The only issue I had in doing my 50 hour service was that the oil filters are painted on the engine and the mechanic had told me, getting the first one off is usually quite tough. It certainly was for me. After the third time my oil filter wrench slipped, each time costing me some skin and blood, I drove a spike through the canister and used that to get it turning. After I got it done, I saw that what I had been getting cut by was a sharp corner on the muffler mount. I then rounded off the sharp corners so it will not cut me so easily if the filter sticks next time (not supposed to happen after the first one). I was warned to expect the hydraulic filter to be stuck too, but it came right off with my 14 inch handled strap wrench. Too bad that wrench wouldn't reach the engine oil filter.