Join Date: Dec 2016
Location: Denton TX
Year/Make/Model: 10' Kawasaki Vulcan 900 Custom
Prenote: *This is intended for any newbie, with a stock bike, and looking for the cheapest and easiest upgrade. Like most people have stated elsewhere, every bike is different, and every bike responds differently to like mods.
I decided to ride around a couple weeks before leaving a follow up, to determine what I was seeing and feeling was perceptual vs. actual measureable change. I've gone through two tanks of gas, and despite "riding it like I stole it", my gas mileage has improved considerably. I'm fully aware every bike is different, but I believe my initial impression that the factory setup ran like ****, was precisely correct. For example, I would hit rev limiter for 2nd at 30, 3rd at 45, and 4th at 55-58. At 70-75 mph, the bike would shake, rattle and roll and leave me in the slow lane behind gravel trucks and semi's most of my commute to work. FYI, I live north of Dallas and the posted speed limit is 75 on the interstate. My gas mileage prior to install was 35-38 miles/gal.
With that in mind, I installed the DNA air filter and Cobra FI2000R. I installed at the same time, and plan on adding pipes later, however not sure if pipes are entirely justified at this point. I have fuel controller pot settings at 1.5, 1, 1. It starts and idles quieter and quickly transitions to slow idle in 5-6 secs vs. 30-45 secs before install. I have not noticed any discernible change in sound of rumble or acoustics of exhaust note. It runs "smoother" with less vibration at pegs and grips, regardless of speed.
I'm sure most of the improvements are result of the fuel controller, but I'm no longer riding in the slow lane. if shifting near rev limiter I can now shift at 40 for 2nd, 55 for 3rd, 65-70 mph for 4th. I can fully understand and realize why many others have stated they are no longer searching for 6th gear. It now pulls in any gear, regardless of where I am in RPM. It feels like im riding a "bigger" bike, or should I say, a well tuned motorcycle. I've not yet checked max speed, but I can attest that at 90, it runs just as smoothly as 60. The down side is, I find myself having to check my speed more frequently as I don't realize how fast I am traveling. Prior, I could "feel" my speed per vibration and engine sound; most of which, has disappeared entirely. I find myself wishing for sound, as it may have been a false sense of security in terms of visibility. My mileage is now running between 48-50 miles/gal, as others have reported. I'm truly over joyed with the outcome. It's now become more obvious how uncomfortable the stock seat is and I plan on fixing that problem soon, as well. Hope this helps anyone interested.
Last edited by BigTexMike900CA; 01-28-2017 at 11:59 AM.