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what "exactly" do i need to convert xr100 points to cdi?

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picked up a good running 85 xr100, but i figure i should get ready to convert eventually.

stator, flywheel, harness, cdi box, coil.

any keyways?, stator cover? what the bits and pieces that i should know?

thanks

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You gotta knock off a little nub on the older cases for the newer stator plate to fit. You also need to weld mounts for the newer coil, cdi box. You also need a stepped key from xr100.com, they are severely on backorder, though. I have been waiting since about Nov., they said it should be only a couple more weeks. You can also run without one. I sell CDI setups on Ebay all the time. username: honeyman21 $199.99 or best offer...:thumbsup:

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For mine on my xr75 frames they had some tapped holes in the frame for the coil. I just made a couple brackets. They look a bit cheesy, but they work.

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You gotta knock off a little nub on the older cases for the newer stator plate to fit. You also need to weld mounts for the newer coil, cdi box. You also need a stepped key from xr100.com, they are severely on backorder, though. I have been waiting since about Nov., they said it should be only a couple more weeks. You can also run without one. I sell CDI setups on Ebay all the time. username: honeyman21 $199.99 or best offer...:thumbsup:

did i miss something on the statement above?

do you mean, just line it up without the offset key? will it hold?

Edited by HappyG

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It will hold it, I would get stepped key, though. Just to be safe, from

xr100.com $25? I think that is the cost.

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You can use a original key to line it up. I did for 10 years or so. Just slide the flywheel on, center it, tap it a bit with socket and hammer, then double check it to see if it's still centered and bolt on with a air impact. Ride for a bit (15 minutes or so) and re-tighten it. If it runs good, then it's right, if not, re-do it. I've only had to re-do it a couple times over the years.

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However, I did eventually cough up $25 plus shipping and tax for a little tiny step key. But's it's worth the piece of mind.

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I'll open up this thread again...

I have an XR75 (-77 I think) that I'm thinking of doing this CDI conversion on. Is there room for the outside pick up? It was a while since I opened it up and had a look how it looks in there, but I guess the pick up must be located on the top right where the cables exit, right? And will that position be ok with the timing?

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As has been noted many times in the past, there is no performance gain with the CDI setup, just reliability. No shame in throwing in a points & condenser, spending the remainder of your $200 on actual performance mods.:p

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