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View Full Version : big gun jetting


jhr400EX
10-24-2002, 11:54 AM
today i am going to the honda shop to pick up my pipe and jets for the 400. What jet sizes would you guys reccomend for the race series full system with the stock air filter and no airbok mods? thanks
MR. HONDA EX'S
10-24-2002, 01:45 PM
When I ran my full big gun, I used a 170 main and move the needle like the jet kit said to. I also turned the air/fuel screw out 2 1/2 turns. For the airbox I ran without a lid. It ran real good. Any ?'s just give me a yell.:D
yellow400rider
10-24-2002, 02:10 PM
why do u no longer run the big gun system? im saving up money to purchase the full race system and was just wanted your opinion on it? thanks