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Discussion Starter #1
Hey all.

Just out of interest, does anyone know the use of a TPS on a carbed bike?
As in, what indication would you get if it had gone bad?
Just wondering as after doing a fair few things to correct a fluttery idle and poor pulling away i'm coming at a loss.
Just interested to hear what the TPS actually does as it's not like fueling is controlled by the ECU, lol.

cheers
 

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sorry, no idea, but i was running the bike the other day for a while before i realized i had neglected to plug the TPS back in. there was no noticeable difference between plugged/unpplugged. so i have the same question.
 

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It's possible. As you said, not much it can really do, and my guess is it takes throttle position to the ECU and it changes or adjusts spark advance/retard?? Huge guess there, but I see it serving no other purpose as it obviously can't do anything as far as fuel metering.
 

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Yeah, my guess would be that it give the computer a calculated load to adjust timing. Otherwise it's just running a base value regardless of load like my 250RR.
 

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Discussion Starter #7
Well, i found out today that the connector on my starter relay i melted through. haha. very VERY poor connections. going to replace both solenoid and plug, that could possibly be it? Dodgy relay causing poor ignition until the revs cause reg/rec to up the voltage going through the system? did find it odd that at off voltage was 12.6, idle 12.1, then 5k revs around 14v
 
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