chevy1500z71 Posted August 7, 2008 Report Share Posted August 7, 2008 im building a blaster right now and its got an lrd pipe, reads, porting, and an old 34mm round slide mikuni that came from a snowmobile. my problem has to be something to do with jetting since i don't have a clue were to start. what it does is it will run as i kick it and die once i stop kicking it, in the idle position. it smokes really bad as i do this so it must be really rich. it wont do anything at all in any other position but idle. i changed the 310 main jet for a 240 main and it still does nothing when i give it throttle. the pilot jet is a 55, could the pilot jet be the problem? when i hold it full throttle and kick it it doesn't fire, but it doesn't smoke either, but i doubt its lean becasue it did the same with a 310 main. something must be wrong other than jetting? or maybe im just way to rich all around? im normally good at jetting 2 strokes and i know what im doing but iv never started with absolutely no starting point before so i need to know what its going to take to get m in the ballpark so i can start fine tunning. o yea, and i cleaned the carb extensively. its as clean as a brand new carb. Quote Link to comment Share on other sites More sharing options...
dhopkins99 Posted August 7, 2008 Report Share Posted August 7, 2008 heres a long shot, change your plug for a new one, had problems kicking my banshee, put new plugs in and fired on first kick. Quote Link to comment Share on other sites More sharing options...
chevy1500z71 Posted August 7, 2008 Author Report Share Posted August 7, 2008 (edited) heres a long shot, change your plug for a new one, had problems kicking my banshee, put new plugs in and fired on first kick. i forgot to mention i just built the motor, it has all new parts, including a new sparkplug. thew motor is fine, its definitely the jetting thats the prob. Edited August 7, 2008 by chevy1500z71 Quote Link to comment Share on other sites More sharing options...
Michael Jackson Posted August 7, 2008 Report Share Posted August 7, 2008 (edited) dhopkins - if your jetting is on, your plugs will never foul and turn black like you were talking about, and if you pull your plug out and its black, throwing in a new one is only covering up the problem temporarily, correct jetting will solve the problem all together , youd be surprised how much better your bike will run if you get the jetting dialed in, itll feel like a whole new bike and u wont have to chnage the plug everytime u wana start it chevy1500z71 : go over to www.everything2stroke.com , tons of blaster guys on there that know their shit, and that would be more than happy to help you Edited August 7, 2008 by Michael Jackson Quote Link to comment Share on other sites More sharing options...
travis6767 Posted August 7, 2008 Report Share Posted August 7, 2008 do you still have a stock carb laying around? if so try putting that on and see what happens start out with a 290 main and go from there Quote Link to comment Share on other sites More sharing options...
chevy1500z71 Posted August 7, 2008 Author Report Share Posted August 7, 2008 do you still have a stock carb laying around? if so try putting that on and see what happens start out with a 290 main and go from there i sold the stock carb, the motor will run fine, if i put a stock carb on theres no doubt it would run. i just need to get this carb jetted right. Quote Link to comment Share on other sites More sharing options...
dhopkins99 Posted August 8, 2008 Report Share Posted August 8, 2008 dhopkins - if your jetting is on, your plugs will never foul and turn black like you were talking about, and if you pull your plug out and its black, throwing in a new one is only covering up the problem temporarily, correct jetting will solve the problem all together , youd be surprised how much better your bike will run if you get the jetting dialed in, itll feel like a whole new bike and u wont have to chnage the plug everytime u wana start it chevy1500z71 : go over to www.everything2stroke.com , tons of blaster guys on there that know their shit, and that would be more than happy to help you my plugs are fine checked them earlier. Quote Link to comment Share on other sites More sharing options...
chevy1500z71 Posted August 8, 2008 Author Report Share Posted August 8, 2008 my plugs are fine checked them earlier. if they turn black the bike it running rich. just figure out were its running rich and leen it out. if it runs rich at wide open then lean out the main jet, if its rich throughout the midrange then move the needle down. you kind of have to have a feel for it... now if they turn black over a very long period of time then thats no big deal, 2 strokes foul plugs eventually, thats just how it is. Quote Link to comment Share on other sites More sharing options...
chevy1500z71 Posted August 8, 2008 Author Report Share Posted August 8, 2008 someone help me out! im so lost here, i took a video of it so maybe you all can understand whats going on a little better. in the video, when i lean over to the right left fender its becasue i have a primer there, it just dumps fuel into the intake since the carb has no choke, you can see that i prim way to much in and it floods out, as it cleans up it starts to run but only like iv mentioned int he first post. iv posted this on everything2stroke.com, blasterforum.com, and all i get is "did you remove the tors". the motor gets spark! tors shouldn't even be in the question! lol Quote Link to comment Share on other sites More sharing options...
chevy1500z71 Posted August 8, 2008 Author Report Share Posted August 8, 2008 ok, my buddy keeps his stock blaster at my house, and hes outa town so i borrowed his carb and it still doesn't run on a stock carb, it does better, but still wont actually start up and idle and run properly. so it could be 2 things, either i put the reeds on upside down(dual stages, wrong stage first maybe?) or my bargen 80$ port job wasn't such a good deal after all? Quote Link to comment Share on other sites More sharing options...
chevy1500z71 Posted August 8, 2008 Author Report Share Posted August 8, 2008 so i put the stock reads on from my buddys bike and still no fire. i put the 34mm carb, dual stage reads and spacer on my buddys stock(stock other than an lrd pipe) blaster and it ran great. yet nothing will run on my bike? im thinking it has to be the porting? Quote Link to comment Share on other sites More sharing options...
chevy1500z71 Posted August 8, 2008 Author Report Share Posted August 8, 2008 ok so from what i understand 03 has somewhat of an ecm, can someone explain to me how exactly it functions and what sensors does it use and how they should be properly bypassed. thanks. Quote Link to comment Share on other sites More sharing options...
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