MPG Reality Check or Wow, Nice surprise!
This is a segway of Bret H's MPG average after ear shave post..... I wanted to include tire info....
This is written 800 miles after doing the shave....
I really like my '06 VN750....like the way it rides, handles...even like the looks, after all, looks is what attracts us to most things, but after seeing other bikes without ears (airbox) I knew I had to make the change. I approached the Ear Shave for purely esthetic reasons...to remove the ears, but now that it's done, esthetics became an insignificant reason to tackle this job. I cannot believe the difference it has made in the performance of the bike. I barely need to choke it when starting....it just starts and idles like it was fuel injected. Acceleration, response, sound....all different (in a better way). If you goose it at 70 MPH, you better be holding on, cause she jumps outta her skin responding to the slightest touch. Bottom line: If considering an Ear Shave on the VN750, just do it. You will be glad you did. (Procedure in the link below)
Now the MPG part....
Out of the box, the VN750, after break-in period, will get approx. 48-50 MPG if you ride in moderation. Reasons for this (IMHO) is two-fold....1) factory (very) lean mixture settings and 2) conjecture has it Kawasaki geared the speedometer gearbox so it would appear you're going faster/further than actual speed/distance for safety reasons. We tend to blame the tire size but in reality, Kawasaki could have easily designed the gearbox to be accurate. We compensate for the inaccuracy of the gearbox by installing larger tires. When I installed the 110/19, my MPG dropped approx. 10% or 44-45 MPG. While disappointing, this is closer to reality. I also was closer to actual speed indicated.
Now the ear shave news...Wow, Nice surprise....
I really thought installing larger jets and adding shims would increase fuel consumption, but as it turns out, my MPG did not change after the ear shave....I still get about 44 MPG!
Stock = 48-50 MPG
Larger tires = 44-45 MPG
Ear Shave & larger tires = 44-45 MPG
Last edited by VoIPDoc; 06-03-2011 at 09:05 AM.