| Author | Message | ||
     7873jake |
In the past week of riding a newly acquired 07 XB12X with 7,000 miles on the clock, I've done some digging and discovering and repairing and PM work. I'm down to only one nagging decision left until the next gremlin strikes: the exhaust servo gremlin under the air cleaner cover. I've dug and dug and searched and read posts after posts re: issues with this known demon but don't come away with a clear indication of the risks or dangers or potential issues of ignoring this code vs. fixing the issue vs. other options. I don't really want to get into the market just yet for a new/race ECM or aftermarket pipe or tuning. I have old 2-wheeled iron to tinker with/tune if I want to do that sorta thing. I mainly just want to be able to ride all over the state this winter without making it rocket science or a crap shoot at this point. Ask me if I still want to subscribe to this mindset in 6 months and you might get a different answer but for now... I've noticed that my bike seems to idle high and a tad rough after the servo was "manually adjusted" by hands smaller than mine recently (another story for another day). I do not have a CEL on presently but my ECM is still showing a code for the exhaust circuit when I read it. Occasionally, I get a slight hesitation (one small blip) at about 70mph once every 7-10 mins on open highway. No other ill mannered stutters or idling anywhere in the throttle/RPM range aside from the high idle (1200-1500 rpm when the engine is warm). Do I go in search of a replacement servo unit for under the air cleaner cover and hold my breath until it dies and then lather, rinse, repeat until they don't exist any longer? Is there a cheat plug to fool the ECM into believing that all is well with the servo, essentially bypassing the feature in the exhaust can? Is this foolhardy and dangerous? Knowing the risk allows me to make an informed decision, something I can't effectively do at this point. Ultimately, I don't want to have to bandage this issue repeatedly. I pay taxes annually to satisfy the desire to do something each year that has little reward and lots of pain. I don't need a servo to give me that same pleasure also. Surely someone out there has a nice middle ground solution to this problem or at least a good assessment of the risk/reward for handling this. I'll store the busted servo next to my old under-seat fan. They can share old stories while hanging on the wall together. | ||
| Froggy |
Yes, American Sport Bike used to sell a resistor that tricked the ECM. You can run with the CEL light, it shouldn't affect anything. The only issue with that is, if the light was to come on for any other reason, you wouldn't know. | ||
| Etennuly |
A friend of mine wanted a little more noise than the stock pipe, so he wired his open. The only detriments other than the light being on is a very small loss of torque/power above idle and in the mid range, basically where ever the thing is supposed to be closed. The valve system does work. But running without it won't hurt the engine. Mine will be in place and operational until it dies, then it is likely I will wire it open or modify the muffler, and do what ever it takes to shut the indicator light off. | ||
| Rwcfrank |
The new servo has metal gears and actually lasts.. | ||
| 7873jake |
These are all things I was looking for. Thanks gentlemen. At some point, I look forward to actually answering questions rather than posing them. For now though, I am in the debt of the collective. Thanks again. | ||
| Tootal |
You can take yours apart and see if it's broken inside. The original ones had plastic gears that break. If you wire it open then you could remove the broken gear so it would actuate but not do anything. This would allow you to clear the fault. The other option is to get a new one which has the metal gears, as mentioned above, and be done with it. |
