ionroller Posted September 8, 2010 Report Share Posted September 8, 2010 Just bought a set of cylinders they are a HJR dune port.. Set up will be HJR dune port pro flow with pro designs filter +4 timing milled head FMF Fatty pipes Turbine core silencers NW Ohio on lake erie 50-90 degrees I was guessing 340 mains and 27.5 pilot, am I close?? Thanks Quote Link to comment Share on other sites More sharing options...
hercalmighty Posted September 8, 2010 Report Share Posted September 8, 2010 Good spot to start. Probably end up closer to 290-310 on the main Quote Link to comment Share on other sites More sharing options...
ionroller Posted September 8, 2010 Author Report Share Posted September 8, 2010 (edited) im at a 290 now with no porting Edited September 8, 2010 by ionroller Quote Link to comment Share on other sites More sharing options...
hercalmighty Posted September 8, 2010 Report Share Posted September 8, 2010 Well, like I said start at the 340 and work down. The porting actually helps pull fuel through the carbs. Quote Link to comment Share on other sites More sharing options...
06specialedition Posted September 8, 2010 Report Share Posted September 8, 2010 Bump it up a few sizes and go from there. I have a stock 350 with an aggressive dune port by Wildcard and I'm at 310 mains at 5000 feet. Quote Link to comment Share on other sites More sharing options...
Fullthrottle02 Posted September 8, 2010 Report Share Posted September 8, 2010 I would just call Kevin. Probably end up around 310-320, Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted September 8, 2010 Report Share Posted September 8, 2010 yeh call or message HJR, he will tell you exactly or get you pretty dam close. my dune port with t5's has 330 mains with stock pilots. Quote Link to comment Share on other sites More sharing options...
ionroller Posted September 20, 2010 Author Report Share Posted September 20, 2010 Put the bike together with 330 mains and the same 27.5 pilots.. It rips up top, but the bottom end is horrible. I havent played with air screws yet, but I will.. How much would a cool head help with 21cc domes??? Quote Link to comment Share on other sites More sharing options...
Fullthrottle02 Posted September 20, 2010 Report Share Posted September 20, 2010 try leaning the needle 1 clip. Quote Link to comment Share on other sites More sharing options...
Jtw Posted September 20, 2010 Report Share Posted September 20, 2010 did you ever change that pilot out. im having the same issue with my bike. rips up top but no bottom end, not sure if i should go leaner or richer on the pilot, let me know how it goes Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted September 20, 2010 Report Share Posted September 20, 2010 Alotta times you can tell if your pilots are lean by trying to crack the throttle open with the bike idling. If it wants to stall out then it may be lean on the pilot or even the needle. Seems like its pilot mostly but also needle clip position as well. Quote Link to comment Share on other sites More sharing options...
Braap_a_Banshee Posted September 22, 2010 Report Share Posted September 22, 2010 i have a 340 main on my hjr dune port but i have pod filters, and t 6's. not sure on pilot and needle cuz they never needed to be changed Quote Link to comment Share on other sites More sharing options...
armyvet Posted November 14, 2010 Report Share Posted November 14, 2010 old post but im in ohio as well and i run a aggressive play port with fmfs and shaved head.im at 350 mains and 4th clip on the stock needles from bottom,stock pilots.toomey 2into 1 air filter Quote Link to comment Share on other sites More sharing options...
ionroller Posted November 15, 2010 Author Report Share Posted November 15, 2010 (edited) I just ordered some 28 pwk's !!!! what will be a good starting point for them for 40 degrees F ?? Thanks Edited November 15, 2010 by ionroller Quote Link to comment Share on other sites More sharing options...
Darthwall Posted November 20, 2010 Report Share Posted November 20, 2010 155 mains and 48 pilots im running this at 1000ft you might want richer for the temp and alt Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.