what jetting are you ending up with. and i want to mod the airbox so what jetting will i end up at,i will be riding at sea level up to 1000 feet.. trying to tune up the bike for Glamis,all the help will be appreciated..thanks


and any products and miner stuff i can do to make it rip..Thanks

 

Thanks for the help.. No wonder you guy's are slow..

 

Did you get a reply on this??? I have the same question. I have Z400 with the Team Suzuki yoshi slip on pipe, a uni filter (foam) in place of the stock filter, the noise baffle (black hood) removed from the snorkle, a thunder products TPI (2.5 sq inch) adjustable airbox filtered vent and a Thunder Products Dial-a-Jet. I just returned from Silver Lake Dunes in Michigan (basically at sea level) and I am still having problems with the Z popping and cutting out when doing sand drags. I have the stock 125 jet and the Dial-a-jet set at +1 rich and I think I am still too lean or I am hitting the REV limiter. I know that the Yoshimura web site recommend a 152.5 jet when you use the slip-on pipe and have the airbox lis and snorkle noise baffle removed. I am thinking of jetting up to a 142.5 jet and setting my Dial-a-jet to the middle or normal setting. I am heading to Dumont Dunes in December and need to get this figured out.

 

you need to change your air intake to get the true benefits from jetting. i run k&n filter no lid, 155 main 125 pilot, fuel screw at 3 turns out(from the all the way in position), and the team suzuki yoshi pipe. i ordered the jet kit from albaaction.com for like 20 bucks.

 

Thanks, The Dial-a-Jet that I have recommend that you run 3 jet sizes down from what the vendor recommends when you add pipes and modify airboxes as the Dial-a-jet will supply the additional fuel, but can not make it leaner... so based on that I will install a 147.5 main jet and then see how it runs.

Do you have a problem with hitting the REV limiter when doing sand drags now that you have made the airbox and pipe changes?