robsmull Posted October 23, 2013 Report Share Posted October 23, 2013 hi wondering if anyone knows the screw settings for the carb on a scorpa sy 250 06.it wont idle without choke then sometimes it when you close choke it revs its nuts off or just dies Quote Link to comment Share on other sites More sharing options...
t-shock 250 Posted October 23, 2013 Report Share Posted October 23, 2013 Sounds like a full carb strip & clean first. 1 Quote Link to comment Share on other sites More sharing options...
dadof2 Posted October 23, 2013 Report Share Posted October 23, 2013 Could be an air leak either between carb and engine or direct into engine such as crank seals. Quote Link to comment Share on other sites More sharing options...
cactusjack Posted January 14, 2014 Report Share Posted January 14, 2014 (edited) It is definitely leaning out when the choke is closed. You may have a blockage in the idle or pilot circuits in the carby. You need to pull it out and strip and clean it as previously suggested. Including blowing all the galleries out to ensure they are clear of any fouling. Edited January 14, 2014 by cactusjack Quote Link to comment Share on other sites More sharing options...
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