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Revs itself then grenades!


Capone

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Cleaned carbs, running 330 main jets, air screws were 1 1/2 turns out..

I tightened the clutch springs & screws as far as they would go (mistake... I think)

 

I started it, rev'd fine (Finally) actually Idle'd after I cleaned the carbs...

Its got a fresh top end, I started little revs up to about 1/4 throttle, let it sit, it started revving by itself, then stuck full throttle... for like 5 seconds, then jumped about 5 foot and killed itself. Dunno what caused it to rev, dunno what made it jump into first gear (maybe cause I fucked up the shift star modding it...? anything anything you guys can think of, PLEASE HELP! This thing has been nightmare after nightmare with this shee, I dunno whats going on. Im trying to get it running to sell>

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ok first of all it says you have a 2003 and you are at 80 over. What happened there? Second of all you need to use a torque wrench to tighten those spring nuts. Nothing should be guessing with a motor. And finally what did you do to your shift star? Does your quad start back up now too?

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Now I may be mistaking..... but if the banshee is at full throttle and it magically jumps into gear, dont you think that you would be chasing it down the street? Did you do anything with the shift forks? I have never heard of anything just deciding to jump into gear. Let alone just die when it does. that thing should be running WOT till it either blows up, runs out of gas, or hits something to make it stop. Plus I think that I would have killed it before it had a chance to get to WOT. Its not to good for your top end. But about the slow revving up. I had the same problem for a while. Come to find out that my throttle cable was screwed. Try to replace the throttle cable, or just make sure that you reinstalled it correctly.

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Thats the funny part, since it jumped about 4 ft in the garage, then died after it jumped. I tried to kill it I pulled key out and hit the kill switch. Your guess is as good as mine, what should the clutch springs be torqued to? I didn't try to start it after it happened, too frustrated.

 

btw, its an older motor. I had a ring spin and catch the exhaust port, so I had to go 2 over this time.

Edited by VitoBanshee
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for torque specs look in the cylmers manual. Check your spring on your shift shaft to see if it is still tight. Also make sure your shift shat is not binding up with the shift star.

306082[/snapback]

 

 

IF your talking about the 6 (?) Toomey says 7ft #'s ! I'am a newbie to this so if there are other springs please fill me in .. ( haven't read all of the Clymers man. about 1/4 way through)

 

 

 

ED

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Did you replace the reed gaskets as well? Only other thing I could think of is that you didn't adjust your shifter right. When you put the star back on did you make sure you could shift through all 6 gears? My guess is you didn't and what happened is you weren't actually in neutral. Probably had an air leak which caused it to rev up. The rpm's or the vibration caused your shift star to slip from where it was stuck inbetween gears and dropped it into gear.

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i had a similar prob last year let my buddy ride my shee ... he called me over said throttle was stuck so i hopped on (made sure it was in nuetral ) and started it some how it popped into first gear went vertical on back two wheels dumping me off and flying on the dunes by itself until it hit a truck and some other 4-wheelers .... so just be glad it died and didnt keep going. to make a long story longer i took off the TORS and cleaned out air filters,carbs top to bottom, adjusted throttle cable, thats what a guy at a shop said it coulda been and it hasnt happened since.....

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The plastic on my throttle cable is broke, which could cause a throttle to stick, but I don't think thats what caused it to rev like it did. I reved so high that it was a solid "ZZZZZZZZZZZZZ" sound, couldn't even tell the difference between cylinders firing... has to be an airleak. I do compression/air leak test. Make sure it holds the 6 psi for 6 min. Im going to replace the throttle cable. I made sure the shift star is in neutral, dunno what caused it to drop in gear, but after it jumped it was in first.

 

I need the torque specs for the barnett clutch springs. Any info would be appreciated. Anyone interested in a banshee that needs some work shoot me an offer... ';'

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was the gas shut off in the off postion that would cause the engine to rev as it is running out of gas and you could have play inyour shift starwhich cause it to drop into gear :evil:  :bolt:

306981[/snapback]

 

DId you balance the clutch plates and line the arrows up on the clutch housing when you installed it?

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You really only need 3 barnett springs and 3 stocks unless your putting out some crazy HP. Torque is 20 ft/lbs. New bolts are $2.00 ea. at the yammy dealership. If you're reusing the stock metals then you start with the little nub at the arrow on the inner hub. You then offset each additional plate 60 degrees (there's arrows every 60 degrees on the hub). If you're using the new plates that come with a dirt digger kit then there isn't any staggering to do.

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