1966 Johnson Seahorse 60HP (VXL-12R)

[robfurman]

First off thanks to all you who helped me outwith my lower unit. All seems to be going good, but I need some advice. When in reverse gear and I push the throttle it only goes half way, is that normal? Also when the lever is in any position it is not engaging the carburetor so I get no acceleration in reverse. I'm assuming the linkage or carb is out of adjustment. Does anyone have a quick fix for this. There are several different adjustments I read about in my Seloc manual, but I wanted to see what you all had to say first


Robert

 

[oldrudedude]

Re: 1966 Johnson Seahorse 60HP (VXL-12R)

Allowing less throttle in reverse is normal. Prevents you from accidentally sucking the stern of your boat under water.

Make sure there is not too much slack in the throttle cable at the engine end. I like mine so it is tight enough enough to get decent response on the engine end of the cable when thehelm control is activated, but not so tight that the throttle arm on the engine does not return to its stop. You really should do a complete link/synch to get it right,but if the throttle arm on the engine seems to be moving a lot before the carb linkage is activated, adjusting the roller may help. There is a broad slot screw just forward of the roller for doing that. My engine throttle arm cam has a mark on it. At idle the centre of the roller should line up with that mark. At idle the roller should be snug to the cam but not opening the throttle butterfly at all.

 

[robfurman]

Re: 1966 Johnson Seahorse 60HP (VXL-12R)

Allowing less throttle in reverse is normal. Prevents you from accidentally sucking the stern of your boat under water.

Make sure there is not too much slack in the throttle cable at the engine end. I like mine so it is tight enough enough to get decent response on the engine end of the cable when the helm control is activated, but not so tight that the throttle arm on the engine does not return to its stop. You really should do a complete link/synch to get it right,but if the throttle arm on the engine seems to be moving a lot before the carb linkage is activated, adjusting the roller may help. There is a broad slot screw just forward of the roller for doing that. My engine throttle arm cam has a mark on it. At idle the centre of the roller should line up with that mark. At idle the roller should be snug to the cam but not opening the throttle butterfly at all.

Thanks, I that seems to of done the trick, I had my hose attachment feeding water to my motor and just ensured I could hear the rpm's going up when I bumped the trottle. I didn't want to rev it up too high as I have read the water attachments are just designed to run at idle. There is an adjustment in my Seloc manual called "Tower to Carburetor", that must be the correct way to adjust it.

Btw, there is a nylon screw adjustment on the exterior part of my motor where the shift linkage attaches. The nylon part is broken off. It seems like maybe that is the idle speed adjustment screw. With the nylon part broken I think it is allowing the throttle to back off too much. I often have to bump up the throttle to keep it running. I did not see that listed in my Seloc manual. Does anyone know if that part is still available? It has a metal screw that is attached to the nylon part.


Thanks,

Robert
1966 Johnson Seahorse 60HP (VXL-12R)