2005 Yamaha 125Z Super Sport from Malaysia - Comments

Try cleaning your carb and checking the top end; it might have a huge carbon deposit in it. Check for worn rings or piston too...

Stock pipe better for long distance or top speed.. chamber best for less than 1km only. Cannot go more than 1km..

Hello. I am interested in your post about your motor performance. I have done many things to make my Y125ZR run at the desired speed, but still failed. I sometimes feel psychologically down, using that Yamaha RXZ carburator, since there's been no changes to my 125ZR's performance. Maybe I should try your method to get things to change. Thanks.

What is the enduro piston?

Hi, I'm from Greece, and I want to ask why the Supersport Yamaha 125zr, and generally 2-stroke motorcycles, have not been on the market since 2002 in country. Please be patient and answer my question; I want to know the reason.

In my opinion, 2-stroke bikes usually produce more smoke compared to 4-strokes.

Try to use sprocket 15-35 415 SSS. My bike can reach 180 on the highway...

It's easy, use an RXZ carb and porting exhaust hole. Send it to an experienced foreman.

I have a problem... My 125z 2nd gear could reach 80km-100km.. But after a few months, 2nd gear can only reach 60km... What happened? Can anyone tell me?

I'm using all standard for my 125z... But if I used RXZ porting carb for my 125z, what is the main jet, air jet etc??

Hi! Does anyone know a shop that sells the disc rotor (disc brake) for the Y125? I have seen Yamaha/YYPang/Motul race bike JupiterZ that has the disc rotor on. It is a bit small, and I think it is a bit lighter weight than the 300mm disc rotor.

And one more thing, does anyone here know any e-mail address of Yamaha Thailand, because I'm trying to contact them and order some parts for my Yamaha X1/Lagenda 110/Jupiter Z, but the e-mail address on their website is not working.

Thanks a lot and ride safe!!!

Please e-mail me at: jrk_rt@yahoo.com