I have a good condition 1995 MTD 5/22 snowblower that I have never like the engine on. It has always seemed to be a bit underpowered and is real hard to start and I have broken the recoil on it several times. If left outside in the cold it is impossible to start will never pop. I have a heated garage and I could usually get it going and then I would take it outside and blow my driveway. I bought a Predator 212cc (Honda Clone)this summer for a minibike of mine and I love the engine. It’s powerful and starts on the first or second pull so I decided to replace the troublesome Tecumseh. The Tecumseh engine has two drive shafts. One has a 2 inch pulley (drive) the other has a 3 inch pulley (auger). The drive shafts rotates in opposite directions so I flipped the gearbox and cut off the gear shift selector bracket and re-welded my gearshift bracket with my stick arc welder in the opposite configuration. Now I have 2 reverse gears and 5 forward but the speeds are twice as fast as before. I went to the old engine and unfortunately seen that the drive pulley rotates at half the speed of the auger pulley. What would be the best way to fix this? Do they make a ¾ inch shaft drive pulley smaller than a 2-inch? Or should I put a bigger spinning friction disk in than the one that is in it?. The transmission space can accommodate up to an inch wider spinning friction disk. At full throttle on the Predator engine the number one is ok but the number two speed is a bit brisk and number 3 is like a real fast walk.