hi im having problems with my ybr250 just wondering if you could sell me the spare 1 you had,i stripped and cleaned mine but in the process snapped the throttle position sensor,got another and the engine management went out,but was bogging under high load, stripped and cleaned again ,but this time wouldn't start, not priming,changed the fuel pump but now will start but very boggy and wont tick over,and management light on ,im looking to replace the throttle body as quite sure its that, otherwise I might have to strip tank down and double check the fuel pump,noticed that when you switch bike off I can hear bike priming,not sure if that's right any advice warmly welcomed jim