I have a 1998 TS640L that I have been having some trouble with. I went out to the lift to start it the other day and when I turned it over all I got was the starter spinning. The gears would not engage to turn the motor over. I replaced the starter, and now I get the same thing I cannot get the start to sit where it needs to be. I pulled the cover off that is on the front of the motor by the flyweel to see if that would help me set it. When I got to put that cover back on it pushes the starter right back away from the gears. What should I do to get this fixed. I need some ideas as I am completely clueless. Please help.