Best carb for Z155HO Stock?

Discussion in 'Chinese Mini's' started by Jope22, Nov 30, 2019.

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  1. Nov 30, 2019 #1

    Jope22

    Jope22

    Jope22

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    Hello, once and again! I know there are many threads about this topic but just would like to ask.
    What carb do you guys prefer on z155ho engines? I have looked on ebay at Oko26, PWK 28, PE28 and then the priciest one Keihin FCR 28. I would like to hear + and - about carbs what you run. I have molkt 26mm and its not good. Sometimes the float gets stuck?? so gasoline comes out of overflow and when i knock the carb it stops. im running 2 fuel filters and have opened the carb 4 times because this issue. Keihin fcr might not be my choice because im looking for OK fuel consumption. I ride long trips. Im getting 55-75km from my 3.5l tank with molkt 26mm. Sorry for bad grammar i am not native speaker of english!
     
  2. Nov 30, 2019 #2

    Jope22

    Jope22

    Jope22

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    73505136_565606020868053_4563085247252974591_n.jpg welp decided to add one photo of the engine
     
  3. Dec 15, 2019 #3

    Will scott

    Will scott

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    I got a oko 26mm runs awesome with my z155 good power, was a big upgrade from the mikuni I was using, I've used the pe 28 on my 190 n its ok but seems to have a shitty needle n seat n gets stuck n leaks, could just be a dud but the okos have better airflow any way might get a 30mm 4 it. if u want more top end n power I'd go a oko 28 make sure it's a good one not the cheap oko copys with the power jet there a prick. Hope this helps :)
     
  4. Dec 16, 2019 #4

    Jope22

    Jope22

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    Thanks for the answer! I think I need more top-end power so maybe going oko 28. How do you make sure its genuine oko? There's lot of those maikunis/okos on eBay for 20$ and I would not risk my engine on that carb because the slide could get stuck and stuff.
     
  5. Dec 17, 2019 #5

    Will scott

    Will scott

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    They wont have a power jet, there's alot of different opinions on the cheap oko carbs all i know is the power jet I can't find jets for so that isnt tuneable I'm currently giving one a go on my yx 150 the jets where way off 120 main and 48 pilot, 100 n 36 is usually stock n works well so i had some spares so i put a 104 main and 37 pilot should be ok, was 30 bucks so worth a try i thought ‍genuine okos from dhz are 120$. If u can wait ill let you know in a few days when its not 46 degrees Celsius outside, and I'll let you know if the one I gets ok. But either way if u have the money I'd still recommend the genuine oko I've had mine 2 years n no issues runs great very snappy and great performance. I'll post a picture of the differences if I can
     
  6. Dec 17, 2019 #6

    Will scott

    Will scott

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    There's the differences
     

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  7. Dec 18, 2019 #7

    AntNZ

    AntNZ

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    get a oko 26mm, the 28mm oko is a prick to tune, check out the "for those about to rock an oko" thread in the tech section.....
     
  8. Dec 18, 2019 #8

    Jope22

    Jope22

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    Thanks for answers, Will and AntNZ! So I'm going to get either the 26/28. I know there's Quality issues on the eBay okos but if they work then I would try. Some of the Chinese okos the jet holes weren't drilled trough so not good. I think that the oko would be betterer choice than PE26 or PE28 because it sounds good and everybody says that they have a good throttle response.
    Isn't that power jet meant for 2 strokes? I think it's useless on 4 stroke so doesn't matter
    I am not in a hurry so I can wait, currently winter in Finland.
     
  9. Dec 19, 2019 #9

    AntNZ

    AntNZ

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    get the 26mm, 28 is too big on a stock engine, ive got a v2 head on mine and still run the 26mm oko
     
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  10. Dec 19, 2019 #10

    Jope22

    Jope22

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    Ok, thanks! What jet kit should i buy? i think 100-122 jet kit would be OK
     

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