Purpose of TPS/Selenoid Valve

CHR!S

Member
Jun 30, 2006
293
0
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
Mar 24, 2006
324
0
dont know about the solonoid but the TPS helps adjust your ignition mapping in relation to throttle position
 

hot125mod

Member
Jan 14, 2007
501
0
it is a power-jet solenoid. which is another circuit to allow more fuel for a better midrange.
 

CHR!S

Member
Jun 30, 2006
293
0
ahhhh! i didn't think about that... thats why the power jet is way off to the side.
 
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