XR650R Fuel consumption - WOW

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Grey Hound
Joined
May 23, 2011
Messages
6,768
Reaction score
35
Location
Riebeek west
Bike
Triumph 900 Scrambler
Im constantly trying to find a way to get relatively acceptable fuel economy out of the XR in the hope to make it a good dual purpose bike.  I have just changed the sprockets from 15/48 to 15/42 to bring cruising rpm down and I was shocked to see it still give me a horrible 13.1km/l at 80/110kph (8.13l - 107km)

This means my 25l tank would give me a range of roughly 300km. Guys in the US are getting around 450km on the same amount of fuel.

Bike runs n nice and strong and has more than enough power. Recently serviced and is correctly jetted.


Could the tall gearing be causing the extra fuel consumption? Placing the engine under load?
 
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