rg250 engine problems

[gregh]

Have you had any luck sorting your RG?
Ive got one that Ive fitted 1mm OS pistons & rings, its an 84 with no power valves.
It runs OK but is real weak in the mid range , 1/4 to 3/4 throttle, then when the revs get to around 6500 it takes off - smoke & noise everywhere.

Im going to try raising the needles, at 1mm overbore its nearly 5% larger so maybe running lean
Also I'll have a look at the electronic air valve, it bleeds air into the carb emulsion tube, but cuts off at about 6500rpm
good luck

[ready4whatever]

depends why it was parked 10 years ago. if it was parked going and fine. then it wouldnt be the engine seals would it