Hey, I looked through the search feature and can't seem to find what jets to pick up for my new oko carb. Its a 30mm D slide carb. I am looking on jetsrus to get the jets i need but I can't seem to find this carb. What jets should I select? I know what sizes I need just not which style to select. Thanks Mason
OKO 30mm Carb
- Thread starter blasterboy1019
- Start date
The OKO 30 mm carb is a "knock-off" of the keihin PWK 28 which was oval bored to 30mm x 28mm venturi.
As long as this isn't the "scooter" carb, it'll use the standard "6mm hex" keihin main jets and the "emulsion tube" pilots out of the PWk28.
Take some pics and upload them to confirm this is not the scooter carb...
As long as this isn't the "scooter" carb, it'll use the standard "6mm hex" keihin main jets and the "emulsion tube" pilots out of the PWk28.
Take some pics and upload them to confirm this is not the scooter carb...
Here are some pics. This is the ebay link I bought it from. 30MM D slide Carb for Yamaha Blaster | eBay
Thanks Mason
Thanks Mason
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That's the PWK 28 knockoff. I bet if you remove the float and look up in the top of the float bowl it even still has the keihin casting mark, the "K".
Order jets for the PWK28 carburetor.
Order jets for the PWK28 carburetor.
same carb i have.. mine is on a 165main with 48 pilot needle in middle clip at 1000 feet above sea level..
I just got my motor back from Ken. Looks great will post pics tomorrow. Port, Polish, Plus 3 stroker, bored .40 over, open air box, k&n filter, +4 swinger, full fmf exhaust, plus 3 timing, Boysen reeds, and mod head. I can wait to break it in and get it running. Just bought Awk rear brake and raptor hydro fronts. One other question is should I switch to a foam fiter? And Im thinking of 162 mail and 50 pilot.
Hey Guys
I also just got that carb for my blaster 2 weeks ago. I am ment to get the motor next week. The motor has been port, 3mm stroker, head skimmed and reshaped. I aslo have a FMF fatty pipe. I got the 30mm OKO from CPW and it is exactly the same as the posted pics. I told them what specs my quad would have, fuel type, engine mod, pipe and altitude. They then pre-jet it with 42 and 150 main, from what I have been reading that sounds to small? What you guys think?
I also just got that carb for my blaster 2 weeks ago. I am ment to get the motor next week. The motor has been port, 3mm stroker, head skimmed and reshaped. I aslo have a FMF fatty pipe. I got the 30mm OKO from CPW and it is exactly the same as the posted pics. I told them what specs my quad would have, fuel type, engine mod, pipe and altitude. They then pre-jet it with 42 and 150 main, from what I have been reading that sounds to small? What you guys think?
Yes sounds lean to me. I'd ended up with 162 main and 50 pilot when i ran my 30mm. Similar mods....
Ya that's what I was thinking. They probably did not even do any jetting on the carb. They where meant to send me a jet kit so that I could fine tune the carb but they did not pack it in. They said they would send it but it has not come yet. I think I def will need bigger jets. 
Yeah same here.Told them my mods and they sent me a 45p and 150m and lower.I ended up with 55p and 165m with needle it came with.Running open air box with uni filter.Jetting is pretty close but right now just worried about the mid throttle range just a tad lean.Will set the needle to richest setting and see what that does but Im sure it needs more taper.
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