Hey, I've got a 2009 250 2-stroke (250SX but I dont think thats important). I bought it from a racer with '5 hours' on it and since then its been used for hardcore trail riding for almost 1 and a half years. All of this on the original clutch parts. How long do clutch plates and springs last for? When you click the bike into gear with the cluch in, the bike tries to move forward an inch and the idle decreases a fair bit. To start it in gear you need to twist to full throttle towards the end of the kick and it doesnt really want to start. The lever is adjusted properly and there is no air in the line, so thats ok. Also, would I need a micrometer or a caliper to measure the thickness of the plates? Thanks, Mike.