Hello and I have a bit of an issue

[min200]

Firstly hello everyone and thanks for letting me join the forum.
I am hoping I can pick your collective brains on a running issue I have on my 2003 SV650S.
It starts and ticks over fine with no problems, but when you try to ride it and open the throttle it literally hiccups, all revs drop out (a bit like fuel starvation) and back fires as well.
So far I have done the following to try and repair it:

Replacement Spark Plugs
Replaced injectors and rack
Replaced the fuel pump
Checked all vacuum hoses and all are good
Checked all electrical connections and again all are good
Check fuel line in for degradation and kinks. All good.
Replaced the fuel and put red x through it

So basically I have redone the entire fuelling system to no avail, the issue still persists.

I can only think that we are now heading into the electrical side of things but I don't want to keep throwing money at it willy nilly.

Any advice from you good folks who may have experienced a similar issue would be much appreciated!!!

[Seeker]

Welcome.

In the absence of anyone knowledgeable suggesting something, I read that the TPS setting can cause poor off idle running. The good news is that the SV has a built in test/adjustment program built in and someone has kindly posted a step by step procedure here:
https://forums.sv650.org/showthread.php?t=55459

...and that's exhausted my ideas, so I hope it works

[min200]

That's brilliant thank you!
I will start with this and see what happens. It cant hurt can it!

[Bibio]

bad battery and or rectifier/regulator (or the connection too).

[min200]

Ok then, firstly a big thank you to you all for your help, it has been invaluable!

I reset the throttle sensor and also found a loose connection on a plug. Having sorted both of those the bike now runs as sweet as a nut

So thank you again.