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I hurt the crankshaft last night at the track :(

  • Thread starter Thread starter Big_T_111
  • Start date Start date
B

Big_T_111

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Went to Saturday night Midnight Madness and ran the big GS. On my 5th pass I hurt the crank. My airshifter did not have enough air in it and it missed the 3rd to 4th shift. I heard a noise on the return road. Pulled the stator cover and the big end of the crank is wobbly....twisted a welded crank. I guess a rev limiter only can do so much. I guess now I will take it apart and send the crank back off for repair. I need to get one of those GSXR outboard ALT. kits and get all that weight off the end of the crank. Or either part the rest of the bike out. have not made up my mind yet.
 
When mine did that is was broken like Jay said. Ended up taking the magnets totally off. haven't had a problem since.
 
crankshaft

crankshaft

Yea it could be broken. I will tear it down and see what's up. I guess I will have to send it off to be repaired. Don't know where yet.
 
Is that an 80 crank. The left end is hollow with an oil passage going thru it on the 80's. They are well known for breaking. I still use the small taper cranks, but have the end changed to a late model small end taper thats not hollow. You may want to check out gardner for crank work. I don't think falicon is into rebuilding them. Gardner has done my last two cranks and I'm very happy with the work. Whomever you go to use a reputable shop. Gardner, HMP, Falicon.

http://grccranks.com/
 
Crank

Crank

It's an 86 Big end crank. It broke at the #1 throw/rod. It was welded already and had the strait cut gear on it. I will send it to GRC to see if they can rebuild it. Also maybe make it a little stronger.
 
If all you did was break the crank consider yourself VERY lucky. The last one we broke took out one side of the motor. Cases, one liner, starter plate, tagged a couple of valves. We use a blanket on every bike thank goodness and no one was hurt. Some of the parts hit the bike next to ours and put some pretty deap cuts into his fork tubes.

Good luck getting it back together. Glad you weren't hurt.
 
Last edited:
crank

crank

I think I am going to check to see if anybody wants parts from it.
 
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