First and foremost, I am not a real mechanic and any work inside an engine is not something I take lightly... But, after replacing this bushing, I gotta say this is easy and almost trivial work. So don't be afraid to tackle any of this clutch work .. I'll just add this bushing never gave any indication of an issue (and could have run more) and only when I was doing work on the rekluse clutch-pack that I noticed some noticeable slack in the clutch basket when it was still bolted to the bike. Here's the part I replaced - #4 This is the standard(?) design of a clutch that is not mounted on the crank. You can see the crank sitting in the middle all alone with a gear ... That gear couples together other gears on that carrier to spin it. Item #3 is the push-rod for clutch engaging via the throw-out bearing #17, moving #20, the pressure plate. The new bushing, on top, as compared to the original one. I guess the new holes and grooves were added for better oil flow? The bike is not 100% back together but is bolted back up and the slack has been eliminated ... This bike has ~325 hrs? I went inside my other 010 TC250 (slightly greater than 400 hrs) and checked its' stock factory OEM clutch carrier for slack and it has a very slight amount ... maybe 25% as much as this one; not sure if the rekluse has any effect here or not... Highly doubt it but since I have 2 of the same bikes, I had to do a check on the stock configuration bike. -- I'm starting a victory party already for this job ... It really just fell apart it was so easy ... Test ride coming within 7 days I do believe. (The WR250 just can't be denied its' due riding time)