92 miles per tank, really? - Page 4 - Triumph Forum: Triumph Rat Motorcycle Forums

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post #31 of 71 (permalink) Old 11-03-2012, 10:21 AM
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Geez....that's only 26MPG! I never get less than 120 miles until I hit reserve.....and that's in traffic for 13 miles per way. The worst I've ever gotten is 34MPG......(US Gallons) from my '08 Carb Thruxton.
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post #32 of 71 (permalink) Old 11-03-2012, 10:39 AM
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Interesting read, I must ride my S3 much too easy!

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post #33 of 71 (permalink) Old 11-03-2012, 01:01 PM
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"normal" ...

...stop and go mostly.
That pretty much accounts for the gas mileage.

These bikes have a very heavy crankshaft, used for vibration control. It takes energy/fuel to accelerate, which you're doing constantly in stop and go riding. That, and internal friction will be greater while the engine breaks itself in.

Try a ride at moderate speeds with constant throttle. You'll probably see at or near 50 MPG.

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post #34 of 71 (permalink) Old 11-03-2012, 01:27 PM
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Sit on the bike or put it on the centre stand so the tank is upright...!
Not on these bikes, the cap sits off centre to the right so when the bike's leaned to the left on the side stand the cap is closer to vertical, that's when you get more in.
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post #35 of 71 (permalink) Old 11-04-2012, 03:47 PM
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Not on these bikes, the cap sits off centre to the right so when the bike's leaned to the left on the side stand the cap is closer to vertical, that's when you get more in.
+1. I normally get about 40mpg while commuting - stop, go, and a bit of twisty action. If I took the ferry portion of my commute into account the mileage would be much better. Light usually comes on right around 115 miles.

On longer runs I can get a tad over 50mpg's.
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post #36 of 71 (permalink) Old 11-05-2012, 12:10 PM
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I'm with you on the low mileage problem. I've been getting just over 90 miles before I have to switch to reserve. Fill up nets me 3+ gallons so I've been averaging 27ish mpg.
This is the worst it gets, but I expect it for the riding I'm doing. Short 10mi commute to work, all on city streets with stop and go traffic, and spirited dashes to the next light, hardly get out of 2nd gear as speeds are 40 or less the whole way.
2007 T100, Preds, K&N pod filters, AI removed...
I hope that the mileage will be much better once I take a long country road, just haven't had that opportunity yet.
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post #37 of 71 (permalink) Old 11-05-2012, 12:31 PM
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I'll just add my two cents worth here. The mileage on these bikes is very dependent on conditions. I pay more attention to conditions and miles ridden and less attention to when the low gas light comes on. I know that on a long trip I will average 48-52 mpg on the highway, that's at 60-65 mph. If I'm on the freeway (70-80 mph) I only get about 45 mpg. I recently got 60 mpg on a day's ride when I kept the speed around 55 mph. If I'm just riding around town, in stop and go traffic, I just stop every 100 miles or so to fill up.

Yes, I am as big a pain in the ass in person as I seem to be on line.
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post #38 of 71 (permalink) Old 11-05-2012, 12:36 PM
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... I just stop every 100 miles or so to fill up.
My rule of thumb, in town or on the highway. After about 100 or 110 I'm aching for a stretch anyway.
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post #39 of 71 (permalink) Old 11-05-2012, 12:43 PM
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Well, that's exactly right!


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post #40 of 71 (permalink) Old 11-05-2012, 01:05 PM
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I have a new Bonnie T-100 and have noticed that my fuel light will come on early ( maybe around the 90s mile mark) and then go off. It came back on around 115 and has stayed on. I'm going to stretch it to 130ish and then fill up. I too feel that I should be getting more, but we'll see.


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