The 10 Series SP and 82cc PM saws had tanks that could not be easily taken apart. Same goes for the large frame SP saws. I have had good success cleaning these tanks with BB's by rotating them in the lathe for an hour or so in each direction (slowly so the BB's roll around) then treating them with Red Kote. You can find Red Kote at O'Reilly's auto parts stores, I normally have to pay $30 to $35 for a quart and find I can get between 10 and 15 tanks treated depending on the size of the tank and how heavy of a coat I put in there.
I have been looking for a photo of the fixture I made for the lathe to rotate the tanks but so far I can't find any.
Mark
I have been looking for a photo of the fixture I made for the lathe to rotate the tanks but so far I can't find any.
Mark