alannsr250 wrote:stick this in the nsr discusion forum.
what condition is the air filter in and how do you know its unrestricted? imports are restricted electronicaly depending on the country it was imported from. others are restricted by a plate in the inlet manifold between the rubber and the reeds its got a small hole in it restricting the flow of mixture. and others have a washer in the exhaust that you can drill out and make smooth.
does the valve work on the engine side ie move on the engine side when you rev high? the cables degrade on the 125's and can get stuck.
wha oil have you been putting in? u should use the best 2t injector oil yu can find and make suer no waters in it.
have you changed the spark plug? should be first thing you try?
does the choke fully disengage on the carb side? take the choke out and check its movment on the cable?
first of all thanks for response
air filter cleaned and ok ,it,ll do nearly a ton on a good day so assume unrestricted,valve moves when revved high up,i,ve been usuing fully synthetic scooter oil!!!!!! (jaso fc/iso-l-egd/api tc+)
will change plug only cleaned it up but is fresh though.
will check choke aswell
is there an easy way to move this post to the other forum
thanks again