YanmarYSM12 contols

[bert]

I have a Yanmar YSM 12 with a single lever throttle and gear control which is loose. If I move the lever the whole unit moves. I have no schematic to figure what to fix. Any help is appreciated.

[Tim]

Engine controls are built by outside vendors, and therefore vary widely. The type of engine is rarely significant.

If you can give some additional description of your controls, or a manufacturer name, it might help. The way controls are secured to the bulkhead varies widely, so it's hard to answer without more information. Some of them are screwed in place, others bolted, and some use various clamps, C-rings, and the like.

[bert]

Its a sidemounting with the mechanism in the lazerette.The single throttle control,gearshift lever is held by a detent thruough a housing like an escutchin. There is no apparant way to get the housing off except to pry it which at this point I have not tried. the metal of the housing looks pretty thin.
Thanks for your quick reply to my question.

Bert

[Tim]

It's possible you might find some mounting screws beneath that escutcheon plate. Try carefully removing the plate and go from there.

Or perhaps you need to remove the control lever, which might expose a screw through the middle of the shaft that holds things in. This is just conjecture on my part.

Is your control old? Or is it something newer that might still be available? There aren't that many side-mount single-lever controls out there, so maybe we can track down which one it is.

[bert]

Thanks for the response. Before reading this we figured out there was a setscrew in the housing under the lever which we removed with an allan wrench.
Then we were able to tighten a threaded ring which had been previously fastened with locktite but had become loose.
This took awhile to figure. Too bad I did not read the e-mail first.
Anyway thanks again for the quick response.
The unit is from 1982.

Bert