Throttle lag??

[MSTRS:Me]

Last year I had an issue where I would open the throttle and nothing would happen for a second or three, then suddenly...whammo. I thought this was fixed with a service, which included new plugs and fuel filter. The shop also noted that no 'events' were recorded in the computer and no warning lights came on on the dash. They did say that the throttle position sensor was out of whack and they adjusted it.
Anyway, it has started happening again, at random intervals and for brief amounts of time....ie it will occur repeatedly, everytime the throttle is opened from the closed position, and after a few minutes will stop happening and all will be normal. This is very disconcerting, as it will be right when I need acceleration through a corner, and without that drive things get very vague, as far as tyre tracking etc is concerned.
I think that I have an intermittent fault in the throttle position sensor, but this is impossible to check/confirm (other than by it happening when the test equipment is hooked up).
Sure, I could chuck $200+ at it by replacing said unit, but for a fishing trip???
Is there some way to otherwise check for this problem?
Has anyone else had this problem? Or can confirm my suspicions? Or do the symptoms described point at something else?

[Pussy]

I'd be looking in the direction of the TPS

[tri boy]

I'm a bit behind the times with some of the TPS system's so if I waffle, please excuse.
Most TPS's are basically potentiometers, which will wear. (think back to old slot car sets that you may have had as a kid). The hand throttle's were a crude potentiometer. (the wires would wear, break, and then no power would get to the slot car). Ya still with me?
So anyway, with constant throttle movement, a bike TPS may also suffer a similar fate.(worn contacts).
This might be the intermittent fault prior to failure.
A sensitive ohms meter should be able to pick up partial failure. And borrowing a TPS from a similar model to compare resistance readings, and a fitted trial will confirm this.


maybe......

[Motu]

Very easy to test a TPS - if you have the gear.What you need is an ocsilloscope or a graphing multi meter....and that's why you take it to experts,because they have forked out the money to buy this stuff.As Triboy says it's a potentiometer,and sweeps between .5v to 5v typically - you should see a clean sweep up and down the voltage scale....a faulty TPS will have drop outs.You can watch numbers tumble on a digital multimeter,but you will be hard pressed to catch a glitch.

[dipshit]

www.suzukisv1000.com/faq/tps.htm

This is how I cheaply check/adjust the throttle position sensor on my SV1000.

Perhaps there is a similar method for the GSXR?

[Katman]

With an ohmeter hooked up to the TPS terminals wiggle the wires around in case it's just a fault in a wire or crimped terminal connection.