Fuel consumption ?

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Major Softie
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Re: Fuel consumption ?

Post by Major Softie »

bbelk wrote:Both my R65 and my R90 are in the 40 - 45 MPG range with the R65 falling off fast above 60 MPH and the R90 falling off above 70 MPG.

I also suspect, but have never really tested, that the performance picks up at lower speeds. It would be interesting to know what the max range speed and RPM would be. It was actually in the owners manual on my 1968 Bridgstone 175 and it was something like 25 MPH in third.
That sounds about right. In cars it's usually in the 30-35 mph range, and they're much more aerodynamic than bikes.
MS - out
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enigmaT120
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Re: Fuel consumption ?

Post by enigmaT120 »

I got stuck behind an F250 with a heavy load yesterday. I couldn't see what was in the bed, a big box, but his suspension was letting the truck wallow all over. I was in my '04 Insight, and wow I get good mpg. in 5th gear at about 40. Only mid-50s with my normal driving, at least until it warms up.
Ed Miller
'81 R65
'70 Bonneville
Falls City, OR

"Gasoline makes people stupid." -- Chuey
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Steve in Golden
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Re: Fuel consumption ?

Post by Steve in Golden »

I get 50 MPG or thereabouts with my R1200GS.
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bbelk
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Re: Fuel consumption ?

Post by bbelk »

Steve in Golden wrote:I get 50 MPG or thereabouts with my R1200GS.
All that and horsepower too. Yes there is a little envy.
1975 R90/6
1979 R65
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Sibbo
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Re: Fuel consumption ?

Post by Sibbo »

OK, mine is bad , I thought it was too so two sets of needle and seats . More money but this will pay for itself.
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Steve in Golden
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Re: Fuel consumption ?

Post by Steve in Golden »

bbelk wrote:
Steve in Golden wrote:I get 50 MPG or thereabouts with my R1200GS.
All that and horsepower too. Yes there is a little envy.
Yahbut the dang thing sure was expensive. It has OK power, certainly more than an airhead, but it's slow compared to the '08 R1200R I had (which also got around 50 MPG). A hell of a lot more comfortable though.
Bob Bennett
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Re: Fuel consumption ?

Post by Bob Bennett »

Sibbo wrote:OK, mine is bad , I thought it was too so two sets of needle and seats . More money but this will pay for itself.
Hi Pete,
Not the needle & seats mate but the needle & needle jets, the needles are situated in the slide
below the diaphragm and the n/jets are above the main jet.

Regards Bob.
Regards, Bob
R80 RS
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Sibbo
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Re: Fuel consumption ?

Post by Sibbo »

Bob Bennett wrote:
Sibbo wrote:OK, mine is bad , I thought it was too so two sets of needle and seats . More money but this will pay for itself.
Hi Pete,
Not the needle & seats mate but the needle & needle jets, the needles are situated in the slide
below the diaphragm and the n/jets are above the main jet.

Regards Bob.
Thanks Bob, carburetters are someting on a long list of things I know nothing about . ;) At least I can now order the right bits !
"You ain't gonna learn what you don't want to know"
The Grateful Dead
montmil
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Re: Fuel consumption ?

Post by montmil »

bbelk wrote:Both my R65 and my R90 are in the 40 - 45 MPG range with the R65 falling off fast above 60 MPH and the R90 falling off above 70 MPG.
This mileage is pretty much what my two R65s -81 and 83- and my '78 R100S obtain. I used to track fuel usage and mpg but my wrist finally got the better of me so my figures would be worthless. On longer trips, I'll flight plan for 35-40 mpg just to err on the safe side. Some wise sage once said, "Motorcycle boots are not made for walking".

BTW, my bride pays more for a gallon of fancy bottled water than I do for a gallon of gas.
1981 R65
1983 R65
1978 R100S
1995 Triumph Trophy
Major Softie
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Re: Fuel consumption ?

Post by Major Softie »

montmil wrote: BTW, my bride pays more for a gallon of fancy bottled water than I do for a gallon of gas.
Yeah, but does she consume a gallon and a half an hour? If so, I'm sure you have to make enough stops to drastically decrease your gasoline consumption per hour....

;)
MS - out
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