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Wow... really good mileage!

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#1
I was told that on 2-stroke bikes that your gas mileage won't be so good, maybe 20 MPG or so (depends on driving condition, I know). Today, I went for a loooonggg ride with my '97 YZ 125 (150 miles total) and I got 85 miles off a full tank of gas! I was expecting much much less... Is this normal? Our ride had a lot of mixed riding... straight WOT paths, rocky terrain and hills, mud, etc.
 
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#2
I need to ask, how are you tracking your mileage? That seems WAY out there. I've gotten 85 miles on a tank on the KDX (much larger tank), and that was riding back roads practically idling in 6th gear.
 
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#4
well you shouldnt run til you are dry

there is stuff that sits in the bottom of your tank that all drains into the carb/engine and can muck it all up if its bad enough.

pretty much always have a little gas left. cuz you dont want that stuff in the engine
 

Vic

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#6
flyingfuzzball said:
well you shouldnt run til you are dry

there is stuff that sits in the bottom of your tank that all drains into the carb/engine and can muck it all up if its bad enough.

pretty much always have a little gas left. cuz you dont want that stuff in the engine
There is a filter on the fuel valve to prevent that. You should be more concerned about the lean condition that exists when you run out of fuel.
 

Papakeith

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#7
I don't know about you but all of my fuel comes from the bottom of the tank
 
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#10
85 miles on a yz125 tank is pretty amazing but if thats what you got thats what you got. Did you do the whole 150 miles in one day?
 

XRpredator

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#11
I guess, judging by the reactions of some members, you'd better call Guinness
 

High Lord Gomer

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#12
I think it should be possible. I've gotten better than 20 mpg with a 2 stroke 250 in enduros and hare scrambles, so I wouldn't be surprised if a 125 ridden on easier, faster trails by someone who weighs less than the bike could get 40 mpg or so.
 
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#13
High Lord Gomer said:
I think it should be possible. I've gotten better than 20 mpg with a 2 stroke 250 in enduros and hare scrambles, so I wouldn't be surprised if a 125 ridden on easier, faster trails by someone who weighs less than the bike could get 40 mpg or so.
Yeah I'm only 5'6" 125-130 lbs.

mideastrider said:
85 miles on a yz125 tank is pretty amazing but if thats what you got thats what you got. Did you do the whole 150 miles in one day?

We rode 150 miles total that day.
 

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#14
I suspect your dads mileage might be off. How long did it take (moving time only) you to ride this 150 miles? 4 hours, 6 hour, 8 hours?
 

XRpredator

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#15
I've done 70 in a day

and I needed to spend the next couple in bed