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View Full Version : 1984 Atc250r carb starting point help???? Jetting ???



Dcaldart
01-30-2018, 04:21 AM
I need a starting point for the following set up

Fresh Bore .80 over
New PWK Keihin 36mm
stock bottom end
Aftermarket dg exhaust
No air box
KN air filter

New Card came with:

Main Jet: #170
Pilot Jet: #55
Jet Needle: C.A. 7.0


Need jet starting point :wondering

Thank you any help