Originally Posted by firefighterdez
Gents thanks for the comments.
The stage 1 on the Ness XC came as a standard factory upgrade. I suspect the altitude/oxygen differential has something to do with how it is running? Phoenix altitude is 1124 ft, where I am in Northern Canada it is 797 ft, and will be moving this summer to 786 ft. Nearest Victory Dealer/Dyno is at 2192 ft, so a dyno maping will be out of
k for my move early summer?
Don't know anything about Victory flashes, are they grouped to cover a range of enviromental conditions os is it like a dyno where they are individually mapped for the bike and conditions?
Welcome to the insanity! What # is your '11 XC? I believe the factory tuning relies on feedback from the O2 connectors and (I would think) that feedback loop would make altitude differences negligible but I could be wrong. I live @ 700ft elevation and have ridden up to Beech Mountain Ski Resort @ a height of 4,675 feet (during the summer) without any of the performance issues you are describing. You might want to simply run something like seafoam and/or Sta-Bil through your tank since you say it is new to you. If it's been sitting around for a year without being run, older/de-stabilized fuel may be your issue rather than the tune.
I also have a 2011 Ness XC but mine does not run rough AT ALL nor does it appear to pop or backfire (NEVER hear a BANG!). I saw that you stated that yours "came from the factory with Stage One" already installed/configured but that statement is contrary to what others have posted on these forums. Can I ask where you got that information from? The reason I ask is because I had thought (due to marketing literature at the time) that the Ness Bikes came from the factory with Stage One but dealers and other posters have contradicted that premise and I have not been able to find anyone within Victory (or my dealer) that was able to confirm that Stage One came on these bikes. Obviously, the existence or non-existence isn't a huge issue for me but I suspect that you could be correct & Stage One may well have came on these Ness XCs without the need for a dealer to add it on.
Here is why I think that mine (may have) Stage One...
1) My first dyno w/no mods/Stock(rubber weather strip still in place, etc) came in @ 83.59 Horse Power & 97.29 Torque (First graphic). However, other XC owners have reported as much as 5HP/7TQ lower on their (non-Ness) bikes. If mine did come with a Stage One, that may be the reason for the marginally higher dyno figures vs other non-Ness bikes. Up until this thread, I have simply been assuming that my bike may have simply had a better broken-in engine since everyone had previously argued that the Ness XC bikes did NOT come with Stage One from the factory (some 2 years ago).
2) This past fall, I had my dealer replace the stock Victory air filter with a Lloyd's high flow air filter with an awareness that I might need to get a different flash or obtain a tuner but you can see from the second dyno sheet below that the air/fuel ratio's came in well in-line without needing to make those changes. Perhaps the reason that occurred could be due to the fact that I may have already have had a Stage One flash and that could be why the tuner wasn't needed.
Any guidance/verification you could provide would be greatly appreciated! I suppose that it would be possible for a dealer to "read" the current flash on my bike but I am not certain their software has such 'reading' capabilities. I know that they can "re-write" a new flash but I would not want that. I would be interested in learning if reading the current flash is possible.
'11 Ness XC a month after purchase (100% stock)
Notes: Free Dyno with HP & Torque only (Smoothing 3)
'11 Ness XC with only Lloyd's Air Filter added (no tuner, no flash that I am aware of)
Notes: $25 Dyno providing HP & Air/Fuel ratio only (Smoothing 5)
PS - If you added your Stage One with your dealer then all the above may be irrelevant. However, the dealer I bought mine from DID get my bike from another dealer and one thing that may have happened on my bike could be that the original dealer DID add the Stage One option when they had it but that my selling dealer may not have been aware of it when they sold it to me. From a dealer point of view, I suspect that they had a cost (from the other dealer) that they needed to cover when they sold it to me. That original cost may have included a Stage One upfit without any documentation but since they were still able to make $'s on the 'flip', the details of any add on (like a dealer-delivered upgrade) may not have even have been documented.