12 Bar question?

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Old May 6, 2005 | 10:08 PM
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12 Bar question?

i just made a 12 bar and have been testing it out for a couple days now. i have no problem hittin and sliding at all. the problem is say i hit it in second and scrap for 20 feet, everythings fine. but as soon as i go to get off the bar by hittin the brake, the engine dies. any of you have this problem and how hard is it for you to get off the bar? im thinking i need a new brake anyhow, not sure how much that would help though.
Old May 6, 2005 | 10:25 PM
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Re: 12 Bar question?

I got that problem too, except I roll about 150-200 feet, then it cuts out when I bringit back into a wheelie agian . Are you runnin a 50 or a big bore, cuz the big bore kit helps alot.
Old May 6, 2005 | 10:39 PM
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Re: 12 Bar question?

tak 88 with manual clutch


it sucks when you do an ape hanger then huck yourself back up on the bike and it stalls and you go nuts first into the seat. thats why i want to figure out what i can do about it
Old May 6, 2005 | 10:51 PM
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Re: 12 Bar question?

I got the same kit with stock clutch, it sputters, but if I hold it half throttle it gets the job done. I had to lean mine out a little to help the problem, I riased the clip on the needle.
Old May 6, 2005 | 11:01 PM
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Re: 12 Bar question?

Yea sounds like you have too rich of a mixture, lower the clip one slot. Should be at 3 the way it is so make the clip on 2. Or whatever it's on just lower it one.
Old May 6, 2005 | 11:44 PM
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Re: 12 Bar question?

i had that problem too. just like they said, i lowered the needle, but i also played with the mixture screw a little bit to, seems to have helped, but it still isn't going to idle at 12 for more than a few seconds. all the gas in the carb gets thrown to the back of the float bowl. i cranked my idle up to keep it running at 12 for a lil longer. as long as i stay on the throttle, it'll stay running.
getting it off the bar is still a b**** though unless i have a fair amount of speed still. my bar's real short, so it sits a lil past 12, which makes matters worse.
Old May 7, 2005 | 12:06 AM
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Re: 12 Bar question?

you guys running stock carbs
Old May 7, 2005 | 12:07 AM
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Re: 12 Bar question?

if found that it stays running while im on the bar for no matter how long im scraping for, and it doesnt want to stall until i hit the brake to try to come off of it. its at the point where i can scrape come off and the bike will stall but with my speed it will re-start when by the time the front tire falls down to the ground. it just pisses me off a lil bit, excpecially trying to do bar tricks
Old May 7, 2005 | 12:08 AM
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Re: 12 Bar question?

Originally Posted by Jon X
you guys running stock carbs
the one that came with my tak kit
Old May 7, 2005 | 07:10 AM
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Re: 12 Bar question?

loook at it this way, when your bike is level all the gas in the carb is where it's supposed to be, at the bottom, when you put it up on the bar, all the gas is trying to go to the rear of the carb, because now the rear of the carb is "technically" the bottom, since you've rotated the carb 90 degrees from normal. it may or may not run that way, dependin on the setup of the carb.
when you bring it off the bar, all the gas that was at the back of the carb, now gets thrown back to it's normal area, but rather violently. all that raw gas sloshing around in the carb gets sucked up thru the needle/main jet, which, for a second, makes the bike run rich as hell. rich enough to stalll the motor.
that's why everyone is telling you to lean out the fuel mixture. if the initial mixture is lean, then when you hit that "rich spot" when you come down off the bar, it'll be less likely to stall.
i keep my idle up higher than normal for just that reason. if the motor is at higher rpm when you come down off the bar, it's less like likely to stall. it's using more gas. some people may have to hold the throttle wide the f*** open to keep em running, some may not.

is this making any sense? i don't know any easier way to word it.
Old May 7, 2005 | 10:48 AM
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Re: 12 Bar question?

i understand that fully, its just a *****
Old May 7, 2005 | 12:50 PM
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Re: 12 Bar question?

nothing you can do is gonna make it run right vertical. it sucks, but it wasn't designed to run that way.

you're right though, it is a b****
Old May 7, 2005 | 01:23 PM
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Re: 12 Bar question?

on another note, if you start doin ape hangers, dont wear good shoes. my shoe laces got ripped apart soo fast
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