I have a tec 3.5 power sport I'm not using. It was mounted on a Sensation go-devil (angle mount bike) that I bought for some parts. It does have a bowl carb, which will work but the diaphragm carbs are a better choice.
it has not been run in awhile and the carb will need cleaned out, etc, no internal problems. it does have a pulley clutch on it which may or may not work for you. Has good compression etc..
If your in WI and you paypal me, I can sell it for $65 shipped UPS.