Gas Mileage

[paperslammer]

What gas mileage do you guys get? I went on a 100 mile ride and I probably used 3 gallons of gas....seems like a lot for the bike. Is this normal? Oh here's a picture of the bike on HW 1 !!!! It's been photoshopped, it's really not that shiny..

[brewsky]

Haven't checked mine precisely yet, but my gas mileage really sucked till I realized I had meticulously cleaned and set the float to the WRONG level!

I believe advertised MPG was 100.

[jensen]

Hi,

Last Sunday I covered 500+ km (300+ miles). the weather was beautiful, not to hot, and not to cold. It was a perfect Sunday. I rode over 100 km high way (65 miles), with an average speed of 120 - 130 km/hr (75 to 80 miles/hr). I also covered 400 km small roads, back lanes, and crossing villages, in the speed range from 20 to 50 miles/hr, including lot's of shifting from first to second to third and back. It seems that the bike runs great, and that the issue with the gap between the first and second gear is less noticeable. Within a few weeks I will hopefully confirm what I feel as the improved torque curves due to setting the needles.

Fuel economics on the other hand is not so great, and not what I expected. It does 18 km a liter, and that is very low (if I'm not wrong that is 11.2 miles per liter, and 50 miles per gallon).

My CB72 does 25 km a liter (70.6 miles per gallon), and according to the gas analyzer measurements on the dyno of both bikes, the mixture is about the same.

Jensen

The first part is the mileage for the CB450 BB'65, the mileage for the CB72 is much higher.

My dream (C77'64), as a comparison, does 33.5 km a liter (that's 79 miles per gallon, calculated over 500 miles), better then the CB72. But....., it holds a single CB77 carburetor, flowed head (mainly intake), and re-jetted carburetor, and early stainless mufflers. And the C77 is ridden in a different way then a CB72 (lower revs, more as a tourer).

Jensen

[rustywrench]

I geared my scramber with longer legs and get about 50 mpg at moderate speeds. RW