suzuki sv650 K1 carb

[simon1]

Hi
So I sorted my high tickover...was a stuck front choke plunger.....so while the carbs are off I have cleaned the jets etc,which seem ok...float bowls were clean.....I did unscrew the little black box that is on the right side of the rear carb..is this the TPS?...if so is it a case of just screwing back into place ,no set up required?...or is that just the Fi models........and the mixture screw is 21/2 turns out?......thank you

[johnnyrod]

Yes that's the TPS, it does need resetting - either put it back where it was (look for marks to indicate this) or set it properly as per the manual. I did and it made bog all difference TBH. Yep idle screw is 2.5 turns out from LIGHTLY seated.

[R1ffR4ff]

I don't think it's a TPS Johhny.I thinks it's a carb heater?

http://www.svrider.com/forum/showthread.php?t=74632

http://forums.sv650.org/showthread.php?t=55459

Well, here it is - the long awaited pictorial of the Throttle Position Sensor (TPS) Adjustment .

Q: What does it do??

A: Basically, Fuel injected Suzukis have a sensor that senses what revs the engine is at and then tells the fuel injection and engine management systems to alter (basically to start squirting more fuel into the cylinders). MOST bikes are set wrongly and this causes the bike to be jerky at slow speeds (due to the fact that there's not enough fuel getting into the engine & then all of a sudden the fuel starts pumping in faster but by then it's a bit late!! This adjustment rectifies the problem!

[simon1]

Thanks guys...I do keep getting conflicting views though....some say it is TPS and some say its not?...

[Bibio]

yes the curvy has a TPS. its to control the 2nd air valve (PAIR) opening/closing.

[simon1]

Thanks.....is it easy to reset.........sorry havnt got a manual yet.....its on its way! :

[Bibio]

IIR its a matter of checking the voltage with a DMM when the throttle is turned then adjusting the angle of the sensor just like doing the pointy, but unlike the pointy there is no visual guide on the clocks.

[Bibio]

here is the manual.

https://drive.google.com/file/d/1w9aKcCcD--8UZzEQfU6JCsZvgGG42n7S/view?usp=sharing

mods please delete if not appropriate.

[johnnyrod]

The carb heaters are in the float bowls. It's the TPS, I thought it was linked to the ignitor box?

[Bibio]

The carb heaters are in the float bowls. It's the TPS, I thought it was linked to the ignitor box?

you could be right

[embee]

I understood it to be a pretty basic load sensing function used for ignition advance at part load. As said, primitive but useful. It is a potentiometer not just a switch, the only reason I could think for being a pot is for throttle angle sensing which is the most basic form of load sensing in a speed/throttle angle system.


I set mine according to book, there's very little scope for adjustment on the slots.

[simon1]

Thanks for the download manual Bibio