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Removing swing arm - CR125

Started by n10sive, April 06, 2010, 08:58:55 AM

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n10sive

So I'm parting out my son's CR125 with a blown motor. To remove the motor it looks like you have to take the swing arm bolt out. Doesn't seem to want to come out after taking the nut off (insert joke here). I pounded on it some but don't want to beat on it too hard. Is there a trick to it?
BMW R1200RT, 03 636 Track Bike

independent

Be generous with the penetrating oil, apply some heat (hot air gun), then step up & whack it like you mean it. 
No doubt the spindle is corroded/seized, needs some persuasion to break free.  It's what happens to dirtbikes, if they're not religiously maintained.
Use an aluminum or brass drift punch, so you don't mangle the threads on the end of the spindle.
Good luck!

n10sive

BMW R1200RT, 03 636 Track Bike

Justin

can i come over and watch you do this.  Sounds like cheap entertainment :)

jlavallee

Quote from: independent on April 06, 2010, 11:11:47 AM
Use an aluminum or brass drift punch, so you don't mangle the threads on the end of the spindle.

Back the nut off but leave it threaded on a few threads to potect them if you can. Once it has broken loose then remove the nut and finish driving it out.

n10sive

Quote from: jlavallee on April 07, 2010, 04:50:24 PM
Quote from: independent on April 06, 2010, 11:11:47 AM
Use an aluminum or brass drift punch, so you don't mangle the threads on the end of the spindle.

Back the nut off but leave it threaded on a few threads to potect them if you can. Once it has broken loose then remove the nut and finish driving it out.

ahhh! Forgot about that one! Thanks...haven't done it yet so you saved me some mashed threads LOL
(can u tell I'm not a mechanic)  ;D
BMW R1200RT, 03 636 Track Bike

edmunsan

Also try removing shock to relieve downward tension on spindle.
MOTOISM my desease from wich there is no cure.

n10sive

it's all apart now.

anyone need some CR125 parts now? Have some good tires, suspension, brakes... ;D
BMW R1200RT, 03 636 Track Bike

Moto Source


n10sive

95.

I have everything but an engine.
BMW R1200RT, 03 636 Track Bike

Team Gorgonzola

Being shot out of a cannon will always be better than being squeezed out of a tube.
-Hunter S. Thompson-

youngster775

by chance, does it have a 14" rim?
2006 R1-50th,2004 R6 trackbike,2005 GSXR-600,2001 ZX6 trackbike,2005 YZ-250F

n10sive

nope. It's a full size bike..not a mini. Front is 21" and rear is 19"

BMW R1200RT, 03 636 Track Bike

youngster775

Darn! Ok. In kevins first race he bent his rim in half. If anyone knows where I could find a used 14" rim let me know
2006 R1-50th,2004 R6 trackbike,2005 GSXR-600,2001 ZX6 trackbike,2005 YZ-250F