sv650s sputters like it's running out of gas open throttle

Hi guys i currently have a sv650s that I am test driving and it sputters after like 30+ minutes of riding whenever I full throttle it, like it's running out of gas. I stopped once and topped it off and it stopped then 30 miles later It was at it again. It still cruises ok, but when I braaaap it I feel like this potentially awesome bike is not worth trading for and I really want it to be! The guy did mention that it needs a new fuel filter, could that be it? Also he has custom fitted a two brothers exhaust that probably wasn't the exact match exhaust slip on doe his bike he said he had to kinda wedge it in there and there are a few sliver slits in the exhaust pipe itself where said it's leaking... I'm assuming a weld or exhaust wrap could fix elthe back pressure thing.. Any help? I have bike til Friday before we make trade

[maviczap]

Sounds like fuel starvation of some sort or even wet front plug syndrome?

But you don't say which Sv you have & where you are

sv650s, austin texas

2005 sv650s austin tx

And another question, cause my bike is my only ride Ans I really want this one, would it be worth to trade now and repair later in y'all's opinion? The bike will cruise and stop and start right up and then the fuel issue subsides, it's jus like freaky. Like when you meet someone's parent wearing all black and riding a motorcycle and despite what they've heard about you and stuff they are freaked out alittle till they meet ou and relLize you beeZa a good man.

[ophic]

Just wear dayglo textiles. Then the parents will be blind so it won't matter.

..yeah... I'm gonna trade the bike, just rode like 30 miles and it was fine. I just wanna fix the issue cause I wanna braaapp all day! ( i'm switching from a cruiser to this, so its lots of fun)

How can I fix this?

[DJ123]

Originally Posted by Solafide

How can I fix this?

what are you doing when you go to full throttle? What gear are you in? What revs are you at? Twins will be gutless if you are riding with too little revs in a high gear. The SV powerband doesn't really start till 6-7K.

I'm just crusing, and then I just open it.. I'll monitor the RPM to gear ratio.. I rode about 30 miles today and it didn't do it.. It just bucks like the same thing when a bike is running out of gas.. Kind violent.