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    Brand new bearings too tight?

    Hey all, just finished installing new bearings into a new repro rear hub for my CL100. They were a bastard to get in, and I'm worried because they're pretty tight. Like, you can't spin the inner race with a finger without exerting some force. However, when you stick a finger into a race on...
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    What's the limit of what can be "trued" on an aluminum rim, and how to check?

    Backstory: I've got a 19" Pro Wheel spoked rim that I got for free. Came off of someone's mid 2000's Yamaha TTR125L. Never really got around to looking at it too hard because it had a broken spoke, sat on the "I'll deal with this someday" pile. I took the tire and tube off today, and it's one...
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    Chamber polishing: How much is needed?

    Do you really need a perfect mirror finish in your chambers or is something that's smooth to the touch good enough? After getting my head soda blasted it was still a bit icky and pitted. Since this is a 100cc head going on a 125cc jug, I realize that the comp ratio is going to be a bit high...
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    Case bearing fun!

    You guys are the best at answering these sorts of questions, so I'm back again! ;D I need to put together a thread about this build I'm working on (eventually) but I have a quick question about one of my case bearings. 6202Z bearings are NLA through Honda and hard to find otherwise. As luck...
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    Weld advice... to grind & redo or not?

    Just got my '71 CL100 frame back from the sandblaster. Looking at the welds, some of them definitely have some contamination, but I was hoping the more welding savvy folks could dish out some advice on how to best handle some of these. Cosmetics vs functionality I'm also a bit hazy on. Would it...
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    Mystery caliper identification- sold as TTR125

    Hey everybody. I know this is a long shot but anyone recognize this caliper? Casting is marked "SD" - no other identifying markings. It's in need of a rebuild and maybe a powdercoating to make it all pretty again, but I just don't know what make, model, or year it is! Kinda makes sourcing...
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    DIY case boring... tips/tricks?

    This is sort of a continuation of my tomfoolery with a CL100 engine. I have a 125cc jug for it now, but the case needs to be bored out by the tiniest margin. I need to remove roughly .04 inch around the diameter, probably more like .05 to get a reasonable non-interference fit. I have 2 cases...
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    China brand 125cc jugs for a CL100... yea or nay?

    Hey all! First post here, did some searching around and couldn't find much, so I figured I'd run it past everyone here. Are the "mystery meat" chinese jugs on ebay worth the money, or am I better served hunting around for a genuine Honda 125cc jug and piston. Not looking for max power, just...
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