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Post by reveeen on Jan 7, 2011 7:04:21 GMT -5
Anyone had any experience with these? The back story: I have two projects on the go (it's -20 here this AM with 2 feet of snow down). One requires about a 19-20 mm carb, the other a 24-26 mm. My intention for the larger one was a flat slide Mikuni, with maybe a Delorto in the smaller application. If I can use a pair of OKO carbs (a 19 and a 24) all of a sudden the number of parts "on hand" decreases substantially (jets and needles). So, if anyone has anything to offer, I would appreciate it. Thanks. FYI: www.treatland.tv/OKO-19mm-carburetor-p/oko-19mm-black.htm |
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Post by Thebatman on Jan 7, 2011 7:23:36 GMT -5
To my knowledge, the oko carb is an exact replica of the kiehin carb.. The jets are suppose to be interchangable.
I have the oko 24mm but have yet to use it, so i can learn something here myself.... :thumb:
I do know several guys that are running the oko with no issues..(thats why i got one). (1's on a race engine to)...
I think you'll be alright with your choices...
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Post by reveeen on Jan 7, 2011 8:53:41 GMT -5
Thanks for the reply!
I might also add: I intend on running pre-mix, so it is my understanding the power jet option is "out".
The thing I find odd is no one is saying what jets/needles a new OKO ships with, so you are almost obliged to buy, at the very least, a jet kit.
(keeping in mind that none of my local dealers stock jets any more, they are selling fuel injected bikes, and see no reason to stock jets?)
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Post by 90GTVert on Jan 7, 2011 9:05:01 GMT -5
Even if it's not listed, you can contact the sellers and ask them jet sizes. I had a 21mm OKO years ago, but I can't remember what the jet size was for that. 100ish... but you already figured that I imagine. lol I didn't like the OKO, but to be fair I was new to tuning that style of carb and engine at the time. I use Dellorto carbs on all of my scoots now... 21, 24, and 25mm. The problem there is that the 21mm and under Dells use different jets than the larger Dells.  |
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Post by Thebatman on Jan 7, 2011 9:51:08 GMT -5
Of course you could DRILL the jets out yourself... i can post a pic of my "kit" if needed.. i did find that somewhat easier than digging for jets..  (my oem carb i never could find jets ANYWHERE). |
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Post by 190mech on Jan 7, 2011 19:07:33 GMT -5
Ive researched at the OKO's a lot and think they would be a good lowbuck chioce if you are willing to understand all of the jetting systems and know how to adjust them for your project.I may try OKO's someday,but I'm still a Mikuni man now...
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Post by reveeen on Jan 8, 2011 10:55:00 GMT -5
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Post by 2strokd on Jan 10, 2011 10:17:01 GMT -5
I have a Kiehn 28 flatslide.... It is a good piece for bigger apps. Not up there with Mikuni, Dello and such but good enough if you got the skills to tune it and dont mind a little fab work, that was my case anyway...The throttle slide were the cable end hooks in is a pisspoor design. Other than that i was happy with mine, i think the stock bottom end (cases) held me back.?. The stock case is very restrictive and i personally dont think a BIG carb is useful at all with one. A 19-25 is plenty with a stock case IMO...
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Post by reveeen on Jan 11, 2011 7:23:17 GMT -5
Thanks for that!
I had pretty well determined 28mm was "out" for me, as I figured it would be too big, my applications being 70cc and 90cc. Don't get me wrong, I would enjoy a big honking carb, but rather than waste the effort, I would be a bit conservative.
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(my oem carb i never could find jets ANYWHERE).
