slobanshee Posted April 12, 2014 Report Share Posted April 12, 2014 Needing advise on my carb setup. I can't get it cleaned out worth a damn to take off. Just falls on it's face for about 50ft then cleans up and takes off. Been as low as 15-42 trying to leave in 1st and still won't take off. Quite a bit of fuel being blown out as soon as I crack the throttle. Would you go smaller mains and pilots or just mains? Tried timing from 4-8* without change and needle from top to bottom. 39pwks. .120 mains. .126 dumps. 60 pilots. 10mil cub. 42 squish 190 kicking psi. Any advise would be appreciated!! Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted April 12, 2014 Report Share Posted April 12, 2014 What needles Quote Link to comment Share on other sites More sharing options...
slobanshee Posted April 12, 2014 Author Report Share Posted April 12, 2014 I'm at work right now and can't remember. I'm almost sure EGN Quote Link to comment Share on other sites More sharing options...
Redline Racing Posted April 12, 2014 Report Share Posted April 12, 2014 If they are drilled to .126 you will need a EGQ needle and a really small pilot. 1 Quote Link to comment Share on other sites More sharing options...
slobanshee Posted April 12, 2014 Author Report Share Posted April 12, 2014 Leave the mains as is or lean them also? Quote Link to comment Share on other sites More sharing options...
Redline Racing Posted April 12, 2014 Report Share Posted April 12, 2014 No I'd leave mains. With it being drilled so big it will be really rich in the middle. Prob a 40 something pilot. 1 Quote Link to comment Share on other sites More sharing options...
slobanshee Posted April 12, 2014 Author Report Share Posted April 12, 2014 I'm sorry I was wrong. Ran home and looked and they are EGL needles Quote Link to comment Share on other sites More sharing options...
dozer Posted April 12, 2014 Report Share Posted April 12, 2014 (edited) like cam said small pilot and lean needle. it would be easier to tune if the dump tube wasnt so big but i dont think you can do anything about that with pwk's. also make sure your not drwaing fuel through the powerjets at low throttle. Edited April 12, 2014 by dozer Quote Link to comment Share on other sites More sharing options...
camatv Posted April 12, 2014 Report Share Posted April 12, 2014 chese n rich jet the pilot down. you messed with everything except what was wrong.. if the powerjet wont supply enough fuel with the smaller dumps they can lean out on a longer run. especially if its a cub. they need a lot of fuel to stay alive. this is what i would try first. get a 125 main, drop needle to middle position. drop slow untill it will idleok and only takes about 1 sec to clean out from just sitting. it needs to rev easy just sitting after a quick clean out.. then open pj all the way and ride it should fall on its face as you hit full throttle. if not your right on the edge of being to lean on the main, and power jet. if it falls on its face turn pj down a 1/4 of a turn untill it pulls. it might blubber a tad on top and you can then install new plugs and fine tune from there. then as the weather changes during the day you may have to richen or lean for temps on the main. if it gets to the point its to lean on the pilot you can then go spend another hour in the pits changing pilots to a larger step or raising needle to get it tamed down. with lectrons you could just move the needle down without even taking the carbs off and most likely right there where you were doing your initial tune at. most times i have the needle set and the idle good before it even goes out for the first run sometimes a small needle adjustment is needed but it takes about 5 minutes then as the temps change they are not nearly as picky on tune. Quote Link to comment Share on other sites More sharing options...
slobanshee Posted April 12, 2014 Author Report Share Posted April 12, 2014 I have a set of .124 mains it woudknt even rev up. Just blow tons and tons of alky. Had needle all over. Bearly responded. Put .120s in it and it's a little better but still junk. It's always started and idled perfect. Soon as u crack the throttle it'll blow raw alky. I've tried the pj almost closed and it still won't clean out. But while revving trying to clean out it's not pulling fuel through the pj's. I'm kinda kicking my own ass. Had lectrons and wanted to give pwks a try. Thus far this has sucked. Lol Quote Link to comment Share on other sites More sharing options...
slobanshee Posted April 12, 2014 Author Report Share Posted April 12, 2014 With .124 mains it wouldn't even run on purge fuel other than just bearly idle, from what I assume was crazy richness Quote Link to comment Share on other sites More sharing options...
J-Madd Posted April 13, 2014 Report Share Posted April 13, 2014 Has the pilot circuit been modified? You can try more timing than you've been running. Quote Link to comment Share on other sites More sharing options...
slobanshee Posted April 13, 2014 Author Report Share Posted April 13, 2014 No sir has not been Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted April 13, 2014 Report Share Posted April 13, 2014 Electrical system up to snuff? Plug gap good? Sent from a van down by the river Quote Link to comment Share on other sites More sharing options...
slobanshee Posted April 13, 2014 Author Report Share Posted April 13, 2014 100% sure. Pulled carbs off and tossed my other bikes carbs on and ran good. These on other bike ran with same symptoms. My old lady was pissed. (Her bike) lolol Quote Link to comment Share on other sites More sharing options...
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