jack350 Posted June 19, 2010 Report Share Posted June 19, 2010 hey guys.. this shee aint running right cant pin point problem... the bike is had to start, wen it starts it idles fine and REVS fine aswell. wen i put in 1st gear it bogs till i reach 5-6 gear and opens up at WOT.. i thought it was electrical so i changed the stator and same thing. i changed coils same thing.. so now i back working on the carbss.. cleaned the shit outta them found a bit of dirt hangin around the main jet cleaned it all... then i checked the boots and found a lil crack.. i wanna know what the fuck is goin on.. any help is good thanks guys.. havent tried started after i cleaned the carbs coz i found the crack in the intake.. wat else should i look out for??? mods are 4mil stroker,max piston size (400cc) fmf sst exhaust, K&N filter, 30 pilot, 260 main, needle clip 3rd groove here are some pics of the plugs and intake boot http://s1042.photobucket.com/albums/b429/jack350/ thanks guys need all ur help.. Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted June 19, 2010 Report Share Posted June 19, 2010 you sound a bit lean man, try some 310's and work from there. id replace the boots, they have already started to crack, they will keep going untill they leak if they havent already. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted June 19, 2010 Report Share Posted June 19, 2010 so, i take it they are stock carbs? 260 is pretty lean. i'd immagine you around 360, but it all depends on elevation, temps, fuel. wonder what tore up the inside like that so bad. did you have a boost bottle on there? either way, it needs to ba replaced Quote Link to comment Share on other sites More sharing options...
madjimmax Posted June 19, 2010 Report Share Posted June 19, 2010 If them carbs are stock them pilots should be 27.5 with after market pipes and you main is way small I agree with AK at least a 360. Personally I start higher then that. Its better to start rich and lean down to what you need. Quote Link to comment Share on other sites More sharing options...
FrankieSquid Posted June 19, 2010 Report Share Posted June 19, 2010 If them carbs are stock them pilots should be 27.5 with after market pipes and you main is way small I agree with AK at least a 360. Personally I start higher then that. Its better to start rich and lean down to what you need. X2 Looks like your running on the lean side. I live in 2500 above sea level and temps reach around 100+ i jetted my shit to be around 310-320 and she runs great. Jet a few sizes richer and then do a plug chop (Theres a how to on here somewhere). Takes time and patience to get it tuned right but better to be on the rich side than lean. Quote Link to comment Share on other sites More sharing options...
midlifecrisis Posted June 20, 2010 Report Share Posted June 20, 2010 The pros have spoken on this, but here is a copy of the plug chop that I downloaded after listening to AK, in the past few weeks, 2-Stroke Plug Chop how-to: 1. Get new spark plug(s), but don't put them in yet. 2. Warm up motor to operating temp on old plugs. 3. Install new plugs. 4. Accellerate through all gears to top gear with throttle pinned. 5. When you hit the top of the top gear, hit the kill switch and pull in the clutch. 6. Remove the spark plug(s) and ride home on the old plug(s). 7. Hold the new plug in a vise and use a hacksaw to cut the threads away from the center electrode. 8. You should see a brown 2mm "smoke ring" at the base of the white center electrode if the main jets are dialed in perfect. 9. if the smoke ring is darker than chocolate brown or taller than 2mm, you're rich on the mains, but if it revs clean to full throttle, you can leave it there and be on the rich side. 10. If the smoke ring is smaller than 2mm or lighter than chocolate brown, you're lean on the mains, go up a size and try again. Quote Link to comment Share on other sites More sharing options...
jack350 Posted June 20, 2010 Author Report Share Posted June 20, 2010 thx for all ur input guys.. the shee had a boost bootle until i booted it to the neighbours.. i want to do a plug chop but it has a very bad bog and the reading wont be accurate.. i will bump up the main's .. the area where we ride is 2300ft above sea lv. the temp is around 57 degrees (winter) and we mix at 33:1 (motul 800) pump gas 98 AUS Quote Link to comment Share on other sites More sharing options...
jack350 Posted June 20, 2010 Author Report Share Posted June 20, 2010 also wanna know were i can buy some jets without having to sell my car for them yamaha wanted 29 bucks for 1 pilot jet thx alot boys appreciate it Quote Link to comment Share on other sites More sharing options...
fastbanshee8 Posted June 20, 2010 Report Share Posted June 20, 2010 Contact one of the site sponsors for the jets, and replace those intakes, before you have to do a top end rebuild. Quote Link to comment Share on other sites More sharing options...
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