I like refurbishing older small outboards (3-10HP), and now have a half-dozen in good running condition. They are designed to push small craft (12' jons & shallow V's) at planing speeds, with RPM's around 4000-5000. I'm the only one in my group of pals interested in doing such a thing. My buddies (all 3) have bigger boats. They are, however, very interested in my little beauties as "kicker" motors. Here's what they are looking for in a "kicker":
1) Get them back to the launch when their big motor pukes.
2) Troll for hours, or cruise the shorline for hours, without running the big motor. Burn less gas, etc.
I can see using a little outboard as an emergency "set of oars", but can one reasonably expect a 5HP Gale or 5.5HP Evinrude to push a 17' bass boat or a 20' pontoon around for hours? These guys think they can buy a "kicker bracket" for the motor, bolt it up, and be on their way. Surely one would have to change the pitch of the prop? I can't find alternative props for these old timers. I will give them the motors and even help do the installation, but I don't want to do something that's fundamentally incorrect. Is it OK to use these old outboards this way and just let the props slip, or will it kill them?
1) Get them back to the launch when their big motor pukes.
2) Troll for hours, or cruise the shorline for hours, without running the big motor. Burn less gas, etc.
I can see using a little outboard as an emergency "set of oars", but can one reasonably expect a 5HP Gale or 5.5HP Evinrude to push a 17' bass boat or a 20' pontoon around for hours? These guys think they can buy a "kicker bracket" for the motor, bolt it up, and be on their way. Surely one would have to change the pitch of the prop? I can't find alternative props for these old timers. I will give them the motors and even help do the installation, but I don't want to do something that's fundamentally incorrect. Is it OK to use these old outboards this way and just let the props slip, or will it kill them?