Join Date: Jul 2009
Motorcycle: 2006 GSXR "250"
Re: Fueling issues.
Being that is has the cat removed, it would behoove you to add a power commander and have it tuned. But, this is after you have your issue fixed.
If you just purchased it and have no history of its maintenance, you should assume it was not done and take care of it. I don't know what your manual calls for at such low mileage, so look in the service manual and take care of it. It does sound like gas may be a factor. You should drain the tank and refill it with fresh fuel, making sure to note if there is rust in the tank. After this, you can run it for a bit and see if it clears up. There are already detergents in top-tier fuels, so it may clear it up. If you've already been riding it with fresh fuel and the problem remains, you should do a fuel flow test as outlined in the Service Manual. It's free and it will tell you if the fuel pump and filter assembly are to blame.
After that, you can look at the spark plugs and the injectors. But, a proper cleaning is not cheap for those. It's around $12-20 an injector, and you have 8 of them.
2006 GSXR 250 with an Akrapovic full exhaust and a flashed ECM. 162whp, 77ft-lb. Slow-lane certified
2000 Honda VTR 1000. Practically a 250.