I had a 149 for 12 years. Good little mower. The electric PTO sounds like a monster project. Why not rebuild your old PTO clutch? If the friction material is gone have it relined, get some new springs and enjoy?!
Even if an electric PTO would physically bolt up to the kohler engine in your 149, I'm wondering if the starter generator on the 149 will supply enough current to keep the electric PTO engaged. I am assuming that the 149 still has the starter generator and is not an alternator type engine used in the later 1250-1450-1650 series.
Hi Dave,
Go here and download the service manual. There are linkages under the center panel just in front of the seat that can be adjusted/tightened or replaced. That's a common problem on Cubs.