Maintenance & Technical > KX500 Original

Miles per gallon

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Danger4u2:
I did a real world test on gas mileage.  I went 39.7 miles, so 40 miles (64.37km).  I used 1.7 gallons of gas (6.43 litres).  That comes out to 23.5 miles per gallon (10.01km per litre).  Half of the ride was on the interstate,  I don't hold the bike at a steady pace, I run 65 to 74 mph (104.6km to 119.09km) .  Top speed was 81.2 at one point (130.6km).  Must have been on the close circuit part of the ride. :wink:  The other half was secondary roads.   About 40 miles per hour (64.37km per hour).  I don't remember what jet I have in the carb.  Stock chain and sprockets.  FMF Gnarly pipe and a Power Core 2 that should be repacked.  Reed spacer with stock reeds.  110 octane race fuel @ 40 to 1 gas/oil mix.  I usually mix 50/50 110 octane race fuel with 91 octane pump gas.
That should give me a 70/80 miles range per tank (112.6/128.7km).

OK, Dutchie, how do you like the conversions??  Correct Euro spelling for liters?? 
Man, the conversions made my brain hurt.

Picture shows the gas usage, from full, 40 miles (64.37km).

jfabmotorsports.com:
Wow. 1.7 gal in 40 miles. That means that my KX500AF is also a "daul sport bike"....You ride the first 40 miles and walk the next 40 back home! :-D

stewart:
i wonder if over drive 5th would incress milage

kaw rider:
gear the bike for 4th and then use 5th for street.

stewart:
i wondered if the lower motor rpm at a given speed   say 55 mph would riase the milage a lot on a 2 stroke

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