Removing swing arm - CR125

n10sive · April 06, 2010, 08:58:55 AM

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?

independent · April 06, 2010, 11:11:47 AM

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 · April 06, 2010, 11:16:01 AM

Thanks!

Justin · April 07, 2010, 01:25:34 AM

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

jlavallee · 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.

n10sive · April 07, 2010, 06:02:38 PM

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)

edmunsan · April 11, 2010, 12:30:56 AM

Also try removing shock to relieve downward tension on spindle.

n10sive · April 11, 2010, 08:56:19 AM

it's all apart now.

anyone need some CR125 parts now? Have some good tires, suspension, brakes...

Moto Source · April 30, 2010, 05:29:38 PM

What year is the CR125?

n10sive · April 30, 2010, 06:25:50 PM

95.

I have everything but an engine.

Team Gorgonzola · April 30, 2010, 10:50:23 PM

He said "penetrating" hu

hu

youngster775 · May 01, 2010, 01:05:56 AM

by chance, does it have a 14" rim?

n10sive · May 02, 2010, 06:41:58 PM

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

youngster775 · May 02, 2010, 07:40:21 PM

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

Removing swing arm - CR125

Justin