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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by George Guille, It's going to be a long 300km... Bolivian Amazon

I haven't been everywhere...
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Photo by George Guille
It's going to be a long 300km...
Bolivian Amazon



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  #1  
Old 5 Feb 2011
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Mpg
how many MPG is everyone getting from there xt600 ? i have a 2003 model and get about 55 miles . is it possible to improve on the economy of these bikes . mine is all stock parts . i intend to fit a K&N air filter will this make any difference ? thanks all xt fans
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Old 5 Feb 2011
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hi there my 1985 43f do,s about 60 mpg around town but i recon more on a run , a friend of mine has a jap own market monoshock srx 600 1989 very simuler to a 600 e and i got 75 mpg on a steady long run . zigzag
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Old 5 Feb 2011
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My 2003 was running rich, I went 2 down on the primary mainjet. But that didnt do much to normal cruice speed, so perhaps you're on your way with the KN

I would say that 55mpg on a xt600 is on, or around, the limits of whats possible, but I may be wrong.
Last edited by Jens Eskildsen; 6 Feb 2011 at 09:36.
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Old 5 Feb 2011
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Originally Posted by Jens Eskildsen View Post
I would say that 55mpg on a xt600 is on, or around the limits of whats possible, but I may be wrong.
Depends: imperial gallons or US gallons? 55 miles per US gallon is reasonably good; 55 miles per imperial gallon is not. Imperial gallons are 1.2 times as big AFAIR, therefore mileage is 1.2 times as high.

Also: at what speed? Maximum should be somewhere around 40-45 mph. My KLR gets 65 (US) mpg at 45 mph, 50 mpg @ 60 mph, 35 mpg @ 60 mph into a strong Patagonian wind.

And watch out for that K&N filter if you're around lots of silt: the one I looked at was passing a lot of fines, which maybe an undesireable side effect of opening up the airflow.

Mark
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Old 5 Feb 2011
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On a single cylinder machine it is important to have a large as possible airbox and pre carburettor filtered air volume to reduce peak loading on the filter. so just be aware of this when changing things.
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Old 6 Feb 2011
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For me 60 Miles Per Gallon is quite easily possible if you ride constantly at no more than 60mph and no hard acceleration.

Constant hard riding will eventually destroy an XT6 (it's a single cylinder engine you know) and will return between 30 - 35 mpg.
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Old 9 Feb 2011
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Originally Posted by kentfallen View Post
For me 60 Miles Per Gallon is quite easily possible if you ride constantly at no more than 60mph and no hard acceleration.

Constant hard riding will eventually destroy an XT6 (it's a single cylinder engine you know) and will return between 30 - 35 mpg.
in my experience the xt600 lump will take hard riding for many years with a minimal maintenance schedule. The honda c50 70/ 90 are a series of fourstroke single cyl motors ( you know )that can be thrashed mercilessly decade in decade out with zero maintenance
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Old 9 Feb 2011
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had the xt600 8mths and my average mpg 60/65, that is keeping to all the legal road speeds.
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Old 10 Feb 2011
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Once did a ride from Doncaster to London and got 87 mpg on a steady cruise down the M1 on a 88 XT600
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Old 13 Feb 2011
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Wow 87mpg! IMPRESSIVE.

Can anyone beat that? My best ever was about 70 riding slowly in top gear through scenic Wales.

It would seem from all the posts here that 60mpg is easily possible.
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Old 14 Feb 2011
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Originally Posted by kentfallen View Post
Wow 87mpg! IMPRESSIVE.

Can anyone beat that? My best ever was about 70 riding slowly in top gear through scenic Wales.

It would seem from all the posts here that 60mpg is easily possible.
My XT600E was regularly at 55-60 MPG.

I once got 85 MPG out of carbed BMW F650. You need to be in Norway on a Summer Sunday morning (empty, smooth roads) with a big tank so you only stop for comfort breaks, a tail wind, a bike that is thoroughly serviced (tyre pressures ) and run in and have the will (enforced by meeting a guy the night before who'd got a massive fine) to stick to 90 KPH.

My biggest issue with economy is that although the armour in my right elbow looks like foam, it seems to act like a lead weight was far as the throttle position is concerned.

Andy
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Old 14 Feb 2011
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I got 300 miles from less than 18 litres on a TT600RE which has the same engine as the XT. Southampton to Hull in one very cold night 60-65 mph all the way, think that works out at about 75 MPG.
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Old 14 Feb 2011
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I get an average of 56-58mpg on my 2003 XT600e, standard except for a K&N filter, though i'm sure I got about 85mpg once but my maths may have been wrong! This is all touring on A & B roads or their equivalent abroad.
Even on trails and sand in Morocco it never went much below about 55mpg or roughly 275 miles to reserve on an Acerbis 23 litre tank
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