| Author | Message | ||
     Fresnobuell |
What do you guys think? Think I can finally convince my service manager to replace the front O2 sensor?   | ||
| Ponti1 |
I'll give you a "maybe". Do I think they should be convinced? Yes. Am I confident without knowing your dealer? Not so much. I've dealt with some amazing lack of competence in the past, so my perspective is admittedly tainted. | ||
| Xbswede |
Not sure if this will help or not. What about running the self cleaning procedure on the spark plugs? Maybe too much unburnt fuel is entering the cylinder. | ||
| Xb9 |
How does it run? Any drivability issues? What were the values at let's say 1500 miles? | ||
| Fresnobuell |
Let start by saying that I didn't check the AFV until AFTER the last flash. I really wish I did. I started checking the AFV after the last flash as i noticed WORSE low RPM engine performance. I know I am in the minority as far as this goes. So POST flash... The lowest value typically registered for the front cylinder has been 83.5. At this value, I get a stumble/hesitation at lower RPMs in 1st and 2nd. I guess the same would happen in the rest of the gears, but you don't find yourself in the low rev range there. After some hard track riding, the value seems to increase to a "normal" value in the 90's. When it is there, the bike is a world beater (at least to me!) No stumbles, easy launches with the front tire skimming over the asphalt. When I noticed the 79.0 value yesterday, it was after a ride where the low rev stumbling was at an all time worst. Basically, the front AFV seems to change almost randomly. I can't figure out cause and effect (but that could be my mechanical limitations.) The only thing that SEEMS to happen is the lower the value, the more stumbling/hesitation. Lastly, the rear AFV seems rock solid at 94.5. I can't remember the last time its moved. Thanks for the input. I have emailed my service manager requesting the o2 sensor to be changed. We will see what happens on Tuesday. | ||
| Badlionsfan |
I started checking the AFV after the last flash as i noticed WORSE low RPM engine performance. I know I am in the minority as far as this goes. More than minority, you have the ONLY 1125r that defied all laws of physics and engineering. I thought my bike ran good too, but it got 100% better, esp in the lower rpms after the re-flash. If yours got worse, there's definitely something else going on. try disconnecting the O2 sensors and see how she runs, as I know several folks here who run their bikes like that any way. | ||
| Fresnobuell |
More than minority, you have the ONLY 1125r that defied all laws of physics and engineering. I seem to remember at least one other person who reported the same. And, maybe coincidentally, the first front AFV value after the flash was mid-80s. See why i wish I have some clue what my AFVs were pre-flash? I am under the impression that if I disconnect the o2 sensors, it will lock in the current AFVs. What can I prove/disprove by disconnecting the O2 sensors? |
