Twist grip on RD-10

[russ]

I purchased a 1951 RD-10. The twist grip does not go back to the shift or stop line. My question is can I remove the gear at the end of the grip turn the grip until it lines up to the stop mark and reinstall the gear. I have sent some pics.As you can see the throttle cable is at its stop limit.Also this motor has a stamped hole on the port side rear.There is a rod that is threaded inside sticking out towards this hole.Just wondering what this may be for. Thank you very much in advance for your time and advice. Russ….

---

Attachments:

[opposedtwin]

Hello Russ, welcome.

The hole and the post mounted to the bypass cover are for remote hookups for the throttle. It is a pretty rare and early (after market) system that was somewhat complicated. It was quickly replaced when OMC
developed their own remote hookups. I have some pictures of what it looked like if you’re interested.

As for rotating the twist grip so the arrows line up better, yes it can be done. I will look in my manual to see if there are specifics about how to put it back together to line up correctly. Again, the cable was also quickly replaced by the tower system because it was a bit complicated and more vulnerable than the tower type system.

I would like to see more pics of that motor. RD-10 models are somewhat rare. Lots of 13s and higher but the 10s and 11s are few and far between.

Scott

[beerman57]

I think a lot of us would like more pics!!

[david-bartlett]

I think the cable is on wrong. Look at the pictures of my RD16. First pic shows the cable in the "slow " position. Second picture is "Fast ".

---

Attachments:

[david-bartlett]

Also the gears on the throttle linkage of the later motors have "index" tabs so they can an only go together one way.

---

Attachments:

[russ]

Here are a few more pics of the RD-10.Hope this might help.Did also notice when I removed the first motor cover that there was no paint on the power head.Can not find a trace at all.

---

Attachments:

[bkrsdoz]

Likely unpainted from the factory. My 1952 JW-10 has no paint either. Doug Penn verified the ’52’s were not painted from the factory.

[Steve D]

quote russ:

Did also notice when I removed the first motor cover that there was no paint on the power head.Can not find a trace at all.

I had a ’53 Johnson 10 horse that wasn’t painted either. I think they started painting them in ’54.
Here’s a nice ad for that motor, thought you might like.
free upload

[opposedtwin]

your RD-10 has the original large exhaust hole on the gear case. usually they’ve been replaced with later smaller versions due to cracking, etc. yes! non-painted power heads are indeed coveted and indeed were factory. clean ’em up and you’re done!

[fisherman6]

I just bought a rough looking 1952 QD-13 at Tomahawk and it has an unpainted powerhead. It looks pretty tough now but it may get some cosmetics too if it turns out well mechanically. I won’t know that for a while. It’s got a few in line ahead of it. The price was right, though, so I thought I’d give it a go.
-Ben

OldJohnnyRude on YouTube

[Author]

Posts