So I bought a used 2008 that has the Uptite pipe on it. It's lean as hell I believe, bucks pretty badly and randomly on constant throttle at cruise. Has a very abrupt forward lunge on throttle transitions. Doesn't like to start if stalled when hot unless I set the fast idle lever first. Generally nasty to hold smooth throttle at the bottom of 1st gear trying to just put along on a trail. I don't think it's had any mods done other than the slip-on. Sooo.. What have you guys done with the Uptite pipe (mine is spark arrestor type)? I know about the 'powerup' resistor for race mapping, so that's on my list. I know about removing and plugging the O2 sensor too. Have you guys removed the CAT too? Have you guys then remapped or will the race map mod balance out if I remove the CAT and open the intake filter? I don't have any local dyno shop that I'm aware of, so a custom remap with the iBeat here in NJ is highly unlikely. I'm not looking for racing performance honestly, but I want smooth throttle response and I do actually like the higher mileage and I know motors will run cooler when they aren't leaned out to death. Any help appreciated.
Grrrr, so the O2 sensor was removed and plugged. So this is more irritating as from what I've read, the bike should be running rich if anything. It must have the resistor as I don't have the flashing neutral light. I may have to find a dyno in NJ and have it remapped. ** Ah, found a local who can fix me up. It's past break-in so it's time to fatten 'er up and remap ** Can't wait to see how it runs when it's all tweaked.
