I recently bought a 00 sp500. It doesn't accelerate past 30 mph. I have read on here that it could be me clutches. I don't mind spending the money to buy the rebuild kits but I just don't want to throw money at it not knowing if that's the problem. Does anyone have pictures or video of worn buttons. I cant find any on YouTube and I'm not sure what to look for. I'm also wondering if there any other possibilities that cause this problem. Thanks!

 

This what some of the worst ones look like when ground down versus new ones. The manual has step by step pictures on replacing them and also preloading the helix spring. That is if you have the non ebs system. The ebs has rollers that can do the same thing.Both were offered that year. Dirt Cheap Yamaha, Polaris, Suzuki & Kawasaki OEM Parts & Accessories – Cycle Parts Warehouse Having the manual is the best thing when you tackle any job like this.http://visit.tradebit.com/visit.php/...75/264163829/9

 

I figured out the problem. The guy I bought it from had the timing off one tooth and the carb diaphragm wasn't installed properly.

Opt I have another question for you. While I was inspecting the cam and timing I noticed the timing chain seamed a little loose. Not loose enough that it could jump timing but is that how these motors are? The tensioner seems to be working properly. The previous owner said that he replaced the chain guides but I haven't pulled them to confirm.

 

Timing chain should be tight,very little side to side play. When cam timing is off it's usually because people have been into the engines,usually replacing cams. This model does fall into the years that there were cam problems. If chain needs replacing,the tensioner bolt has to be loosened and removed,spring pulled out and tension arm pushed all the way back into its body. You can use the 3 plated links on the new chain to time things up. Single plated link lines up on the crank sprocket mark and case mark,the other two plated links line up with the dots on the cam sprocket. This is simplest way to time a 500. Tensioner body is then installed,spring inserted and then bolt is tightened. After stator,flywheel and recoil are back on,valves checked/adjusted,then slowly pull the engine over with the recoil. That allows the tensioner to adjust. Here's some good pics on cam timing from another member. https://atvconnection.com/forums/pol...ml#post3305250