Gas mileage

[oldskool]

Last 10 average: 157.9

View attachment 8056

I do not see how this is possible unless you live somewhere that is all downhill with a back wind. Educate me on how this is possible, never lower than high 120s up to almost 200.

 

[m in sc]

WHEN IT WAS BONE STOCK I GOT LIKE 110 ish, now im somewhere in the high 70's to low 80s wide open a lot averaging 52-64 mph.

 

[SneakyDingo]

I do not see how this is possible unless you live somewhere that is all downhill with a back wind. Educate me on how this is possible, never lower than high 120s up to almost 200.

Must have somehow figured out how to go the opposite of my Dad's commute when he was going to school. He always said it was uphill both ways, through the snow, barefoot over broken glass...

 

[raito]

I do not see how this is possible unless you live somewhere that is all downhill with a back wind. Educate me on how this is possible, never lower than high 120s up to almost 200.

Just looking at my average is about right, just above the 63km/L (148mpg) rating on the official JP website. My speedometer is also maybe 3mph optimistic at high speeds. My earlier fill-up MPGs were very not accurate and too erratic as a result of using a 6L jerry can in the calculation. I couldn't fill it up to the same level every time. Maybe I should add that I'm fairly light at just over 100lbs and that where I am is summer all year, which is better for fuel efficiency than cold weather right?

 

[heirhead]

Not really relevant, but
In 1971 rode a 65 Trail 90 1080 miles from Garden Grove Ca. to Yellowstone PK,
West Yellowstone entance. Not sure of mileage but $3.08 in gas. Met my friend who rode a ? yr.
Trail 90 there also 5 days earlier. We then proceeded to go to his Uncles Ranch in Bozeman Mt.
Sold the bike on a radio station where you could say your ad live. Bought a 1959 VW Camper Van, drove home.
Wish I still had both, especially the Van, $$$$$
Sold Monkey last month as Left hand is messed up, can't use clutch.
Need to ride so bought used 2023 CT with 260 miles, have to ride, Right!!
Happy riding,
Pic of new one, pic of friend 1971
hh
wwm

 

[Tex68w]

Not really relevant, but
In 1971 rode a 65 Trail 90 1080 miles from Garden Grove Ca. to Yellowstone PK,
West Yellowstone entance. Not sure of mileage but $3.08 in gas. Met my friend who rode a ? yr.
Trail 90 there also 5 days earlier. We then proceeded to go to his Uncles Ranch in Bozeman Mt.
Sold the bike on a radio station where you could say your ad live. Bought a 1959 VW Camper Van, drove home.
Wish I still had both, especially the Van, $$$$$
Sold Monkey last month as Left hand is messed up, can't use clutch.
Need to ride so bought used 2023 CT with 260 miles, have to ride, Right!!
Happy riding,
Pic of new one, pic of friend 1971View attachment 8059
hh
wwm
View attachment 8057

What an awesome story and the pic to go with it, thanks for sharing!

 

[heirhead]

Have one of my friend, my Mom took it, none of me!!

hh
wwm

 

[FizzBuzz3000]

I currently get ~120 miles per refill due to mixed tar/gravel riding, at 40-43 MPH. For the first notch on the fuel gauge I can get around 40 miles before it blinks off, and ~15-20 miles for every other notch. I usually refill when down to a 1/3 tank. The fillup is usually 1.03-1.06 gallons of gas. Perfect range for me since I can find a gas station easily, though I do need to find a aux gas tank I can use so I can effectively double the range.

 

[SneakyDingo]

A few people use gas bottles and a center rack, I have a 2 gal rotopax can that I'm actually not that much of a fan for this particular bike. Because it's sips fuel so efficiently, the losses (possibly due to vapor?) are actually noticeable when tracking that data, about a 3-4% loss over 4 days. This is comparing it against, for example, a ride where I am using the rotopax that very same ride.

 

[Tex68w]

An MSR 1L fuel bottle is all anyone really needs on these bikes. That’s an extra 25 miles giving you a range of +/- 150 miles, there are few places in this country where one would ride this bike that they couldn’t find fuel within that range. If you need more for whatever reason a Giant Loop fuel bladder is the answer.

 

[SneakyDingo]

I think realistically it becomes a time-cost tradeoff: you can spend a little extra on an appropriate gas can, beg and rely on the goodwill of strangers and get mystery fuel, or pay for a service like AAA and trade time and money against self sufficiency.

For regular rides, hard agree, the ~1L fuel bottle is the way to go if you have to buy anything. In a well serviced area like my regular commutes though? I accept that I can push this bike up every hill between me and wherever I get my fuel from. I choose to trade time and money, because all my gas stations are as @Tex68w, I think the biggest gap between them is 2 miles.

The rotopax has saved my butt twice in situations where the fuel station I was relying on was closed, either for repairs or for the season - once on Mt. Rainier, once on the CDT. But it's definitely not the right choice where you need it that day, not need it over consecutive days that week.

 

[Taxidermist63]

I got over 100mpg and that’s driving a big portion of it at 55+mph on flat land and I’m 185lbs 6’1 so I wasn’t cutting through the wind.

I get in the low 90s.

 

[Just_Jack]

What’s everyone using as their fill level line to make sure that they’re refilling to the same level when they go to the pump? I recently filled for the third time and am sitting at around 250-ish miles with a mostly full tank so I’m guessing around 100mpg but I may not be refilling to the same level each time and every drop counts with these itty bitty gas tanks.

Riding in stop-and-go city traffic, mostly flat terrain, probably spending most of my time between 28-42mph.

 

[oldskool]

On the sides stand, fill until it touches the lower part of the bar.

 

[dmonkey]

On the sides stand, fill until it touches the lower part of the bar.

I do the same but on the center stand. Owner's manual just says not to fill past the bottom of the filler neck. I also keep a running average of fill-ups which smooths out any inconsistencies in filling. Not practical at low mileage, but it is if you're filling up more regularly.

 

[SneakyDingo]

I do the same but on the center stand. Owner's manual just says not to fill past the bottom of the filler neck. I also keep a running average of fill-ups which smooths out any inconsistencies in filling. Not practical at low mileage, but it is if you're filling up more regularly.

I do this unless I'm filling up at the start of my ride home. Then I'll give the bike a little shake and squeeze a tiny bit more in since I'll be burning ~0.2 gal just getting home. FWIW I'm on about 13k miles, tracking my mpg long term, and I'm on 103 mpg with the SR244 tires (the OEM tires get better mileage).

EDIT: Lifetime = 12,916 mi @ 121.39 gal, median distance to empty 148 mi.

 

[dmonkey]

If you haven't dialed in the OPMID settings for the 244s then keep in mind when comparing to stock that the 244s are slightly taller. So if the meter is adjusted for stock tires it will under report the speed, trip, and odometer reading which would have some impact on MPG calculation if that's where you're pulling the mileage from.

I've got that issue with larger than stock tires on my truck right now. Waiting on a correct speedo gear that is backordered. In the meantime my MPG calculations are all inaccurate and terrible unless I use the GPS to measure trip distance.

 

[SneakyDingo]

If you haven't dialed in the OPMID settings for the 244s then keep in mind when comparing to stock that the 244s are slightly taller. So if the meter is adjusted for stock tires it will under report the speed, trip, and odometer reading which would have some impact on MPG calculation if that's where you're pulling the mileage from.

I've got that issue with larger than stock tires on my truck right now. Waiting on a correct speedo gear that is backordered. In the meantime my MPG calculations are all inaccurate and terrible unless I use the GPS to measure trip distance.

Truth, and it's worth doing each time you swap a tire over as the calibration isn't very hard. There's 2 adjustments on the OPMID calibration that are possible to make, so I dialed it in with both the wheel OD and use the % adjustment to match GPS speed and the speed signs near my house. Usually the % only goes up or down by 0.1 or 0.2% though.

 

[Farmer Mike]

Well, I know I've seen this somewhere here, but gonna ask anyway... I swapped out the front sprocket, and Donkey immediately started lying about how fast he is going... I know good and well, he just didn't up and start running 58 MPH all of a sudden. So I'm also guessing he isn't telling the truth about how far we are going either. Is there some way to fix this and keep the 13 tooth sprocket... I'm beginning to really like that thing... at first I didn't think it made much difference. But after 50 or so miles according to that lying donkey, it's growing on me.

 

[dmonkey]

Right, if the speedometer isn't reading accurately then the trip meter and odometer are also not tacking on an accurate measure of distance. Some options to fix this are to install a different speedometer that is programmable, or a speedometer healer. Both of these claim to work with the JA55. If you have the 2023+ JA65 then contact the vendor or manufacturer to confirm before buying.

OPMID : Dr. Speed Vehicle Speed Signal Correction Kit [M1403]

SpeedoDRD