Any Motorcycle MPG sites ?

[razmataz]

Does anyone have another source for motorcycle MPG ?

This is the most complete source and a lot of it is based on owners.

http://www.totalmotorcycle.com/Motor...uide/index.htm

DISCLAIMER:
Owned reported estimates are based on data from riders rather than official sources. Since the source data cannot be verified Total Motorcycle does not guarantee the accuracy of this data.

General:
Unlike automobiles, motorcycle Fuel Efficiency is extremely difficult to calculate and it is important to remember these numbers are general guidelines as what to expect under the exact same conditions. Each rider will get different numbers for their own motorcycle due to accessories, riding style, type and formulation of gas which varies from each city.

Personal motorcycle ratings are not official or my not be indicitive of every model for that year. As these figures are not required by law in North America to display we wish to thank the many motorcycle manufacturers for sharing these numbers with us and with you.

[Hockey4mnhs]

most people just guess on this site but those #s might give you a good chacnce at a close guess of what its made to get

[Sludgy]

I've looked for a comprehensive bike FE table, but it seems like there is little out there. The company sites that have some mpg info are: Buell, Harley Davidson, and Suzuki.

It surprises me that there aren't more fuel injected cycles out there. FI increases both power and FE, both important reasons why we buy cycles.
Amazingly, America leads the pack in EFI. HD has EFI on most, if not all, of their 2007 bikes. (Buell doesn't count.) Hell, you can even buy a garden tractor with an American closed loop Kohler EFI engine.

Why aren't the Japanese bikes using EFI, particularly on their small to midsize bikes?

[korax123]

Well buy a smaller bike get better FE hehe. I'm looking @ a YZF600R as my next bike and they clock in anywhere from 48mpg-63mpg but my lil 250 kicks but right now at allways over 70mpg. My commute is 55mph to and from work though so it helps with almost no stop and go.

So fuel injection really doesn't help much. The YZF600R is carb'd and it gets better mileage then your Honda 600cc so FI isn't always better.

[GasSavers_Ryland]

Honda makes a number of fuel injected motorcycles, altho they don't sell many of them in the US, my personal favorit is the CB400Fi a 4 cylender 400cc and it's a vtec engine, so it goes from being a 2 valve per cylender to 4 valve per cylender engine, they sold a few of them carburated, non vtec, in the US, but they are hard to find, altho they are amazing motorcycles.

[red91sit]

Originally Posted by Ryland

Honda makes a number of fuel injected motorcycles, altho they don't sell many of them in the US, my personal favorit is the CB400Fi a 4 cylender 400cc and it's a vtec engine, so it goes from being a 2 valve per cylender to 4 valve per cylender engine, they sold a few of them carburated, non vtec, in the US, but they are hard to find, altho they are amazing motorcycles.

I have a Carbeurated, non-vtec CB400F , but it's from 1976. I would also love it's never modernized conterpart.

[BisbeeWarrior]

I would imagine the reason Japanese manufacturers don't include EFI on their smaller motorcycles has to do with price. The smaller bikes are expected to sell for much less than larger ones. HD doesn't really have this issue since their smallest bike is 883cc and folks who purchase a Harley generally already expect to pay a higher price than for a Japanese model. Also the HD EFI is a simple throttle body system if I remember correctly, most of the Japanese models using EFI are multiport.

EFI on motorcycles is still relatively new, there are still driveability issues with EFI that you don't have with carburetion. I expect we'll see more EFI in the near future.

As for motorcycle mileage, it varies greatly with rider weight and riding style. My Mom is routinely seeing over 100mpg on her 125 Vino scooter, I would expect to see a bit less if I were riding it if only because of the weight difference. Remember, the proportion of rider to machine weight on a motorcycle is much different on a 500lb machine than in a 4000lb machine.

That being said, I am seeing mileage in the low 50's on my Warrior while many people on the Warrior forum can get no better than mid-30's. I think I'm doing okay for a 1700cc machine.

[bones33]

Hondas plans are to FI all new bikes by like 2010 or so, even the 50cc scooters in 3rd world countries. The challenge is to make a cheap, effective FI system.

That being said, modern M/C carbies are pretty damn efficeint. Dial them in and they nearly equal current FI systems for both hp and fuel efficiency. Of course they'll not account for seasonal changes like a closed loop FI system will and driveability is still better with FI.

[GasSavers_Ryland]

Originally Posted by red91sit

I have a Carbeurated, non-vtec CB400F , but it's from 1976. I would also love it's never modernized conterpart.

the newer one is a water cooled inline 4, insted of air cooled, alowing the engine to be much more compact, slightly wider then a twin cylender air cooled engine.

[razmataz]

Actaully bikes are WAY ahead of cars in engine technology, it just isn't geared toward FE, but performance.

Bikes get good enough FE that it isn't even measured (thus the posting of this thread) and emmisions controls were not even required on motorcycles until recently. I'm not even sure if they are even required now in most states. Definetly not tested after initial purchase.

Sportbikes typical use the exhaust system to extract more power. It is tuned and variable (with moving parts) to create different back pressures at different RPMs. No cars are doing that! There are a number of things on bikes that come directly from racing, testing and design that show the detail and thought that go into them. Some of them even make it onto production cars.

Performance sells (Japanese\European) bikes!
Bikes excel in performance with complete model changes occuring even faster than the Japanese car updates.

BTW this is my first FI bike and I love it. It runs great, requires less maintenance and ALWAYS starts right up.