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post #1 of 11 (permalink) Old 09-10-2009, 06:23 PM Thread Starter
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Mpg

Hello, I'm from Panama, Central America, and just bought a ' 99 Vulcan 750 that is a beauty. I'm new in the motorcycling world and this site is very helpfull for me. Last friday a friend and I made a test drive to the country side and as we were going down the freeway I realize my gas was going down fast .....that I even run out of it. When I left my house, I have like half a tank so I don't worry for it until I realize that my tank was empty. Does anyone tell me how many MPG those this bikes made?? which is the better or optimal speed for long travel??
Thank you for the good advise.
A fellow rider from south of the border.

Last edited by satcer; 09-10-2009 at 06:27 PM.
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post #2 of 11 (permalink) Old 09-10-2009, 06:45 PM
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Any speed where the motor is turning over 5000 rpms the gas consumption increases dramaticly. The tank is small so range from fill up to fill up is around 120 miles (without using reserve)...on average.

If kept below 5000 rpms, you can get mpg's around 50+, but the way I ride I never got much better than 42 mpg.

I have seen some high , and hard to believe, mpg figures stated here, and not doubting anyones word, I will just say you need to find out yourself how much you average on your bike , and not take other figures to heart.

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post #3 of 11 (permalink) Old 09-10-2009, 09:11 PM
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I run 87 octane and get around 50 mpg. But at "half a tank," you were probably well under half a tank in real life. The gauges stay high for awhile, and then drop precipitously. As Knifemaker notes, a fill up at about 120 miles is the safest bet.

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post #4 of 11 (permalink) Old 09-10-2009, 10:17 PM
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I routinely get between 46 and 52 mpg. Like KM stated, if I let the rpm's stay higher than about 5000, I suck up the gas much quicker. And as Cindy stated, you can't trust the gas gauge too much. That's why there's a reserve setting on the fuel selector (petcock), to give you some warning that it's time to get gas ASAP.

The best gas mileage I've ever got with my 750 was when I was riding two up, with my wife on the back, straight highway riding going about 55 mph the whole way. Got 55 mpg and was way happy!

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post #5 of 11 (permalink) Old 09-10-2009, 10:55 PM
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I found that from a full tank it goes as follows: Full mark... next line it is not half but you have used the first two gallons. from there to the red area you have the next 1/2 gallon. then you are getting ready to play with reserve.

Oh ya.... I also get around the 50 mpg mark..

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post #6 of 11 (permalink) Old 09-10-2009, 11:04 PM
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Usually around 50 MPG here too.
And I gotta repeat what others have said, in that the gauge reads slow to get to the half tank mark, then quick to get from there to empty. Always remember that!!!
If I knew I was going to be riding for awhile, I'd fill up if I got to the half mark and still had a good bit of riding to do. Never ran out.... yet!


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post #7 of 11 (permalink) Old 09-11-2009, 01:14 AM
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At present, my records are as follows (Note, my speedometer reads 10% high...Speeds referenced are corrected for actual speed of travel, so are 9% below what speedometer actually indicated):

Low: 40.87 MPG (75 MPH highway trip with strong headwind)
Average as of Today: 53.84 MPG
High: 61.11 MPG (4 consecutive days of commuting with no PLP, interstate, or short trips)

The commuting cycle used on this bike for these numbers was 17 miles 1 way, predominately 45 and 55 limits, ridden at those actual corrected-in-my-head speeds on mostly back roads with traffic control devices at about 2 out of 3 mile markers. The mix for the average is probably about 3:1 commuting vs. road trips.

On my bike, I'd start getting nervous around 150-160 miles of low-speed riding or 100-110 miles of high-speed riding. The one time I've gone to reserve and it wasn't by choice, the tank had been predominantly commuting and the trip odo showed about 168 when I pulled up to a stop sign where it died every time I let out the clutch to go, then I switched to reserve, rode to a station and filled up at 173.7 miles, getting 55 MPG flat on that tank.

Regarding speeds, my MPG seems to go down more quickly as speeds increase beyond about 55-60 (true).

As others have said, though, keep your own records and do your own math. There is a lot of variability between bikes, riders, and roads.

Last edited by IMBoring25; 09-11-2009 at 01:27 AM.
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post #8 of 11 (permalink) Old 09-11-2009, 08:49 AM
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$5 at $2.23 a gallon got me about 120 - 130 miles - in town riding
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post #9 of 11 (permalink) Old 09-11-2009, 08:59 AM
 
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HOLY COW imboring25 what was that LOL I understood 2 words in that j/k Im glad someone is on top of it lol ,My method is

1.Bike turn off
2.Switch to reserve
3.Go to station
4.Fill up
p.s just trying to be funny
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post #10 of 11 (permalink) Old 09-11-2009, 10:09 AM
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ive ran my float bowls dry by accident and it was only 112miles. it was weird, so i ususally just fill up when it reaches 100mi or in the midway on the guage mark.
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