oh come on, you knew this was coming...

This is the Monster, the couple of crazy high numbers were when I was playing with the mixtures for a while...



Here's the 748, I only have data from when i bought the bike last year though (interesting how the mileage wasn't doing so hot in the last couple of tanks and I happened to find a bunch of flaking rockers just now):




and I do the same with my Accord, but what's really interesting is that I kept all the prices for every tank of gas I got on the car:

David, thats nuts

Well on my S2R1K in commuting 62miles round trip my reserve light always comes on between 130 and 135 miles which i believe translates to something in the upper 40's

  Damn David, that's awesome...

But what's the answer?

Quote from: hiero on July 05, 2008, 09:01:56 PM
oh come on, you knew this was coming...

Impressive data collection! 

I vote you present this during the next HC trip, during a break-out session. I have access to an LCD projector if needed. 

if i stay reasonable on the throttle, i get right around 50. in the real world it is a little less though    it seems happiest in 6th gear around 80, but mileage drops to low 40's

Quote from: oaf on July 06, 2008, 07:32:19 AM
if i stay reasonable on the throttle, i get right around 50. in the real world it is a little less though    it seems happiest in 6th gear around 80, but mileage drops to low 40's

What bike?

'97 M900

Generally around the 34-38 to/from work...city makes the mileage take a hit. 
Have hit 40-41, but that was mainly in the highway...75+ and hitting 100-120 in that period. 

i did that on my sentra as well...i found it was one of the best ways to tell when something wasn't right with the car and needed some attention.  it was strangely fun to compile all the receipts and store all that data...

i've been bad lately about waiting to get closer to empty before filing up...but it's been roughly around 45mpg with mixed driving.  that's with a rear sprocket that's +5 teeth.

Quote from: greenohawk69 on July 07, 2008, 10:59:42 AM
'97 M900
...Generally around the 34-38 to/from work...

You need to replace the emulsion tubes in your carburators. 
This kind of mileage on your bike is a big indicator they are not right.
Many were never good from the factory... and the rest were shot by 12,000 miles.
Any good jet kit will replace them... or just swap to the FCR carburators.
With FCR's I went from mid 30'sMPG to low-mid 50'sMPG
-AND picked up throttle response and highter RPM pulling out of the motor. 

If you put high-compression pistons in you'll pick up a few miles a galon more and be in the upper 50MPG range!

+1. Alan said his LYD (an M900) did around 50 MPG on the highway.

cdc

Quote from: CountPuggula on July 07, 2008, 12:05:20 PM
You need to replace the emulsion tubes in your carburators. 
This kind of mileage on your bike is a big indicator they are not right.
Many were never good from the factory... and the rest were shot by 12,000 miles.
Any good jet kit will replace them... or just swap to the FCR carburators.
With FCR's I went from mid 30'sMPG to low-mid 50'sMPG
-AND picked up throttle response and highter RPM pulling out of the motor. 

If you put high-compression pistons in you'll pick up a few miles a galon more and be in the upper 50MPG range!

interesting...i'm actually not sure if i have a jet kit in mine or not...i haven't had the balls to take off my carbs and remove anything; i figured i would be tempting fate and put something back together incorrectly.  i suppose the worst that happens is i would just have to take another crack at removing it and installing it properly.

i do have a spare set of carbs just sitting here, too...i believe they have a jet kit in them.  that reminds me i need to do some research to figure out what kit it is and if i should maybe try installing them on the SS...

07 S4Rs (114 rw - stock)
Average: 43
High: 47
Low: 38

Check out http://www.milemilemarker.com. There are instructions for linking up with Twitter so you can text message your mileage. They use nice flash graphs that include mileage and gas prices over time. It is the most convenient method of tracking mileage I have found.

dude...you're alive...

more than i can say about that link in your post, though... 

Quote from: McKraut on July 07, 2008, 12:37:31 PM
interesting...i'm actually not sure if i have a jet kit in mine or not...i haven't had the balls to take off my carbs and remove anything; i figured i would be tempting fate and put something back together incorrectly.  i suppose the worst that happens is i would just have to take another crack at removing it and installing it properly.

i do have a spare set of carbs just sitting here, too...i believe they have a jet kit in them.  that reminds me i need to do some research to figure out what kit it is and if i should maybe try installing them on the SS...

Do you have stock carbs or FCR's?
If just stockers, I would be happy with where you are.
(and if so someone HAS jetted/updated SOMETHING in there)

What kind of carbs are your "spares"?
If stockers I might know someone looking for some... (no, not me).
PM me.