Any help with an OKO carb?

[therustyaxe]

I got my new OKO carb but I don't know what half the ports are!

Here is one pic. The vacum ports here are already sealed together with tubing.



Am I supposed to use the short tube to do the same thing with these other vacume ports? And will that knob become a choke? What is it? LOL.



Any help would be much appreciated!


Paul

[felliott]

I have had only one of these caarburetors in the shop. The black knob is your choke, the center one (one top) was used for a power valve one the on we had. I feel you need to plug this one. the one one the side is a overflow, the hose on it just hangs down. Hope this helps,

[Rocketdog]

Axe I've been told that the OKO is a copy of a Keihin PWK. I believe that the hose barb in the center front of the venturi is the power valve. Seems that some PWKs have this and some don't. Here's a video on the PWK that might explain some things.

RD

[therustyaxe]

Thanks for the responses guys. I'll check that vid out right now.

[shiftless]

Hey Paul, I just got my 61mm engine right and was wondering the same about the OKO I'm gonna install
Here's how I set mine up


The screw with the spring is the idle adjustment, and the one below it is the mix, I think
I'll let you know if it's right after I install...... it'll be next week sometime
If I'm wrong please correct me....... anyone

Skipp

[therustyaxe]

I don't know about the last photo skipp. That's what I assumed as well. After I took the bowl off the other guys are right. That one on the side appears to be another drain. The one on top will create allot of vacume. It might suck feul up from the bowl.


Paul

[kliff]

When you got to "guessing" in the second pic, is where you went wrong. The verical port, right behind the slide, is a vacume port, for vacume p/cock, test instrument, whatever, I put a vacume cap on that one(Auto Zone), The horizontal port on the side, is the float bowl vent. Hok a length of line to it a foot or longer, and route it down. The vent is necessary for proper bowl level action by the float. You don't want to pull a vacume there.

Supply, drain, and power valve are all OK. Gimme a few minutes, and I'll post a pic of my set-up.

You'll notice I went a step beyond the OKO power jet, and added an adjustable Dial-a-Jet.

[shiftless]

Much thanx Kliff !
I figured you'd see this and set us straight ;D

[kliff]

Glad to help shifty.

[Rocketdog]

And there we go. I thought Kliff was right, didn't I say that?

[therustyaxe]

OK

Thanks for clarifying that Kliff.

I will plug the top one and just put a tube on the side one.


Paul