Normk,Has anyone identified a source for replacement rings for the earlier Gen1 piston?
I've begun looking several times but without success.
Norm, if you are going through all the trouble to replace rings why not just go with a new piston and rings, save yourself some time and stress? If you are needing rings the cylinder probably needs bored so i would spend a little more money and go with all new lighter modern parts......
Over on .net, in '08-'10, Xdragracer or Extreme sourced some "useable" Hastings rings for the 2008 and ups.
Looking at KLR service manual the top 2 rings are the same width for both pistons. (1.17-1.19mm)
Couldn't the expander ring be reused? That just leaves the oil rails.
Where they/he may have gone wrong was to uses Two 'Barrel-faced' top rings. Hasting #46835.
The second one needed/needs to be chisel faced or napier, what ever is the proper terminology.
2008-up Hastings Expander #48890 (.0578inch), TOO narrow for 2007-back.
2008 (Only, Maybe?) Hastings Oil Rails #48354 (.018inch)
Do I remember the 2009's were .020inch???
There may be a difference in oil rail 'depth' (old - new), due to type of expander.
Do you still have the 30+ Wyman Winn pistons?