2010-2011 GSX1250FA tuning

First topic message reminder :

I've read all the tuning threads etc and was tempted to dive in as mine has had a slight surge at low revs since new. Low = 3,500rpm. It's got a little worse recently and was considering trying the TPS check as a first step. Thinking about warranty - thought best to keep it all above board and got some advice on a bike shop that had a tech there who (I was told) would be able to sort it. I didn't want to take it to local suzi dealer as I didn't want to be told it was normal etc.
So I paid some coin to no avail. I was told this model is non adjustable either manually or electronically....I'm a little surprised.

Has anyone any experience tuning (de-surging) the 2010 - 2011 GSX FA? Am I destined down the path of a PC-V (or other add-ons)?
I'm guessing the bike is lean anyway and this won't be helping the nerts and gerts it gets at low RPM. It's perfectly ridable - just annoying. Bike's done 5,500km.
Any hints?

Well the carb-tune finally arrived (took 3 weeks) and I had a chance to again check it throttle position sensor and balance the throttle bodies. The -C00 position sensor was still good after I'd adjusted it the other week. The throttle body balance wasn't so good. Got it all adjusted and oh what a difference. Took the bike for a good run this arvo from slow and steady to up over 200 and then straight back to slow. Surging sorted. Thanks duhla and others for the advice and write up of how to do it all. Some pics of before and after etc.

Now I've bought myself a JIS #0 screwdriver and I'm building up to do the flys....


Here's how the throttle balance looked at start up. Flattened out a little as it got to test temp.
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This is how I left it.
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And here's the operating table.


Bill.

Floor needs a clean mate.

FUTURE aka Ross wrote:Floor needs a clean mate.

Yes.....it's where the old 92 diesel Holden Junkaroo sleeps. Can you tell I've had one or two oil leaks to fix to get it back on the road? Give me a bike to work on anyday. But It takes a while to get that specific patern. Diesel art!