Can you solve this problem? HORNET

[sasas]

Can u take out the spark plug and post a picture in here?
when you say bog down..can u describe when does it happen actually and can it be replicate? early rev? middle? top end..or does it happen when u fast throttle it from 1st gear.? seems like a carb issue...need to do some setting on it.

[nzspokes]

Before you sell it to some poor sap, give it a proper comp test. Get it done by somebody that knows what they are doing. Dont tell people its just a valve adjustment if you dont know.

[AllanB]

Sperm in the airbox?

[Autech]

Interesting perspective ... certainly sounds like the issue it could be having. Not sure what air filter it has, whatever it came with. I checked it, looked clean enough so I put it back. Where can I get a suitable air filter to try?? Please? Best lead I've had...

Definitely worth a look as well as the compression test mentioned by the guru.

The reason I say this is as there is a few flappy things in the VFR's airbox which people from time to time remove and instantly regret it. This causes the bike to run as you have described, turns out the Honda chaps put them there for a reason! So check that there has been nothing removed from the airbox that should be there and that a filter is correct. Some googling should put your right.

Good luck lad!