kymco 125 is dead

[Guest]

Hi

Iv had my kymco pulsar 125cc for a couple of months with no probelms. then I went out the other morning i let it warm up as normal as it has a manual choke. Then about a mile up the road it started to splutter and then just died.

Then when I got home I had a look and I have a spark but no fuel in the filter. I have checked that it is clear and it is. I have since replaced all fuel lines and still nothing I have replaced the tap coming out of the tank and what I can only work out is a diaphragm. From what I can work out it is a vacuum fueling system. Iv not come accross this before so im stumped. I have also checked the carb and that is clear.

Any help would be great

Thanks

Stuart

[Tango]

Welcome to TMBF mate....pop over to the Newbies section and introduce yourself to the gang when you can....

Is the vacuum pipe from the inlet stub connected to the fuel tap?

[eastanglianbiker]

check condition of vacuum pipe to check it hasnt split only needs tiny crack to stop it workingand of course like tango said make sure its still connected both ends,also check inlet rubber condition to make sure it hasnt cracked up around the small pipe that hose connected to

[Guest]

Okay cheers guys i will have a look tomorrow hopefully this will work.

[Abraxix92]

if the stuttering wasn't there i would look at the battery if its electric start, but better check other solutions as there was spluttering.

[Guest]

I just bought a non functional 125 (Yamaha XT) and managed to get it running - it turned out that it wouldn't start because of a blown fuse, so it may be worth checking the fuse/s with a multi-meter (or just look for visible filament splits). Forgive me if that's a stupid answer for your situation: I didn't own my bike when it was trashed, so don't know the exact circumstances of the breakdown. However, from my (albeit limited!) experience with machinery, I have found that if mechanical damage is not evident, it's worth checking out the electrics...

Hope this helps, although it most likely won't!

[Roadtorque]

The thing about Vacuum carb systems is, that if the diaphragm develops a air leak due to the continual flexing, then the whole system fails

[eastanglianbiker]

shame the op has never returned to the forum after that first day to at least update the thread so it might helps others in the future