So I'm looking for suggestions on what motor/setup to put on a cushman scooter. I know it not a minibike but it's what my wife would like and I am going to get it done. My problem is I don't have alot of the original parts and brackets so I want to go with a clutch or converter. The thing probably weights 4 or 5 times a normal minibike. I don't want a speed demon I just want it to pull the thing around 20 mph. Here's the thing I want it to be key start with a pull start backup. I can make any adapter plates for mounting just about any motor. I'm not opposed to using a predator if that's the best option but I do like the looks of the older flathead. Any suggestions would be appreciated. I just am not sure if a smaller flathead (5or6hp)would pull this beast reliably.