nicktoney Posted August 6, 2006 Report Share Posted August 6, 2006 i just jetted my bike and it runs great on top... pulls hard, but down low, you can lug around, then itll spit a bit and take off... would these plugs clean that up? my jetting for my trinity IV pipes and no box lid w k&n are: 300mains, 27.5 pilots, needle 4th clip... elevation 12-1400ft, 80* Quote Link to comment Share on other sites More sharing options...
2bzy2p Posted August 6, 2006 Report Share Posted August 6, 2006 b9es would be a great plug ,,b8es is a little hotter you could try that if it starts cutting out then its too hot a plug and put the b9es back in,i gap mine at .23 as well. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted August 6, 2006 Report Share Posted August 6, 2006 b9es would be a great plug ,,b8es is a little hotter you could try that if it starts cutting out then its too hot a plug and put the b9es back in,i gap mine at .23 as well. BR8ES will run just fine, clean up the pilot and/or air screw... 2B...you're on alky, I don't see that in this user's post anywhere or in his mods.... 8 range is fine...you should be able to clean up your jetting to fix that issue... Try a 25 pilot, if that doesn't fix it...try moving the needle back to the middle clip... Quote Link to comment Share on other sites More sharing options...
nicktoney Posted August 6, 2006 Author Report Share Posted August 6, 2006 what was that trick, was it something like, if it spits and sputters up top its too lean? and when it happenson the bottom its rich? or am i just remembering an old post that didnt concern my problem? Quote Link to comment Share on other sites More sharing options...
Polish Posted August 6, 2006 Report Share Posted August 6, 2006 check the pilot......... :tongue: Quote Link to comment Share on other sites More sharing options...
dajogejr Posted August 6, 2006 Report Share Posted August 6, 2006 Your carb has circuits built in, pilot/air screw, needle and main (yeah, I know...slide too, but let's focus on the basics here)... The main is 3/4 to WOT throttle, needle is 1/8 to 3/4 and the pilot jet and air screw are idle to 1/8 throttle. Since it's bad off the bottom, it's either the pilot and/or air screw adjustment... Quote Link to comment Share on other sites More sharing options...
sredish Posted August 7, 2006 Report Share Posted August 7, 2006 (edited) I wouldn't suggest switching from the std. "8" heat range unless your spark plugs show the sign that they need a different heat range. Look at the grounded side electrode to determine if you've got the proper heat range for your spark plug and this is done by closely examining the color change of the side electrode. If the color of the electrode changes near its end where it sits over the center electrode, then the spark plug heat range is too cold and what you're seeing is the color changing due to the heat transferring too quickly. If the color of the side electrode changes color near where it's welded to the base ring, then your spark plug is too hot and what you're seeing is a slower heat transfer from the side electrode to the base ring, resulting in preignition/detonation issues and most of the deposits will be burned off. Ideally, you want the side electrode of your spark plug to change color at about the half way point, about where it makes it's 'L' shaped bend. Edited August 7, 2006 by sredish Quote Link to comment Share on other sites More sharing options...
nicktoney Posted August 7, 2006 Author Report Share Posted August 7, 2006 you know, come to think about it, i didnt adjust my air screw... i was told 2 turns out.... isnt stock set to 2 turns out? or do they mean, 2 additional turns out? Quote Link to comment Share on other sites More sharing options...
sredish Posted August 7, 2006 Report Share Posted August 7, 2006 not sure what stock is but it shouldn't be more than 2 turns out. any more and it's time for a pilot jet change. usually you want 1 to 1 1/2 turns out. it's not much of a tuning device, it's more of a "fine-tuning" device. get your pilots set and dial the idling and all in with the air screw. 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.