Variator question By yoster (Read 693 times)

[yoster]

Hey guys,

Swapping out my rollers last night with some lighter ones (20g). When I slid the part of the variator off that holds the rollers, I noticed it had like a shield behind it.. it was held in place by three screws. Of course, I rounded one of the three.. cut the top bit off and screwed the other two out to get this 'shield' off to then access the rollers.

Here's my question. I haven't seen this 'shield' on any cn250 kits, any of the 'how to' videos, etc. The dr pulley variator kit also looks like it doesn't come with this 'shield.' My initial impression is that its sole purpose is to hold the rollers in place should your belt break while on the road (not a bad feature actually), or to just keep dust out of there. But, is it really needed? I'm not in the mood to drill out the screw I messed up, so I'm kicking around just leaving the back part off and installing it like I've seen in other videos. Wanted to check with you first though.. smart idea?

Cruiser - You'll find this in your PM as well. Needed an answer this morning; looks like you're busy so I ended up posting it up on here. Thanks!

[damin69]

Hey Yoster,

I ended up haveing to drill out all of the screws on my Jonway Variator. I cleaned all that crappy grease out of it and put sliders in. I did not reinstall that shield when I put it all back together. I was talking with Tom at KidNme and he does not put them on any of his CN250 style motors either. I have not had any issues not running it. It is primarily there to keep that grease they put in there from coming out.

[Cruiser]

Looks like your answer from me and Damin came at the same time and the consensus is if dry run without the cover and if using grease run with the cover.

[yoster]

Thanks guys - perfect info.

One last follow-up question. I know you can run sliders in dry variators since they're "self lubricating." What about regular ol' rollers? Safe to run those dry as well? I'd rather avoid ordering replacement screws for that cover and just run the thing dry if it's safe to do so.

[Cruiser]

From what I have read, the Dr. Pulley sliders are self lubricating because of the composition of the slider material. Rollers are not made out of the same stuff so they require some lubrication. Even with lubrication they do tend to flat spot.

I use a dry lubricant on my Dr. Pulley sliders.