BansheeUSA Posted September 24, 2020 Report Share Posted September 24, 2020 Hey so I have a 397cc 4 mil banshee that I am changing from race gas to pump gas. I am purchasing some 22cc domes from NOSS and I am wondering do I have to change my Jets for this mod. I am currently running 152 mains 48 pilots on 33 keihins. I am in Georgia as well which is around 500 above. So post your thoughts and your jet sizes that you are running to help me out. THANKS TO ALL Quote Link to comment Share on other sites More sharing options...
grantevans713 Posted September 24, 2020 Report Share Posted September 24, 2020 I have a 397 4mil I run on pump gas with 21cc domes at 1800ft elevation. I have Mikuni t34s and I'm running 280mains, can't remember my pilots. Not sure if this helps. It would seem like if you're running pump gas your jetting is would change. Quote Link to comment Share on other sites More sharing options...
BansheeUSA Posted September 25, 2020 Author Report Share Posted September 25, 2020 5 hours ago, grantevans713 said: I have a 397 4mil I run on pump gas with 21cc domes at 1800ft elevation. I have Mikuni t34s and I'm running 280mains, can't remember my pilots. Not sure if this helps. It would seem like if you're running pump gas your jetting is would change. Yes and I think elevation plays a lot into it as well. Thanks for your info tho. Quote Link to comment Share on other sites More sharing options...
grantevans713 Posted September 29, 2020 Report Share Posted September 29, 2020 For every 2k elevation higher, you go down a jet size. Quote Link to comment Share on other sites More sharing options...
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