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I have a 2006 Yamaha R1 and I need to replace the primary and secondary throttle position sensor ( TPS), but I am getting confused trying to get the right throttle angle readings for both closed and fully open. If I get it right for a closed throttle, between 1518, setting it to 0.73V, I can get 18, but I can’t get up to the 95-100 range needed for open throttle. 94 is the best figure, no matter what I do.
Which is more important to get right, 0.63-0.73V and 18 throttle angle, or throttle angle 95-100? Or is there another adjustment I can do to get all specs in? Steve Kearl, email
AAnswered by Charles Marvell, Flitwick Yamaha I would go for the 15 to 18 closed throttle values on the diagnostic screen. The full throttle reading in my opinion is not as important as the lower readings, as you simply spend far more time riding around at small throttle openings than full throttle ones. If an aftermarket fuelling module is fitted, or has been fitted in the past, these can restrict the fully open figures in diagnostic mode so I would set it up with the module disconnected if possible, so that any interference can be ruled out.