ThumperPaul wrote on 05/27/25 at 18:03:45:


I don't know of any DR650 camshaft that has a 28.3mm steady rest.....the camshaft for the early 1992-1995 DR650 that we use has 25mm just like the Savage.  The later bikes have a completely different camshaft with a decompression mechanism that won't fit the LS650.

It is possible to machine the steady rest down if you have a lathe - but not many folks have that ability.

The good news for DragBikeMike is that the Amazon purchase has a 30 day return policy - he can find out what it is (isn't) - then send it back!!!
 

Not a metalurgist, just a gear-head, wrench-turnin fool.  

No sense getting worked up over these knock-off cams until we have the actual bird in hand.  The dimension on their illustration could be a typo, or they might have a bunch of cams that they screwed up and rather than throw them away they are trying to unload on Amazon.  Who knows, could be just about anything.  Once I get the thing we will have plenty of answers.

Regarding the material, I will try to ascertain hardness with some special files.  That's about the best I will be able to do.

This looks to be a very interesting project.

HAHA WOW!  For $54, what the heck!

https://www.amazon.com/RESV-Camshaft-DR650RSE-1990-1996-12711-12D00/dp/B0DQDQ...

Ooooooof!  I got robbed.