The machine will not shut down when I push the lever all the way forward. It’s really close but not enough. I have to engage it in gear to shut it down. Do I need to disconnect linkage and manually move rod to shut down and if that does not work do I need to go into the decelerate housing to see what’s going on? I have the service manual but would like to know if there is anything else I need to do. Thanks

I would start with looking at every pivot pin in the linkage. A little wear in each one will add up to enough lost travel to keep it from traveling far enough to shut down. Might get by with some new pins is all that is needed.

Hi, jsorochan.
'Kwestyun' - can you shut it off by pushing the throttle lever on the governor a little further?

Why I ask this is that, to the best of my knowledge, there is no real limit on the movement of the actual throttle lever on the dash. As I understand it, the movement of that lever is limited by the movement within the governor. If my memory serves me right - 1971 memories - there is a pin fitted into a yoke within the governor tower that can become worn to the point where it will no longer move the rack all the way to the shut-off position.

Old Magnet or somebody else may be able to provide a schematic of the 'guts' of that governor tower.

Just my 0.02.

Thanks Deas Plant. From looking at the picture the linkage goes down behind the what I think is the decelerator housing just right of the filter housing. Where do I access to check?

Hi, jsorochan.
You are correct about where that linkage goes, in behind what you are calling the "decelerator housing", otherwise known as the governor tower.

Start the engine and then move the throttle lever at the dash to the stop position. If the engine fails to shut off, try moving the lever at the forward end of the throttle linkage on the blind side of the governor tower further to see if you can shut off the engine that way.. If that doesn't work, the issue is likely inside the governor tower.

Check your service manual for what is inside that tower and how to disassemble it without having a whole collection of 'springs-n-things' flying out at you.

Just my 0.02.

How restricted does your throttle lever feel by hand? My 6C had some severely worn bushings and throttle shaft that were causing me a similar problem. Two bushings in the dash panel and a new shaft had it smoothed out.

It doesn't feel restricted to me but I'm not an expert on this machine. I'll double check the linkage and un hook the last one before it goes down into the governor to see if that works.