Jetting the bike

I'm re building my sv650 (CURVY) and was thinking about modifying the performance a bit. I've seen a stage one and three jetting kit for £70 and thought that sounds reasonable. My question is, whats a jetting kit, what will it do to the performance, is that a good price and is it something an amateur could do.

Also in your opinion is it worth doing?

[johnnyrod]

The only reason you'd need to is if you had a freer-flowing air filter and/or exhaust, btu the kit isn't just some bits you lob in, you'll get arange of main jet sizes and a couple of needles. You need a dyno set-up to determine which ones you need to use. So add the price of a can, K&N/BMC/whatever air filter, and add another (???) £100-200 for dyno time, and you might get 5-10% more go depending on which way the wind is blowing. You'd only need stage 1 for this set-up.

Do the K3 cam swap, it's cheap at about £130 and you get an extar dollop of top end with no extra fiddling. Much more worthwhile! K3 intakes instead of yours, put your intakes on the exhaust side, there is masses of info on here about it.