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Purpose of TPS/Selenoid Valve

Joined
Jun 30, 2006
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#1
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?
 
Joined
Mar 24, 2006
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#2
dont know about the solonoid but the TPS helps adjust your ignition mapping in relation to throttle position
 
Joined
Jun 30, 2006
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#4
ahhhh! i didn't think about that... thats why the power jet is way off to the side.