Purpose of TPS/Selenoid Valve

CHR!S

Member
I was wondering what the throttle position sensor and the selenoid valve on my yz250's carburator do. I have the idea that the TPS senses the throttles position (obviously), but what do they do for the carb?
 

ZOMBIE666

Member
dont know about the solonoid but the TPS helps adjust your ignition mapping in relation to throttle position
 
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