robertthomas

in Spain where I live there is only 95. I put 1.5% oil as recommended by Beta. I still have problems with unstable idling.

Not exactly !

Hello everyone. Have you tried any modifications to the Keihin 28 PWK carburetor? This involves enlarging the air and fuel ports.

I'm still on my idling problem. I can't describe the noise the engine makes. On the other hand, when the idling is about right at a slightly high speed, I just have to accelerate by opening the handle, for the revs to drop and the engine to stall. So I have to set the idle to a high speed and it's not easy to drive in the zone.

.Hello Lineway, thank you for your valuable advice. I removed the flywheel cover and looked at the play, there is no play and I prefer it because changing the bearings and gaskets of the engine is not very simple. I removed the carburetor again and cleaned the throttle cable. I put the 55 jet back and set the needle to the second notch. I will see if it works.

Hello everyone, I replaced the diffuser gasket as recommended by adrider. Unfortunately this did not improve the situation. I often need to adjust the idle speed either increase it because the bike stalls or reduce it because the engine runs too fast. Does anyone have any ideas?

hello friends, i think i solved my problem. i looked at the death barble joint and cleaned it. i unblocked the small holes. i also changed the idle jet. i went from 50 to 55. the bike holds the idle and i was able to lower it without the engine stalling.tomorrow I will continue the tests. Thank you already for the precious help you have given me. I will finally be able to have fun without fear of stalling

Hello, I have a beta rev3 125 cc Keihin 28 pwk carburetor. I have an idle problem. I set the idle to a normal speed and very quickly the speed drops and the bike stalls. Sometimes it's the opposite, the engine accelerates for no reason which forces me to lower the idle. . Do you have any idea?

Bonjour a tous et merci de m'accueillir sur ce forum. Je suis retraité et je viens de m'acheter une beta rev 3 125 cc de 2008. Je débute et je souhaite faire de la randonnée et quelques zones faciles. Hello everyone and thank you for welcoming me to this forum. I am retired and I just bought a 2008 beta rev 3 125 cc. I am a beginner and I want to do some hiking and some easy areas.