htrdoug Posted January 13, 2020 Report Share Posted January 13, 2020 21 hours ago, nigel dabster said: jetting wont make it snappy. I think what happens is if the low throttle settings are off (pilot,mixture screw,slide) then once it comes up onto the properly set midrange(needle,needle position,spray nozzle) it can snap to attention rather quickly. Quote Link to comment Share on other sites More sharing options...
nigel dabster Posted January 15, 2020 Report Share Posted January 15, 2020 On 1/13/2020 at 10:50 AM, htrdoug said: I think what happens is if the low throttle settings are off (pilot,mixture screw,slide) then once it comes up onto the properly set midrange(needle,needle position,spray nozzle) it can snap to attention rather quickly. yes id call that strong mid range and poor running up to 1/4 throttle. (not snappy and most 250s jetting will be close anyway?) Quote Link to comment Share on other sites More sharing options...
nigel dabster Posted January 15, 2020 Report Share Posted January 15, 2020 On 1/13/2020 at 7:32 AM, nzpeterb said: You note your bike is on standard gearing of 10/41. In New Zealand our Gas Gas was supplied with 11/42. The taller gearing may smooth the response. Also make sure you have a slow throttle fitted. If a Domino throttle is fitted this would be a black tube under the grip. A slow throttle has full travel over around one third of a turn, while the fast throttle movement is the same throttle opening over a quarter of a turn. Hope this helps. Regards, Peter. avoid slow throttle Quote Link to comment Share on other sites More sharing options...
perce Posted January 20, 2020 Report Share Posted January 20, 2020 (edited) Try a middle box from another bike Edited January 20, 2020 by perce Quote Link to comment Share on other sites More sharing options...
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