Sv650 K6

i have a straight through exhaust which has been on there a while now but I belive I am supposed to get a ecu upgrade or something. Chap at the garage said it was a Piggy back system. anyone know what this is called and where I can get one from to stop the bike running lean etc. at the mo. I am getting flames (well spitting) when I de-ccelerate with the engine and it is making it even more obvious that it is illegal - cheers

Flames? Mucho coolness!

You can get the stock ECU remapped if you take it to somewhere with a Dyno & the right software.

The 'piggy back' idea would be to stick something like a Power Commander in there, and will cost a lot more than an ECU remap IMO.

I had the same with mine... let me guess... when engine-braking between 5-3k revs you get a few barbles, then 'pop' 'pop' 'pop' 'BANG!'

Sounds and looks great but isn't too good for the bike in the long term. (Although was great with my twin cans seeing a blue flame alternate between each can a few times, followed by a foot long yellow flame and a 'crack'

I went to my nearest bike place that do Dyno adjustment (Rhencullen) and for £70 they could adjust the air/fuel mixture throughout the rev range by 10%. (I think they called it a 'Yoshi' adjustment? Could be wrong...)
This put the air/fuel mix into acceptable allowances where it now very rarely pops, and on odd occasions bangs (one in 10 journeys maybe?).
I also had a dyno print-out with this too.

It was either that... for £400 for a spot on Power-Commander including the set-up, I'm more than happy with it as it is

how can i find my nearest dyno place then matey?

May not stick with the same exhaust though as want to get a custom job done - like the new gsx-r

Originally Posted by george650

how can i find my nearest dyno place then matey?

http://www.dynojet.co.uk/dynos/tuningcentres.php?type=1
^^ there