Hi all,
I am trying to locate, without success, a manual or parts diagram for the single lever forward/reverse throttle control on my 1984 F 25. I can’t find anything that looks like it on the web. The Yanmar service manual mentions several model options but neither looks like what I have. Can anyone with a 1GM provide more info or suggestions for what was original to the F25?
Thanks,
Paul
Morse/Teleflex single lever control, M-1093-D2
Happy sailing
Jim D
thank you Jim. I think I am missing a part that allows the single handle to engage the forward or reverse gear once the middle button on the shifter is pushed in. I attach a photo of my installation, both from the outside and the inside. On the latter photo, there is a screw hole below where the throttle pivots, and I wonder if a part has fallen off. I checked the locker and can’t find one, but it might have gotten under the fuel tank, which I have no intention of removing!
You are missing a part at the end of the shaft that engages neutral. Without this part you are unable to cancel the neutral lock. I will take a pic of what you should be looking for.
Happy sailing
Jim D
Here you can see the part that is missing from your throttle control.
Happy fishing
Jim D
Wow, thank you Jim. That’s very helpful. I will scour the cockpit lockers for it.
Paul
PS I considered buying a new control, but then I realized that the handle of most of them would get in the way of opening and closing the starboard locker door (or lid). So finding that part is a high priority.
I scoured the two cockpit lockers (they connect underneath the cockpit sole) after removing everything from the lockers. No luck. I also removed the wooden panel beside the engine, and found a few nuts, including one that looks as though it might have come from the missing part. It looks like the missing part is a an angle bracket, so it should be hard for it to disappear. My only remaining place to look is under the fuel tank, since there is a small opening from the lockers to the engine compartment where the fuel tank is located. I’ll try to vacuum or poke it out (if it’s in there) and if that doesn’t work look for a magnet on a flexible and thin handle which I could poke under the fuel tank.
And if all the above don’t work, I get a new throttle/gear lever mechanism (Seastar CH2100?). To open the locker I will just have to put the throttle in a horizontal position so the lid can swivel up.
Paul
Hello Paul, I suspect you have a secondary problem with your single lever throttle control. My control functions perfectly with the piece you are missing removed. Does your neutral (faucet) knob move freely in and out? With mine fully pushed in, the fwd/rvs lever operates just fine, anything less than fully pushed in keeps the fwd/rvs from engaging.
Happy sailing
Jim D
Aha, so maybe that explains why I can’t find the missing part! I poked around under the fuel tank, and didn’t hear anything rattling there. I used a vacuum also, and a large magnet without effect.
Indeed, I cannot push the knob in completely any longer, and I notice that the screw is somewhat bent, which might well be the cause of the problem. So I need to replace the screw with a straighter one, and see if that works.
Is the pic you just sent of a spare throttle? It seems more worn that the previous picture, so I’m guessing that you replaced it for some reason.
This is indeed a spare unit. I removed it from my Freedom 38 Ketch because the neutral lock shaft had seized. It’s fully operational again.
In addition to replacing your bolt you may want to try to introduce a penetrating oil from both sides. If the shaft refuses to move freely in and out, you could screw a bolt in the back side and use a pair of Vice Grips to pull and push the shaft, while also working it from the outside.
If you have the time and ambition, it would be worth removing the unit and opening it up, to give it a good cleaning and lubrication. The hardest part of removing the throttle housing is getting the splined chrome part off the shaft.
Happy sailing
Jim D