iame Posted February 22, 2011 Report Share Posted February 22, 2011 lean condition would cause that i had the same problem thought i had an airleak change your jets first and clean the carbs while you got them off put a 270 - 280 to start and see what happens if it is the same problem check your boots reeds ect but too lean and it acts like an air leak Quote Link to comment Share on other sites More sharing options...
rjt Posted February 23, 2011 Author Report Share Posted February 23, 2011 Basically is the lean codition heats the plug to where it's hot enough to ignite the fuel without a spark, like a glow plug in a rc car. Might as well clean carbs good and check fuel petcock and screen, clean tank. Pay close attention to carb boots when testing, where crossover/ boost bottle nipples are. Thanks for the info, have new boots, jets, choke and idle kit on the way, the needles look brand new, as well as the airscrews. Doing the leak down tomorrow just to be sure. Quote Link to comment Share on other sites More sharing options...
rjt Posted February 23, 2011 Author Report Share Posted February 23, 2011 lean condition would cause that i had the same problem thought i had an airleak change your jets first and clean the carbs while you got them off put a 270 - 280 to start and see what happens if it is the same problem check your boots reeds ect but too lean and it acts like an air leak Thanks, parts are on there way, hope to have it dialed in this weekend. Quote Link to comment Share on other sites More sharing options...
fastquad02blaster Posted February 24, 2011 Report Share Posted February 24, 2011 Bigger main and pilot. I'm thinking i've got a 310 main in mine right now and a 27.5 pilot. That's my spring/fall jetting. For hotter, I go just a touch leaner and winter, a touch richer. Quote Link to comment Share on other sites More sharing options...
rjt Posted February 25, 2011 Author Report Share Posted February 25, 2011 Bigger main and pilot. I'm thinking i've got a 310 main in mine right now and a 27.5 pilot. That's my spring/fall jetting. For hotter, I go just a touch leaner and winter, a touch richer. I have three different size main jets coming and a pair of 27.5 pilots. Should have it dialed in this weekend, thanks. Quote Link to comment Share on other sites More sharing options...
rjt Posted February 25, 2011 Author Report Share Posted February 25, 2011 Leak down complete held 6 lbs for 10 minutes without even a twitch in the needle. Waiting for carb parts to get it back together. Quote Link to comment Share on other sites More sharing options...
camatv Posted February 25, 2011 Report Share Posted February 25, 2011 hey its to lean. Quote Link to comment Share on other sites More sharing options...
rjt Posted February 25, 2011 Author Report Share Posted February 25, 2011 hey its to lean. Yeah, just checking to be sure it was only the jetting. Quote Link to comment Share on other sites More sharing options...
guns4children Posted February 25, 2011 Report Share Posted February 25, 2011 keep us updated! Quote Link to comment Share on other sites More sharing options...
rjt Posted February 27, 2011 Author Report Share Posted February 27, 2011 Ok , here is where I'm at. Installed idle kit, new choke, new carb to air box boots, cleaned tank screens and flushed tank. Carb set up is 300 mains, 27.5 pilot, needle in the fourth clip, air screws 1 1/2 turns out . IT RUNS AWESOME !! Thanks for all the input brothers, if your in my neck of the woods brews are on me!! Now just need the weather to cooperate to get this thing out on the sand. In the meantime dressing it up a bit , starting with a custom seat cover from vegas jeff !!Great site glad to be a member , thanks again for all the help !! Quote Link to comment Share on other sites More sharing options...
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