Ok what are you getting for mileage with your commando.

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Niagara850 said:
I use the the Fill Up I don't fill to the top as it leaks out the cap if its too full (despite replacing seal)
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Niagara,
I use a second new seal by just laying it on the top of the filler neck and just sandwich it between the filler cap. It stops my leaks. Just keep an eye on the wind when you have to open the cap at the gas station. ;) I tried to hold it with silicone sealer to the neck but it didn't last so I just leave it loose.
Cheers.
Tom
 
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SteveA said:
Normally around 25 minutes from 2.5 litres! :rolleyes:
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I like the way your thinking, But That's a different kettle of fish. o_O. Give us the racetrack lap distance, average speed per lap and how many trips around and we should be able to do a calculation. :D
T.
 
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Last tank was 53 mpg US gallons. 850 Mk2 premiers. Mix of driving situations but such results are typical.
 
CanukNortonNut said:
I like the way your thinking, But That's a different kettle of fish. o_O. Give us the racetrack lap distance, average speed per lap and how many trips around and we should be able to do a calculation. :D
T.
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Calculate away, important issue for me is to know before the trip, not after :D
 
You've got me curious now T. As soon as my new speedo gets in/on I'm going to track this and drag this thread up to post some accurate info rather than guesstimation…..It does far better than I stated then I'd rather fib low than high.
 
I always ask for my receipt and mark down my odometer then take an average after 4 fuel stops. Like others stated earlier depending who your riding with and how aggressive they ride together changes the dynamics of your fuel consumption, big time. I was really hoping Fullauto would pipe in as he was using a exhaust gas analysis system hooked up to his exhaust IIRC.
Cheers
Tom.
 
CanukNortonNut said:
Ashley,
I don't give a crap if on how many K or how long you own your bike on you first re-bore. Just tell us what carb or carbs you use at those speeds with whatever mix of gas you use. No bragging rights here. Just what you get when you are traveling for distance. If someone uses the cNw carbs or a fuel injection system or those Chinese pkw's set up for a Commando. That would be good to know. Or twin mikuni's single or twin mk2's. This is where I want the discussion to explore. Not your semi retired state.
Cheers,
Tom
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Under 50mpg running at 70mph and just over 4000rpm. Combat with 21T gearbox sprocket. Before correcting the cam timing which was 15 degrees retarded it was getting up to 60mpg.
 
Usually approx 70 mpg (Thats real imperial gallons)
On holiday, cruising along enjoying the scenery etc it can be anywhere from 80 to 90 mpg. Going to the Austrian International rally in 2018 I averaged 82mpg (checked against my friend on a brand new Yam who averaged 80 mpg much to his chagrin!) The previous year in switzerland i calculated that i hit 90mpg on one occasion. Ride like a granny means more mpg!
I have an SU carb fitted that makes a big difference to how the bike runs. I used to think that amals were to closest thing to uncontrolled fuel injection!
 
Had a big old SU mounted on an old panhead that dumped fuel in & out of the engine. Ran great , but a 2 gal peanut tank was always empty. Amazing carbs...I prefer Amal over that...really quite efficient for being dated in design.
 
dobba99 said:
Usually approx 70 mpg (Thats real imperial gallons)
On holiday, cruising along enjoying the scenery etc it can be anywhere from 80 to 90 mpg. Going to the Austrian International rally in 2018 I averaged 82mpg (checked against my friend on a brand new Yam who averaged 80 mpg much to his chagrin!) The previous year in switzerland i calculated that i hit 90mpg on one occasion. Ride like a granny means more mpg!
I have an SU carb fitted that makes a big difference to how the bike runs. I used to think that amals were to closest thing to uncontrolled fuel injection!
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That's incredible mpg I'd heard the SU conversion was good for economy
Did you do the primer conversion on yours or does it start fine?
Cheers
 
Not all who wander are Lost.
Yesterday I came back from a 1420 mile camp/ride trip. Exploring some of Northern Ontario roads.
We road up through Parry Sound , to stop in Lavigne, Ont., just to see Judy Fortier, our CNOA membership tavern, (had dinner there then camped). We did traveling though Temiskaming Shores, Kirkland Lake (Gold Town), on to Iron Bridge near Sault Ste. Marie, back East to Sudbury, continue to North Bay , then back South ,down to Perry Sound, to Pete,s place on Friday evening. I stayed that night, as it was past sunset and 486 miles under my seat for that day of riding. I then went south on the following day to my home in Southern Ontario. 1 Quart of Kendal Liquid Titanium GT-1 SAE50 was consumed which I carried extra.
Back to the beginning of the trip: I left my house, 133 miles to Pete's place and continued the same day then on, leaving on Tuesday 20th and I finally returned on Saturday 24th back in my garage at 15:00 pm.

3 riders: Me on my 850 74 Interstate Norton Commando, Peter Turner on his KLR 650, Dave Bryan's on his BMW RT80. (Both companion riders have Norton Commandos, but I was only on a Norton, brave enough to travel the long distance on a Commando riding the Great White North. ( I am emphasising this only to goad them to ride their Norton).:D
11 fuel stops latter and I averaged 95.53 ltrs of fuel consumed for (2285 km, for you metric geeks) which is 1420 Miles traveling.
Imperial Gallons=21.02 gallons
US Gallons =25.25 gallons.
My GPS tells me I did 1430.3 miles, but my clock on the bike indicates 1410, so I took the average of the two, though I tend to believe the Garmin
My bike repeated the best mileage of the three road riders, always showing the lowest gallons replaced in our tanks, when refuelling.
67.55 mpg imp which I think is not too shabby for a 45+ year old Norton with re-sleeved Mk1 Amals.

Peter damn near had a collision with a cow moose. I was behind him about 100 yards, when I noticed the moose in the ditch facing the road. Pete must not have seen her but as he got close she spooks and decides to make tracks just as Pete gets near. Hard braking saved his ass. Not something you need to deal with where we were travelling... not one house or cottage for an hour or a cell tower anywhere on that stretch... just trees and logging roads kicking off of the main road we were travelling on. It's pretty sparse in population.
Now don't be afraid :eek: my fellow Nortoneers, so do some mileage on your Norton. Then pipe in on what you get. Keep on keepin on.
Cheers
Tom.
 
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Hi All,
I got a pair of Wassell Evo carbs on the machine MKIII and on a long trip it was probably 50-55 mpg as
far as I could estimate. Mixed driving in back country Washington State.
Sincerely,
Kara
 
Hi

My road bike with 34mm dellorto pumpers never did 34 to the gallon. Mind you it was well rich & I never sorted it.
On the track!
I always top up with 3ltrs before I go out.
One sighting lap & six at full gallop seems to equate to 21mpg. On the good stuff.
Brought a smile to my face.
The only bike I ever tracked my fuel usage on was my T160 Trident. It was my daily commute & sold transport, I was 20. Never bettered 30 usually did 22 and a bit.
Never ran it gently
Chris
 
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