgh needle 3 clip, then start doing plug chops, several. Then you know you will be right.

destey
09-12-2008, 06:34 AM
thanks so much!!!!