I have a two fold question about an older Johnson

[BarryBum]

I am new to boating and have just purchased my first boat. It is an 87 Cimmaron 15ft with an older 100 hp Johnson outboard. I have a few questions about it.#1 The motor and the throttle both say "Hydro Electric Drive" on it. What does this mean? #2 The boat does NOT have electric tilt and trim. How should the motor be tilted? There are about 8 alignment holes on the engine for tilt adjustment, I have tried the one farthest away from the boat and it stood the nose way up and never plained out, I tried another hole about two adjustments in and it seemed to bog the engine down. #3 How responsive should the throttle be? When I open the throttle all the way up, it takes about 30-45 seconds for the boat to respond. You can hear a load on the engine and the boat is SLOWLY gaining speed, but it takes a minute or so to get going. Does this have anything to do with the hydroelectric drive. #4 The throttle feels to me like it is sticking. When you go to throttle down, you can't do it easy. It is all or nothing.<br />The engine has just been tuned up, carbs cleaned and throttle adjusted. Any ideas will be apprectiated.<br />Thanks

 

[JB]

Re: I have a two fold question about an older Johnson

Welcome to the wonderful world of boating, Barry.<br />1. Hydro-Electric Drive was the hydro-electric shifting of the gears.<br /><br />2. If you don't have power trim and don't plan to add it (I would), set the engine so that the anti-ventilation plate, also called the cavitation plate is parallel with the keel of the boat.<br /><br />3. Even an elderly 100 in good running order should launch that little Cimmaron like a dragster. You have either a misbehaving engine or a very badly matched prop. . . maybe both. Ten seconds to plane is sort of a standard, like ten seconds to 60 in your car, of "decent" performance. To solve this one you will need to report mph and rpm numbers to the board. I will be gone for about 10 days.<br /><br />4. Your throttle should respond smoothly, going up or down. Look for a kink in the cable somewhere.<br /><br />Hmmm. I thought this was a two-part question.<br /><br />Red Sky at night....<br />JB

 

[ice_667]

Re: I have a two fold question about an older Johnson

I've got a 1970 60 Horse with eltro-shift. There's a nob on top of the throttle box that adjusts the tension of the throttle at the box. Might help with sticking throttle.<br /><br />Ice