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Old 01-24-2012, 12:23 AM   #12311
MCmad OP
Joined: Jun 2008
Oddometer: 7,842
Originally Posted by Ladder106 View Post
Can you guys give me an idea of the fuel consumption of a well tuned SR41 (750) DR?

I put the carbs from the SR42 on my bike (the ones with the removable pilot jets). The bike runs great after replacing all the O-rings and slide guides but is using more fuel. I used to go 400 to 420 k before using "reserve"....Now it's down to 370 k.

Milage is 38 miles/gallon .... or .... about 16 kilometers per liter.

With the old standard SR41 carbs I was averaging 42 to 45 miles per gallon ... or ... 18 to 19 k/l.

In comparing the carb specs in the service manual, I noted the SR42 carbs have a richer needle jet (O-5 rather than O-4) but use the same needles.

To compensate I moved the needle clip up one notch (to lower the needle) today. Only rode around the neighborhood since I was running out of time. The bike ran fine without any hint of lean conditions. I'll give it a better ride tomorrow. Unmodded airbox, clean standard filter, standard exhaust.

I'd just like to know what figures are "normal" or common for the Big
Originally Posted by Resi View Post

my smurfie takes between 6.5l/100km up to 10l/km, acc. 15.4 km/l respectively 10 km/l.

Final ratio 15/50, actually Metzeler Unicross tires, nearly offroad use only.

Oranje one is at approx. 8 l/100km (12.5km/l).

Final ratio 14/48, onroad use only.

Green SR43 is at 6.5l/100km, onroad cruisin' ;)

You have to break an egg to make an omelette.


For those of us less educated this makes all those numbers easier

Seems most reasonable sized road/adv bikes get between 18- 19km per litre (in my experience on the road somewhere near the speed limit) sometimes I dip into the 17s and occasionally see 20, whether that be a 750/800single or KTM, Aprilia or Harley twins, Thats about 50- 55mpg if your of British descendants

Back in the 800 days

MCmad screwed with this post 01-24-2012 at 12:48 AM
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