1982 yamaha rx50

so i picked one of these the other day its a project and i currently ran into a problem
i cleaned out the carbs change oiled
and got it to start but only ran for about 10 mins and then it died
and the cluster light wont turn on anymore or the bike what can cause this?
does anyone in here have one i heard there pretty rare cant really find much info on this little bikes

 

maybe a fuse?

 

no theres only 2 on the whole bike

 

turned out to be the kickstand would get activated


i have another question so i got the bike to run and turn on
but it runs for a while then it just dies like starving for gas
i give it gas and it just shuts of
and wont turn on till it gets cold
what could cause this ?
read somewhere here that some poeple run into similar problems

 

Could be a bad petcock, is it vacuum operated? Don't know if it matters, but what happens is, the bike runs on the fuel in the carbs, then when that runs out, it dies and has to sit until they slowly fill up again. If you have a "slow" or leaky petcock, that is. Does it have a PRI setting like an XJ? You could try that...

 

how would i know if the petcock is slow or bad ?and yes it does have a pri setting

 

Sounds like a bad petcock. If the bike had been sitting for some time it may just be time to rebuild the petcock. When these little bikes are running right they scream for a little 50. Got mine from a friend. It was in a garage for about 20 years. Used to ride it up and down the street. A lot of parts from a YSR50 motor will work on it too. The trans is really the only difference. Make sure the 2 stroke oil doesn't run out too. From what I understand there were only 2000 of these bikes made. Each dealership got one. The red ones were the most common. I have the black and gold version.

 

nice mine is the red and gold
and i also picked it up at a friends garage had been sitting for 15 years i will look into that today

 

A bit off topic but can anyone tell me where this goes? Thought I knew: side cover. But looking again and again... don't think so.

 

That is an oil retention block that goes into the crankcase, behind one of the engine side covers. I think it's on the left side of the engine for that one; behind the shifter cover.

In the future it would be best to start a thread, instead of digging up an old one that's not related to your problem.

 

Thanks I'll look at the left side again. And again. Lol

*Only chose this thread as it came up on a search and didn't figure a lot of love for this bike on this forum really..and I might find the owner above.

 

Understandable. It's not that we don't love this model, it's just a matter of it being such a rare beast. In the U.S. it was a one-year-only promotional bike (1983, though the bikes were mostly built in '82) and not every dealer got one. Those that did usually only got one to either sell or raffle.