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  #1  
Old 25 May 2002
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XR650L fuel mileage

Just bought a 2000 XR650L, totally stock. After a month I realize that I only do about 80 miles of a full gaz tank.

Is it normal?

I have red that the XR650L was supposed to do about 50 miles/gallon, times 2,8G thats about 140 miles. But I only do half of that. I ride very normally, only done street ride yet and use a full tank with the reserve until almost the last drop.

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  #2  
Old 29 May 2002
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Do you mean 80 miles until you hit reserve or 80 miles until you're absolutely dry?

80 miles until reserve on the stock tank is exactly what nearly everyone reports, mine used to hit reserve at 80 miles like clockwork. You hit reserve after using 2.2 gallons, supposedly, so that's about 36 MPG. Not bad, but not great either.

It is possible to get 50 MPG with this bike, but not under normal riding conditions. If you put road tires on, a small windscreen, drop a few teeth on the rear sprocket and ride at 55 miles per hour without ever really getting on the gas hard, I have heard of people who achieve that.

With a bike that lacks aerodynamic flow like this, the more you keep your highway speed down the more successful you'll be at keeping it efficient. Trail riding also will not give you great mileage, since it usually requires short bursts of lots of throttle, which'll eat up your fuel as well.

What kind of riding do you expect to be doing?
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  #3  
Old 30 May 2002
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I do about 77 miles with the complete tank including the reserve. I mostly use it on surban streets, but also occasionnaly do trail and forest rides. I not too hard on the trottle nor speed, on the highway Im about at 60mph.

Since I mostly use it on the streets gaz comsumpsion is not too painful.

When I will do a forest ride I'll have too carry another 2 gallons, I'm "designing" myself a aluminium tail rack.

I had just finished my home made SkidPlate for about 20$.
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  #4  
Old 30 May 2002
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Here's an easy test you can perform to see where your problem lies.

Next time you run the tank dry, measure exactly how much gas it takes to fill it back up. If the amount is close to 2.8 gallons, then you're getting very poor gas mileage. Several things can cause poor gas mileage including lower gearing, dragging brakes, oversized jets, bad carb floats.

If the amount of gas to fill the tank is much less than 2.8 gallons, then you might look at things like an obstructed gas tank filler or a faulty petcock.

Story
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  #5  
Old 31 May 2002
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You can get a 5.2 or a 4.7 gallon tank for this bike rather than building a tail rack to hold extra fuel! That's a really messy way to deal with limited fuel capacity.

try
http://www.acerbis.com
or
http://www.imsproducts.com/

Pictures of the fuel tank on my bike and info at:
http://www.geocities.com/wwbagwell

Best of luck,
Wright
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  #6  
Old 18 Jun 2002
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I'm amazed by the low mpg! even with weeny US gallons, I regularly got 50-55mpUSg on a Dominator and thought the L had the same engine, carb etc. am I mistaken? I'm planning to make a long-ranger. my XR400 does better than 36mpUSg
Richard
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  #7  
Old 25 Jun 2002
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My dommie does about 15.5km on a litre of petrol, to me this seems quite a bit considering similar 1 cil I've owned before always use to run around the 20km/l and even a 850cc TDM does about 17km/l. So Im wondering why? Its a 97 model with 12000km's
Any Ideas?

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  #8  
Old 25 Jun 2002
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I'm not sure why this bike doesn't get better mileage - it's certianly not related to high horsepower output!

In comparison to your XR400, it's awfully heavy, so starting all that extra weight from a stop would explain why the 400 gets better mileage, but in comparison to say, other 650s or my R1150 GS - I have no explanation except that it has poor aerodynamics and that the bike hasn't changed in ten years, save a few negligible things here and there. Maybe it's just a dated design and has dated performance. Perhaps Honda's next revision on the bike will cure these problems.

Anyone know what a stock 650R gets in comparison?

Wright

[This message has been edited by wbagwell (edited 24 June 2002).]
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  #9  
Old 16 Nov 2002
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May I brag a bit about the little brother of the XR650L? My XR250L on a fully loaded 1600 mile trip once got 85 miles to the gallon, tank after puny tank. I think I found all my gas money for that trip under the couch cushions, I was thrilled especially since I was doing 75 to 85 mph, wound out big time on much of the trip. I do however realize big mileage bennefits by spending significant time in a speed skier's tuck peering over the bars. I can add 15+ mph to the speed of the thing fully loaded or going uphill or into a headwind by using the "crunch and tuck" technique. I know that was on my side for that fun ride. Man you could melt a frying pan on that engine case! As the bike has aged I have noticed a little less mind blowing mileage I think, but it's still way up there with the shrimpiest of motors but plenty powerful! May I suggest the bullet-proof quarter litre! 30,000 miles with tons of abuse and never once even thought of letting me down mechanically, but high altitudes, fully loaded can occasionally force one into the Slow Lane, oh well, you can catch up on the downside! Can't win em all!
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