05bansheeman Posted May 11, 2013 Report Share Posted May 11, 2013 Ok guys i got an '05 Hybrid I built. New top end, head shaved, flywheel lightened, +5 timing advance, VForce3 reed system, Flotek ported, individual UNI POD filters, shift star mod, NGK B8EG plugs, FMF fattys and Power Core II silencers(pipes are cut and custom fit to remain in frame on the hybrid, they are now a mid range pipe instead of the normal low end fmf fatty) i run AV100LL mix 40:1 with Klotz super techniplate. my Main jets are 310 my needle is factory and set to factory position, and my pilot jet is 27.5. here is the problem. bike starts fine, first kick(most of the time without the choke) idles great comes off idle great it snaps. it pulls supe hard on the top end. the problem lies with the mid range.like i said idles fine comes off idle fine but when i ride in lower 3 gears the mid range is bad it hesitates and is erratic. i have tries all position on the needle and doesnt seem to change much if anything. i rode it aroung in the RPM range that it "acts up" for about 5 minutes and the plugs were kinda wet or oilly so i would assume rich, but i tried all the different needle positions and doesnt seem to work. like i said the pipes are custom so i imagined it would be finnicky to jet but dont know which way to go when it doesnt seem to change with the needle. could i need a different taper or design of needle? ive never messed with different needles before just change position. and help would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted May 11, 2013 Report Share Posted May 11, 2013 Have you done a full 5th or 6th gear plug chop yet?needles taper and diameter are some of the biggest changes you can make to the state of tune of your motor, I would get a few different style needles and try it,no one will be able to give you a solid answer not knowing the effect the modified pipe,good luck Quote Link to comment Share on other sites More sharing options...
buster48116 Posted May 17, 2013 Report Share Posted May 17, 2013 Try this set up and tell me how it works for you! 260 main 32.5 pilot needle in middle air screws 1 3/4 out! Now you will have no bog and it will scream! Quote Link to comment Share on other sites More sharing options...
J-Madd Posted May 17, 2013 Report Share Posted May 17, 2013 You'll have 2 melted pistons with 260 mains on that. Quote Link to comment Share on other sites More sharing options...
noonansar Posted May 17, 2013 Report Share Posted May 17, 2013 ^^^ For sure. & 32.5 pilots sound HUGE. My 30s are almost too rich in the summer with all the same mods. good in winter though... Quote Link to comment Share on other sites More sharing options...
noonansar Posted May 17, 2013 Report Share Posted May 17, 2013 Do you have any buddies running different aftermarket needles that you could try? Quote Link to comment Share on other sites More sharing options...
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