1986 Suzuki DT65. <br />I purchased a used motor with a gear problem. I removed the lower unit from the engine.<br />I opened the lower unit and removed the Fwd/Rev gears and found several broken gear teeth. No damage is apparent to the case or other parts. <br />Now the problem. I have been unable to remove the 14mm nut retaining the pinion gear to the drive shaft. I have not been able to get the nut to move. Don't know if it is an L or R thread. I eventually damaged (rounded) the nut and need some advice on how best to proceed now. Heat, Dremel, chisel? <br />Also any suggestions in the best place to purchase a replacement gear set would be appreciated.