BobPaul, I just got a 1977 14ft Glassmaster with a 70 HP Chrysler Engine on it. Purchase Price = $500.00 The guy I bought it from said that the choke no longer worked on it. We did a successful test start of the motor with either, however, I don't want to do that out on the water. When it comes to boat motors, I'm dumb because I have never had one. Any help you could give me on this would be appreciated.