most passions are unnecessary and having three motorcycles in the house that's unnecessary but it sure is FUN. The key as you told us early on was to have fun. Thanks for the info we will start researching ! We leave for Georgia Saturday with a little lay over at the Barber Museum on Sunday!teazer said:I love that idea. It's not strictly necessary, but a good place to start is with a CR93 parts list or shop manual. The clutch cover will need and an insert to keep oil inside and you will need a way to spline the gear to the drum. Check out Ducatis for ideas there and TZ Yamahas just for ideas. TZ uses a boss with external splines that mates to internal splines on the back of the drum. Ducati just bolts through IIRC and that is probably an easier way to do it.
Dry clutch, 4 valve heads and gear cam drive with shim under buckets and Ti valves. Hmmm. Tasty. I wonder what the cylinder spacing is on a CBR250? Just thinking out loud here.....
Maybe an external cam gear box like a CR93 or AJS 7R ..........
Time to start casting heads and barrels........
awesome thank you and thank to the Dutch @cmsnl!teazer said:CR923 is more like a CB92 or 95 with cam drive on the side and really strange, it had a longer stroke, but it has a sweet dry clutch, 4 valves per cylinder etc and is a good place to start dreaming up ideas.
If you can't find one, let me know and I'll see if I can dig out an old print copy and scan the relevant pages
http://www.cmsnl.com/honda-cr93-race-version_model15872/partslist/
http://www.cmsnl.com/honda-cr93-race-version_model15872/partslist/E06.html#results