Read a thread on here from a fella who doesn't really believe the doohickey failure. Not all fail. Here is mine - Another doohickey replacement. 1990 Tengai with 3500 miles. I bought this bike used with 3400 original miles. You can see from the picture that the bolt dug into the slot. No adjustment. With the adjustment bolt completely removed, it moved over about 1/2 inch. Spring was intact. Eagle replacement parts used with the longer of the two springs. Tools, seals and rotor bolt also from Eagle. Adjustment bolt replaced with newer style bought from Arrowhead. Although I purchased new seals, I kept the old ones on as they were in perfect shape. The Tengai manual says to torque rotor bolt to 145 ft/lbs, but upon advise I set it to 130 ft/lbs, which is the standard for KLRs. Thanks for calling me back Mike. Your help is invaluable and you stand behind your product. All the chatter is now gone. Valve adjustment is next.