help with puller

wfoyz250
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wfoyz250
Edited Date/Time 11/27/2018 3:32pm
Hey guys, with so many pullers to choose from, I need some help identifying what size(mm) type of puller I need to buy to remove the rotor off of my YZ100.
here's a pic of a similar YZ rotor.
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newmann
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newmann 11/26/2018 11:14am
11/26/2018 11:14am
Larry, looks similar to one I had made for a 74 YZ125. I asked my local machinist buddy to help get the flywheel off and he cut a big ass bolt down (lt. hand coarse thread??), and drilled/tapped the center for another one to push it off.

I may or may not be able to find it if you need it...let me know.
PN27416
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PN27416 11/26/2018 2:21pm
11/26/2018 2:21pm
Do you have access to a caliper and a thread pitch gauge from a metric tap and die set?
pete24
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pete24 11/26/2018 2:42pm
11/26/2018 2:42pm
measure the thread size and ill give you a motion pro part number I recently bought three of them that the parts book claimed would take a 79 yz 125 flywheel off I got it off and I have a lot of extra pullers

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newmann
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newmann 11/26/2018 5:50pm
11/26/2018 5:50pm
18mm x 1.5 pitch right hand thread. Need it? Send me an address and I’ll shoot it your way. Send it back when done.


wfoskir
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wfoskir 11/26/2018 7:28pm
11/26/2018 7:28pm
It just so happened I had to pull my YZ100 apart the other day, connecting rod bearing went out.
I had bought a puller kit some years back, it has a variety pullers and bolts. One of the bolts was the correct thread. I just drilled the center out large enough to fit over the crank shaft and started tightening. It popped right off. Unlike my YZ465. The pictures show the size and pitch of the bolt.

wfoyz250
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wfoyz250 11/27/2018 8:35am
11/27/2018 8:35am
Hey guys thanks for all your help and info.
I ordered a puller yesterday!
project racer 11/27/2018 3:32pm
11/27/2018 3:32pm
Most YZ's of that era came with a puller in the tool kit. Just a hollow centered bolt. Still have a few somewhere.

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