I have a YBR125 06 model (carbed)
It has developed a little problem, where it likes to stall
when the revs get too low (idling).
if I start the bike with the choke, it runs fine... then keeps running as if no
problem... but if I take the choke off it stalls straight away.
The bike doesn’t
seem to have lost any noticeable power when at top speed (it was always
gutless... but then it is a 4-stoke 125).
It does the same top speed it always
did 50-60mph on a run.
As I say, with the choke open it will keep the engine
running without any throttle, but if the choke is disengaged, the bike will
stall at the lights, if I don’t keep the revs above idle (that means keeping
the throttle slightly open).
Major bummer, as was a lovely little bike until this
happened... hence mightily grateful of any advice.
It's ex courier, but has been well looked after during that time... however it does have a lot of miles on the clock.
The problem appeared suddenly after the bike had been left
outside in the rain... although that could be purely coincidental. What do you think?
Thanks for your input.