bansheejoel Posted March 30, 2008 Report Share Posted March 30, 2008 so i just got my shee up and going after the porting, head work, pistons etc ect. I broke it in and did a few heat cycles and it ran amazing! I just took it down my road after letting it warm up and only rode maybe 20 mph the whole way down the road to warm her up a little (1/2 mile) then on the way back i got on the throttle from 1st gear through 4th and it just shut off so i pulled in the choke and it fired back up and ran like shit the whole way back home missing and running on one cylinder so i checked compression and it was perfect at 135 in both cylinders....i let it sit and ripped down my road again and it did the EXACT same thing it acts like its running out of gas..when it gets into the powerband it misses like it has fouled plugs but when you let it sit for a few minutes it runs perfect for maybe 300 yards then starts missing again. But as long as you stay out of the throttle it runs and idle's great but as soon as you get near the powerband it runs like crap...what do you guys think?? Quote Link to comment Share on other sites More sharing options...
lowbuckracing Posted March 30, 2008 Report Share Posted March 30, 2008 so i just got my shee up and going after the porting, head work, pistons etc ect. I broke it in and did a few heat cycles and it ran amazing! I just took it down my road after letting it warm up and only rode maybe 20 mph the whole way down the road to warm her up a little (1/2 mile) then on the way back i got on the throttle from 1st gear through 4th and it just shut off so i pulled in the choke and it fired back up and ran like shit the whole way back home missing and running on one cylinder so i checked compression and it was perfect at 135 in both cylinders....i let it sit and ripped down my road again and it did the EXACT same thing it acts like its running out of gas..when it gets into the powerband it misses like it has fouled plugs but when you let it sit for a few minutes it runs perfect for maybe 300 yards then starts missing again. But as long as you stay out of the throttle it runs and idle's great but as soon as you get near the powerband it runs like crap...what do you guys think?? Did you re jet it? Quote Link to comment Share on other sites More sharing options...
bansheejoel Posted March 30, 2008 Author Report Share Posted March 30, 2008 yeah i did its got 25 pilot needle is on the 4th clip and it has 380 mains...the only thing i did with the jetting is took out the old 340 mains and put in the 380s since it is like 45 degrees out here id rather be a lil rich than lean but it ran awesome all day but i didnt really rip on it hard untill tonight when i went through the gears but i did get into the powerband a little today and it didnt miss or anything like it does now. When i start it runs/idle's great, i get on the road rip thru the gears and it runs great one way then i turn around to ride back and as soon as i get near the powerband it misses and sputers like crazy but if i keep it below the powerband it runs good. At first i thought maybe to main jet got plugged but it wouldnt make any sence if it runs great one way then on the way back it runs like crap Quote Link to comment Share on other sites More sharing options...
lowbuckracing Posted March 30, 2008 Report Share Posted March 30, 2008 yeah i did its got 25 pilot needle is on the 4th clip and it has 380 mains...the only thing i did with the jetting is took out the old 340 mains and put in the 380s since it is like 45 degrees out here id rather be a lil rich than lean but it ran awesome all day but i didnt really rip on it hard untill tonight when i went through the gears but i did get into the powerband a little today and it didnt miss or anything like it does now. When i start it runs/idle's great, i get on the road rip thru the gears and it runs great one way then i turn around to ride back and as soon as i get near the powerband it misses and sputers like crazy but if i keep it below the powerband it runs good. At first i thought maybe to main jet got plugged but it wouldnt make any sence if it runs great one way then on the way back it runs like crap Maybe its running out of gas in the float bowl...did you try to adjust your float level? Quote Link to comment Share on other sites More sharing options...
bansheejoel Posted March 30, 2008 Author Report Share Posted March 30, 2008 no i didnt try that how do you do it? Its definally a gas issue dont you think? its wierd how before i rebuilt it never did this. Quote Link to comment Share on other sites More sharing options...
bansheejoel Posted March 30, 2008 Author Report Share Posted March 30, 2008 tors are completly gone and capped off and the parking brake is disconnected waiting on the blockoff plate but is totally disconected from everything. Quote Link to comment Share on other sites More sharing options...
shee4speed Posted March 30, 2008 Report Share Posted March 30, 2008 I 2nd the float bowl levels. Pull the bowls and gaskets and with the carbs upside down, measure the distance between the float and the carb where the gasket would be. It should be 21mm. Hopefully that helps. Quote Link to comment Share on other sites More sharing options...
bansheejoel Posted March 30, 2008 Author Report Share Posted March 30, 2008 anyone else? Quote Link to comment Share on other sites More sharing options...
dekker Posted March 30, 2008 Report Share Posted March 30, 2008 Did you try dropping the main.... checking your petcock screen for blockage that would restrict the fuel flow???? Clean the carbs real good with compressed air sounds like you have done most of it .... definately seems like a fuel problem to me too Quote Link to comment Share on other sites More sharing options...
rtcc Posted March 30, 2008 Report Share Posted March 30, 2008 Check all your electrical as well. Mine did that from a bad spark plug cap. Just a weird thing that always happens when you are trying to get something else to work. Also, stator could be getting weak. Quote Link to comment Share on other sites More sharing options...
ramboner69 Posted March 30, 2008 Report Share Posted March 30, 2008 i had a similar issue with a bad coil..and on my other the timing plate broke that holds the pick up coil in place..jus some ideas Quote Link to comment Share on other sites More sharing options...
bansheejoel Posted March 30, 2008 Author Report Share Posted March 30, 2008 well i dropped the mains from 380 to 350 adjusted the floats moved the needle up one clip and cleaned out the whole carb really good with the air compresser...now it runs whorable! i cant even make it one lap around my yard without it cutting out and shutting off. It acts like its really restricted..it runs good up to the powerband but wont hit the powerband AT ALL rite before it hits the powerband it runs like shit and starts missing like crazy then shuts off... Quote Link to comment Share on other sites More sharing options...
dekker Posted March 30, 2008 Report Share Posted March 30, 2008 I dont know man if you want me to stop and give you a hand let me know Quote Link to comment Share on other sites More sharing options...
ziegman Posted March 30, 2008 Report Share Posted March 30, 2008 make sure your slides are not in backwards Quote Link to comment Share on other sites More sharing options...
bansheejoel Posted March 30, 2008 Author Report Share Posted March 30, 2008 the slides are in the correct carb. Ive re-jetted 3 times now with no change at all, i cut the coil wires down and reinstalled the spark plug caps in some fresh copper, put on a new choke tube, pluged back in the tors box for the hell of it and still nothing, cleaned out the gas tank screen. The only other thing i can think of is maybe my reeds are shot because when i put it back together one set had like a 1/4" gap between the reeds and the cage, Do you think this could cause this to happen and also do you think my porting could be the cause of this even though it ran perfect before this happened? thanks guys Quote Link to comment Share on other sites More sharing options...
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