Drinking Problem

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FASTLIKEJUDY

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Apr 9, 2010
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After riding and racing TRIUMPH T140 motorcycles for 30 years I purchased a sweet 1974 Commando. I blame this forum. I ride the Commando in the New York Adirondack Mountains and have a tendency of opening the throttles on long uphill stretches. I have noticed I get about 37 miles per gallon and need to fill up at 85 miles. I nearly ran out of fuel my first time out. What is the largest Norton fuel tank that will fit the Commando and still retain the stock seat? Thanks for your response. Team FASTLIKEJUDY
 
Which '74 "stock" seat? Roadster? Hi-Rider? Interstate? (OK probably not Interstate, as you wouldn't empty an Interstate tank in 85 miles @37 MPG)

Sounds like you need an Interstate tank, so you'd need an Interstate seat.
 
I have a roadster. I believe the tank is about 2 1/2 gallons but I ave not measured the capacity exactly. What is the capacity of the Interstate tank?
Thanks
FASTLIKEJUDY
 
FASTLIKEJUDY said:
I have a roadster. I believe the tank is about 2 1/2 gallons but I ave not measured the capacity exactly. What is the capacity of the Interstate tank?
Thanks
FASTLIKEJUDY
Click to expand...

5-7 US gallons - depending upon the amount of bondo ( the tanks we a little inconsistent in manufacturing but believe around 6 gallons)
 
L.A.B. said:
FASTLIKEJUDY said:
What is the capacity of the Interstate tank?
Click to expand...

Approximately 6-1/4 to 6-1/2 US gallons.
Click to expand...


Ahh! The Interstate tank. Can't wait to try mine out!

Drinking Problem
 
FASTLIKEJUDY said:
After riding and racing TRIUMPH T140 motorcycles for 30 years I purchased a sweet 1974 Commando. I blame this forum. I ride the Commando in the New York Adirondack Mountains and have a tendency of opening the throttles on long uphill stretches. I have noticed I get about 37 miles per gallon and need to fill up at 85 miles. I nearly ran out of fuel my first time out. What is the largest Norton fuel tank that will fit the Commando and still retain the stock seat? Thanks for your response. Team FASTLIKEJUDY
Click to expand...

Might wanna check that Commando... my '74 gets 55-60 mpg.
 
37 mpg is what a WOT race bike might see not a street bike in small mountains.
Upper 40's lower 50's mpg is the average reported on the various Cdo set ups.
Hope your mileage is from racer joy reasons.

IS tank should be good for 300 miles. IS tank is like 5 inches longer than Roadster tank.
IS tank is secret handling device as only Norton road tank you can knee grip
leaned forward. Fiber glass IS tank weighs ~6 lb, same as steel Roadster tank.
Should sport a bigger Norton logo to match in my mind.

hobot
 
¾eah now you have to find one. waldridge had an allpy on sale for a g, i have been éooking for over a year and have not been able to be ib the right plaxe at thr right time i believe a manx tank can be fitted to the commando frame also,

i was shocjed to find my 72 got 64 mpg on avgas, just put in a tank of 93 and cannot wait to see if thar number remains the same
 
maylar said:
FASTLIKEJUDY said:
After riding and racing TRIUMPH T140 motorcycles for 30 years I purchased a sweet 1974 Commando. I blame this forum. I ride the Commando in the New York Adirondack Mountains and have a tendency of opening the throttles on long uphill stretches. I have noticed I get about 37 miles per gallon and need to fill up at 85 miles. I nearly ran out of fuel my first time out. What is the largest Norton fuel tank that will fit the Commando and still retain the stock seat? Thanks for your response. Team FASTLIKEJUDY
Click to expand...

Might wanna check that Commando... my '74 gets 55-60 mpg.
Click to expand...


Mine only does 25mpg.......I'm happy with that under race conditions!!!
 
i was shocked to find my 72 got 64 mpg on avgas, just put in a tank of 93 and cannot wait to see if that number remains the same
Click to expand...

So am I. If you are using the Smiths odometer to record distance, I would questions your mpg numbers. Try hanging a GPS on the bike and check the mileage.
 
I've got an acewell speedo/tach. I know it seems unbelievable. I plan to measure a circuit I take regularly in my car and compare it to the acewell which seems to me to be right on
 
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