i have just put a kehin carb on my gasgas 125 and it seems to feel as if the bike is cold on low revs and if i leave it tick over then it starts to die slowly.

anyone know what could be wrong?

cheers,lloyd

What do you mean by it feels cold on low revs, I don't understand. If you mean it lost some of it low end power then thats probably normal as your putting a larger carb on.

What jets are you using?

More info required.

sounds like your jets are the wrong size, i think you have to change them from standard and i do have the sizes i'll find them and post them later

the jets i have in the carb are 50 pilot and 118 main. i have been told by many people that these are the correct ones.

wat i mean by it feels like its cold is that if i just rev the throttle about 1/4 of the way it will sound like its just dying like.

What is the slide no, off pilot on to main it could be this?

What is the slide no, off pilot on to main it could be this?

<{POST_SNAPBACK}>

wat do you mean by that?

I'm no carb expert at all but the pilot controls fuel mix to 1/4 throttle then main jet takes over with the slide affecting mixture. There should be a number on it 31/2 or 4?

Hi Lloyd, Just like to add a couple of other seemingly obvious things that people get wrong. 1 Check the tank breather is fitted the right way round i.e. letting air into the tank and working ok. " Check the rubber flap is fitted UNDER the tank, not obstructing the airbox apperture. 3 Some later model bikes have a homologation restrictor in the mouth of the airbox,remove it but leave the clear filter roof in place.4 Clean the tank out properly a few times and clean the tap and filter.5 If you have a late model bike with the switchable ignition and no switch fitted simply plug the two wires together that come out of the cdi. (orange and black). The switch in sunshine ( racing ) mode effectively does this for you. Get GASSING!!