ATCr125x

[onformula1]

It's not to hard, you just have to watch what the material is doing.

I machined this black delrin to .97 mm and it's all good.


(The end is not cleaned up yet)

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[cr480r]

Nice build.. Always good to see a nice two-stroke swap.. What year is your engine?

I think I would have drilled the frame and used a 17mm bolt... Then drilled the swinger bushings for a proper 17mm sleeve.. Although the case sleeve is how the 500 dirtbike guys do it, and gives you the option of using standard bearings in the future

[Jmoozy27]

Nice build.. Always good to see a nice two-stroke swap.. What year is your engine?

I think I would have drilled the frame and used a 17mm bolt... Then drilled the swinger bushings for a proper 17mm sleeve.. Although the case sleeve is how the 500 dirtbike guys do it, and gives you the option of using standard bearings in the future

The motor is a '94. I could've went either way with the swinger. I chose this way because it just seemed a little easier and I already had all of the parts, minus the bushings. If for whatever reason something gets screwed up, I can always pull the sleeve, drill the bushings, and be back in business. It would have been tough to do the opposite after drilling the frame.

[bkm]

I'm glad to hear the reduction sleeve turned out okay. It wasn't some of my best work, but I learned a lot from that one. If for some reason that fails, lets go Barnett on it and try some bronze.

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[Jmoozy27]

I'll keep an eye on it but I'm feeling good about it.

[cr480r]

The motor is a '94.

Always heard that was a fast year for them. I have a complete transmission, cases, and ignition system if you end up needing parts

[Jmoozy27]

Always heard that was a fast year for them. I have a complete transmission, cases, and ignition system if you end up needing parts

Awesome, I should be okay as I bought the whole bike earlier this year with this build in mind. I haven't even heard the motor run yet. Not worried about that though. That's the easy stuff.

[onformula1]

Nice build.. Always good to see a nice two-stroke swap.. What year is your engine?

I think I would have drilled the frame and used a 17mm bolt... Then drilled the swinger bushings for a proper 17mm sleeve.. Although the case sleeve is how the 500 dirtbike guys do it, and gives you the option of using standard bearings in the future

The CR bolt is too short

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[Jmoozy27]

Been working on getting the motor positioned and mounts machined, never thought I would be using the Pythagorean theorem again. I had to google it.

Everything is lining up good I'm just reluctant to make move too quickly. Got a lot of work to do.

[ironchop]

Nice work

Pythagoras was a Boss!

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[Jmoozy27]

Nice work

Pythagoras was a Boss!

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Its like the only thing that I remember from HS math

[Jmoozy27]

The front mounts are complete. I'll make the top ones tomorrow.

I like the way it sits

[onformula1]

Man that looks factory, consider making the head stay out of aluminum it will cut down on vibration from a non-counter balanced engine.

Slot the hole that bolts to the head so it will not blown the head gasket.

I like the engine angle you used.

[Jmoozy27]

The pipe will be a tight fit, I will flip the top bolts so the threads face the opposite way. I think I will switch the color scheme up a bit. I will be going with a 1987 look. Flash red frame with the tank to match.

[onformula1]

The pipe will be a tight fit, I will flip the top bolts so the threads face the opposite way. I think I will switch the color scheme up a bit. I will be going with a 1987 look. Flash red frame with the tank to match.

That color combo will look even better with the suspension I planned out.

Killer combo......very jealous!

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