| Author | Message | ||
     Bartimus |
Has anyone changed out their exhaust on an '08 yet? I know you don't have to do a TPS reset anymore, but what about the ECM? I had to get a race ECM when I changed out the pipe on my XB9, what do we have available for the '08's? I don't want to run my brand new bike lean, but the sound, or lack thereof, is killing me.  | ||
| Amerikian |
I put on the Special Ops and K&N filter on my '08 Uly before i even rode it off the lot. I rode it for about a 600 miles until I got ahold of ECMSPY. I never checked the plugs to see how rick i was running, but seemed to run OK. There is this guy, Xoptimizedrsx from Buelletinboard.com, who offers a "race" eeprom that is based on the K&N filter and Drummer exhaust. He dyno'd it and tweaked it himself, front and rear cylinder have individual fuel maps. I paid $100 for the eeprom and loaded it onto my '08. I worked with him via email until i found the best mix for my bike. Its only adjusting two values (closed loop & wot) so its pretty easy to do. Bike runs really nice now and pulls like a banshi. The ECMSPY cable was about $35 with alittle soldering and swearing, and ECMSPY is free. As long as you only put on an exhaust similar to the Drummer or the Special OPs and add a K&N airfilter, Xopti's EEPROM will be the best "race" ecm available for the '08s. PM me if you need more info. Ian | ||
| Desert_bueller |
Hi Ian How did the mods influence the warranty? The dealer over here is full of crap and says that if I change the pipe I will void the warranty. After a few arguments I managed to convince him that if the swingarm falls out it's nothing to do with changing the pipe so they have agreed to let me change the pipe but no ECM work allowed. Can anybody comment?? I would really like to get some extra sound out of my bike and change to K&N as well, how will it run with no ECM changes?? How about the Jardine pipe any comments. Cheers | ||
| Bigkuri |
It runs just fine with no ECM changes - they allow for a lot. I have a K&N and full micron race system on, and it is just fine. I'll tweak it with ECMSpy one day soon, but there is no rush as no problems with standard ECM here. If you melt a valve, then fine - the dealer has a point, however as you say, if the swingarm falls off then they have to PROVE it was to do with your changes. Go for it. | ||
| Chris_socal |
I have similar dealer issues. My real problem with the bike is the delay when starting out. After some poking around in the dealers copy of the service manual, and reading the drummer site I figured out a redneck fix; disconnect the actuator cable from the airbox that runs down to the exhaust. The spring in the exhaust will fail to the open position. It will feel like a different bike just from that. I figured that when you put the drummer on you remove that anyway, so it couldn't hurt with the stock exhaust. You will notice immediate power response when you get on the throttle. I think the delay in that little servo was causing the delay in power. My next mod is going to be the K&N with the airbox conversion from American Sportbike. -Chris | ||
| 08uly |
--- "The spring in the exhaust will fail to the open position." I think it's the other way around. IEV cable under tension (pull on the cable) = Valve Open. Relaxed cable (cable disconnected) = Valve closed. Here is an image of the IEV to illustrate this.  --- 08Uly Uly Data Page  | ||
| Chris_socal |
Well, when I pull on the cable from the airbox the exhaust is muffled. When I release it, it is louder. I am not sure if it is different on pre 08s, but that is how my CA 08 is working. I also smell it running a bit rich when I first start up the bike, but that goes away once it is warmed up. That image is of the exhaust side? -Chris | ||
| 08uly |
Yeah, thats the Interactive Exhaust Valve (IEV) inside the muffler. I think it's the same on all XB12's. My actuator has been malfunctioning so I looked into this in detail in an attempt to get it working again. There is a procedure in the manual to cycle (reset) the actuator & valve as follows: 2008 XB Exhaust Actuator (reset) * DO NOT start the vehicle in this mode. Cycle the actuator to verify cable and valve operation: a. Hold the throttle wide open. b. Turn the engine cut-off switch to RUN. c. Turn the ignition/light switch ON. d. Watch the actuator cycle close/open/close. '08 XB service manual (99490-08Y) page 1-39 By following the close/open/close pattern you can verify which way is which. Also if you refer to the cable adjustment (page 1-39) it indicates to "fully open the exhaust valve in the muffler by pulling the cable"  --- 08Uly Uly Data Page (Message edited by 08uly on May 11, 2008) | ||
| Chris_socal |
Interesting. I will have to play with it to confirm. I will take some video of the process and post it on youtube. -Chris | ||
| Johnboy777 |
From my experience, with my '07 Uly, when the cable is disconnected at the muffler, the spring attached to the muffler valve (inside the muffler) keeps the muffler valve CLOSED. The exhaust gases then take the long way 'round.   | ||
| Chris_socal |
Nice drawings. OK, so could the issue be that the bike just likes to have the valve in one position or the other, and not a variation? Since I have disconnected the stupid thing the bike has been running like a champ. Maybe I will pull the cable and lock it into the "open position" and see what happens. If the valve is open, is the exhaust redirected completely, or is there pressure making its way back into that second stage? Could it be that there are some back pressure issues going on? -Chris  | ||
| Johnboy777 |
The front and back expansion chambers will maintain/have some pressure (with the valve in the open position)- but exhaust gases (much like water) will take the path of least resistance. | ||
| Conchop |
I adjusted my cable and it was a good thing. If you hear a jingling sound at idle, adjust your cable until the sound stops. At this point the valve is fully closed. Much better bottom end performance. | ||
| 08uly |
Here's another image showing the Open versus closed paths...  --- 08Uly Uly Data Page | ||
| Tipsymcstagger |
So how exactly does the Drummer compare to stock? I know the can is shortened. Is the valve physically removed? What about the rest of the "plumbing," so to speak? (I bought a used Drummer...not yet installed). Tipsy (Message edited by tipsymcstagger on May 13, 2008) |
