I need to get into my drive belt area too. I have the PS250 and there is a bolt that holds the cover on that is impossible to get to. If anyone has done it can you please list what has to be stripped away to get to this bolt. The shop manual sucks when it comes to removing the body - not sure you can - bunch of little screws in there that are really buried deep.
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I bet they made freakin' P25S0 so you cannot do anything by yourself.
Changing oil in brakes or coolant takes a whole day!
You can access the bolt from inside with a very small wrench number 8 or 9, I think, and extreme patience.
Otherwise steel frame is in the way.
You need to remove the bucket under the seat and do it from inside. You cannot do it from outside.
When I was reinstalling the CVT cover I did not tighten that particular bolt fully so I can remove it more easily next time.