supersider Posted March 8, 2009 Report Posted March 8, 2009 i change my jet in the bottom of the bowl today. What jet is that? Anyways it was a 170, i change it to a 172 then a 168. I ran before i fucked with it, but didnt idle. When i put the other two jets in it wouldn't start. So i changed it back to the orginal setting. Now it wont start on that either. Any suggestions? Quote
locogato11283 Posted March 8, 2009 Report Posted March 8, 2009 that jet should have little to no affect on it starting. that is the main jet. the pilot jet is what you need to be looking for. you will probably have to take the bowl off to get to it, as it sits off to the side of the main jet. what exactly are you trying to accomplish? Quote
supersider Posted March 8, 2009 Author Report Posted March 8, 2009 that jet should have little to no affect on it starting. that is the main jet. the pilot jet is what you need to be looking for. you will probably have to take the bowl off to get to it, as it sits off to the side of the main jet. what exactly are you trying to accomplish? Well before it would start. Now that i switched everything and then put it back to the way it was it wont start. It was starting but no idle it would take 1/4 throttle to make it idle. Where is the pilot jet located. And what do i need to do to make it run! Quote
grizzly700 Posted March 8, 2009 Report Posted March 8, 2009 (edited) Well before it would start. Now that i switched everything and then put it back to the way it was it wont start. It was starting but no idle it would take 1/4 throttle to make it idle. Where is the pilot jet located. And what do i need to do to make it run! if you tell us what your mods are, ur elevation, and temps. someone might be able to get u pretty close on your jetting. and like loco said u will have to remove the bowl on the carb and the pilot will be the other jet next to the one u changed already. which is the main jet. Edited March 8, 2009 by grizzly700 Quote
supersider Posted March 8, 2009 Author Report Posted March 8, 2009 if you tell us what your mods are, ur elevation, and temps. someone might be able to get u pretty close on your jetting. and like loco said u will have to remove the bowl on the carb and the pilot will be the other jet next to the one u changed already. which is the main jet. 1300ft above sea level. Toomey t5's,stage 5 port by trinity, pyrmaid reeds, kehinin 35 pwks open air kn, 4mil, runnin vp 116 i cant get it to start. it was running before i fucked with the main jet. compression is great! right now the temps here are 40-60 degrees Thanks! Quote
steeler2169 Posted March 9, 2009 Report Posted March 9, 2009 Dont mean to sound like a smart ass but is the choke tube hooked up. I just say because i Forgot to hook it up once. Quote
trex banshee Posted March 9, 2009 Report Posted March 9, 2009 it wont be the choke tube, thats only on stock carbs. Sounds like to me if everything was working fine before you messed with the carbs, you got a piece of dirt in the pilot when you were moving them around. Pull the bowl off and next to the main down inside of a aluminum barrel type thing there will be a brass pilot jet. You will need a pocket flat headed screwdriver. Take it out and clean it and the passage in the carb. Quote
sredish Posted March 9, 2009 Report Posted March 9, 2009 main goes in that big brass center and the pilot is down in that little hole. need a little flathead to get it. Quote
dajogejr Posted March 9, 2009 Report Posted March 9, 2009 To add to this post, I've circled in red where the pilot jet is. Remove it as said, get some brake cleaner...and flush the shit out of it. Then brake clean the pilot jet (tell us what size it is. It'll probably be in the 42 to 55 range. Get a piece of speaker wire and clean out the pilot jet, then brake clean it again. Once you pull the pilot jet, you'll realize why I said speaker wire. A tiny piece of dirt is all it takes to plug a pilot. Gently bottom out each air screw, then open each 1.5 turns from lightly seated. Quote
sleeper06 Posted March 10, 2009 Report Posted March 10, 2009 If you have air blow everything out,need to know sizes now cause wheather is a changin Quote
supersider Posted March 13, 2009 Author Report Posted March 13, 2009 To add to this post, I've circled in red where the pilot jet is. Remove it as said, get some brake cleaner...and flush the shit out of it. Then brake clean the pilot jet (tell us what size it is. It'll probably be in the 42 to 55 range. Get a piece of speaker wire and clean out the pilot jet, then brake clean it again. Once you pull the pilot jet, you'll realize why I said speaker wire. A tiny piece of dirt is all it takes to plug a pilot. Gently bottom out each air screw, then open each 1.5 turns from lightly seated. when you say bottom out do you mean, turn it all the way to the right. and then open it 1.5? or to the left? Sorry first time working on carbs!! thanks for all the help!! Quote
dajogejr Posted March 13, 2009 Report Posted March 13, 2009 The pilot jet must be snug, do NOT overtighten. The air screw is on the side of the carb. It threads in like any other bolt/nut would. Do not CRANK it closed, lightly seat it. Then back it out 1.5 turns. Quote
pinned247 Posted March 13, 2009 Report Posted March 13, 2009 Once you have the carbs back together. Give'm a tap with the handle of a screw driver or something. The floats might be sticking a little. I had to do this to mine once and it fired right up. It could be as simple as that.... Someone just asked a similar question on here. Quote
supersider Posted March 13, 2009 Author Report Posted March 13, 2009 The pilot jet must be snug, do NOT overtighten. The air screw is on the side of the carb. It threads in like any other bolt/nut would. Do not CRANK it closed, lightly seat it. Then back it out 1.5 turns. i bumped my pilot from a 58 to a 62, and still wont run. Any suggestions? 170 main 62 pilot , toomey t5 4mil pyrmaid reeds runnin 116 octane. elevation is 1300 above sea. H.E.L.P.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Quote
supersider Posted March 13, 2009 Author Report Posted March 13, 2009 The only thing that i changed was my fuel. I went from vp113 to vp q116. My dealer ran out of 113 so i had to buy the q116. could that be the problem? Quote
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