Satellites 125 engine starts but revs are Iratic when twist throttle seems as though nothing there will rev up in a fashion but not correctly been told throttle body needs replacing?
A friend had a similar problem with his and was also told to change throttle body but it turned out the problem was to do with a split filter. He replaced the filter and everything was fine so worth checking before buying the new throttle body.
Actually might be replying to him as he is Dave too LOL
Dwayne, July 2015
has it had the throttle potentiometer re-initialised with the computer, or go old school and check for air leaks , very common on this model is the inlet manifold splitting