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  1. Will scott

    Best carb for Z155HO Stock?

    There's the differences
  2. Will scott

    Best carb for Z155HO Stock?

    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...
  3. Will scott

    Yx 150/160 rings issues

    Yea it's very weird everybody tells me its unusual for tb and the oil brand is very expensive to its 55$ a bottle witch is alot for 4 litres, I was running just shell mineral 20w50 car oil it my 125 n I got about 130 hrs before it started smoking n that oil was 25$ a bottle so I have no idea...
  4. Will scott

    Best carb for Z155HO Stock?

    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...
  5. Will scott

    Yx 150/160 rings issues

    Hi I am having issues with the piston rings in my 160s, I've had 2 now all of them keep wearing out the oil rings in about 10 to 15hrs of use one of which was a tb head kit with the 60 mm high comp piston. I just bought a cheap yx 150 with low hours and the rings have gone to in 2 rides to. I'm...
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