I have a 1989 Nissan 70 that sat up 9-10 years and just got it back from the shop. They rebuilt carbs, changed plugs, replaced impeller, replaced fuel pump, and just checked everything else. Went and picked it up yesterday. Cost $820. Wasn't too happy, since I told him to call if it was over $250, but I put it in the water yesterday and it ran like it was new. Before took it to the shop I cleaned the fuel tank real good and filled it up with fresh fuel. I also replaced the fuel line and added a clear inline fuel filter. New battery and checked all of the wires. I also made sure it turned over first.