Yes, you can complete this upgrade. There is wealth of information on line regarding the identification of the balancer shaft lever [doohickey], and it's replacement. A good place to start reading:Hello,
Just bought 2007 used klr 650. Reading about this dohickey proplem. What is it? How do I fix it? Where do I get the parts?Can I do it myself? Bike has 3200 miles.
Thanks in advance
The answer is "generation-dependent."I'm planning on doing the doohickey upgrade one of these coming weekends. Is changing just the torsion spring a sufficient upgrade? Is swapping the doohickey itself vital? are changing gaskets a must? is changing to a brand new rotor bolt a must?
I didn't find this to be true. For me it was pretty straightforward. It takes a bit of elbow grease to because the spring does everything in its power to stay put, but I think it is pretty simple.The answer is "generation-dependent."
Generation 1 KLR's (before 2008) have a maintenance history of doohickey (idler shaft lever) failures; Generation 2 (2008 and later) have no doohickey failures of note, but . . . spring tension surfaces as an issue.
I believe torsion spring upgrade involves considerable wrenching, in contrast to ordinary coil spring replacement.
So, if I had a Generation 2 KLR, I think I'd inspect spring tension and replace the OEM coil spring if lacking. With no latter-day doohickey component failures, and no maintenance issues traceable to the newer, factory-updated doohickey, I might just dance on with who brung me (while acknowledging better fit-and-finish of aftermarket parts).
If I had a Generation 1 KLR (which I do), I'd replace the doohickey and install a torsion spring (which I did; all in, new rotor bolt and everything).
I've found Eagle Mike's parts and service most satisfactory.