Filled my 1500 and drove till it ran out!


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Sassy
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Filled my 1500 and drove till it ran out!

Post by Sassy »



I went 345 klms, about 210 miles.
Pretty conservative riding ( for me anyway).
How does that compare to your 1500?
Mine is an 89.
Fred


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4given
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Re: Filled my 1500 and drove till it ran out!

Post by 4given »

Sounds about normal. Probably not too good on the fuel pump to do that very often in my opinion.
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Re: Filled my 1500 and drove till it ran out!

Post by AZgl1800 »

I agree,

typical MPG,

BUT, do not do that again.
The fuel pump is a plastic Vane Impeller and it requires fuel to keep it cool.

get less than 2 or 3 quarts of fuel covering the pump, and it won't stay cool.

I only burned up two of them, so don't ask how I know. :roll:

I'm lucky though, they were replaced under Warranty.
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Re: Filled my 1500 and drove till it ran out!

Post by Sassy »

Thanks for the imput didn't know the pump was so touchy. I have 80s honda quads with transfer pumps that have been run dry a few times with no problems do it wasnt even a consideration.
Typical of our gas gauges mine shows empty after about 80 miles so I wanted to know what a safe distance to ride on a fill up was. Im thinking 150 miles/ 250klms or so between stops.
Fred
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Re: Filled my 1500 and drove till it ran out!

Post by 4given »

I’m pretty sure 150 miles is a safe figure even if you drive aggressively.
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Re: Filled my 1500 and drove till it ran out!

Post by AZgl1800 »

the gas gauge can be fixed easily.

in short, empty the tank of fuel.

then pour in exactly 3.0 gallons of gas.

flip the OFF/ON/OFF switch to OFF.
Key on:

now, from the left side of the bike, reach in with your right hand and locate the float.
Move it up and down to get a feel for where the float should be, to make the fuel gauge read 1/2 tank.

Bend the float arm so that the gauge reads exactly 1/2 tank.
the result is that at 1/4 tank, you have 1.5 gallons of fuel.
at 1/8 tank you have about 3 quarts.

At Empty, you have about 1 pint of gas left.

I like that a lot better, than the guessing game with the OEM float setting.

Downside?
you have to ride more than 100 miles before the gauge begins to creep down.
who cares? you have a lot of gas in the tank .... when it reaches the 1/2 mark, you know precisely that 3 gallons is still there.

I was able to ride it down to 1/8 tank and fill up repeatedly with almost exactly the same amount of gas pumped each time.... I like it that way.
~John

2009 Piaggio MP3 250cc

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Sassy
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Re: Filled my 1500 and drove till it ran out!

Post by Sassy »

Thanks! I like the cost too!!
Fred
Edit
Oh darn now I have to ride more,,,,
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Re: Filled my 1500 and drove till it ran out!

Post by autonoob »

I am sure that you had so much fun on this expedition. Do you have any photos?
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Re: Filled my 1500 and drove till it ran out!

Post by Sassy »

I rode with a friend and we stopped for a thermos coffee
at this bridge on Perry back road north of Castlegar bc.
only pic I took.
Fred
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Re: Filled my 1500 and drove till it ran out!

Post by 68c15 »

A month ago I logged 223 miles before my low fuel light came on. About 60 miles in town, rest was back roads varying between 45 and 70mph. 97 SE
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Re: Filled my 1500 and drove till it ran out!

Post by Sassy »

Compared to my 210mi full to bone dry your bike did way better than mine!
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Re: Filled my 1500 and drove till it ran out!

Post by blupupher »

Wish I got that good a mileage.
I have a low of 21.4 mpg and a high of 37.1 mpg on a single tank, with an average of 29.3 mpg over 75 tanks.

I have had the low fuel light come on a few times that I know of (mine is very dim when it comes on), and never have gone more than 176 miles on a tank (filled with 5.439 gallons), most I have filled up with is 5.776 gallons (172 miles).

No idea how accurate my gauge is, but I do know it takes 70-80 miles before my gas gauge starts to move.

All info is pulled from my Fuelly.com info.

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Re: Filled my 1500 and drove till it ran out!

Post by Sassy »

68c15 wrote: Sun Oct 31, 2021 7:50 am A month ago I logged 223 miles before my low fuel light came on. About 60 miles in town, rest was back roads varying between 45 and 70mph. 97 SE
Thinking about it, is your riding fairly flat country? That full to empty ride I recorded had several mountain passes in it, a 4000ft climb on one alone and others of multiple 1000s. Yes I went downhill a lot too but the average is probably lower than flat country riding.
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Re: Filled my 1500 and drove till it ran out!

Post by offcenter »

I don't understand the low fuel mileage some of you are getting.
We're all riding the same bike. (or at least I think we are!)
I get about 42 mpg day in and day out on my '99. Many times I have ridden 220 miles before I stopped for gas. (just the other day in fact!) At 220 miles, I put in about 5.5 gallons of gas, meaning I still have nearly a gallon left. (if I remember correctly, the 1500 holds 6.3 gallons of fuel, right?)
I have a theory, just a guess really.
I have my windshield cut down very low since I am short and like to look over it.
Some of you are running very tall windshields. That means you are pushing a lot more air out of the way.
It takes more horsepower to do that.
It would be interesting if a bunch of you published how high your windshield is and what fuel mileage you get so a comparison could be made.
You can see how short my windshield is in the photo below.


Last edited by offcenter on Sun Oct 31, 2021 7:45 pm, edited 1 time in total.
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Re: Filled my 1500 and drove till it ran out!

Post by WingNoob »

Sassy wrote: Sun Oct 31, 2021 1:03 pm
68c15 wrote: Sun Oct 31, 2021 7:50 am A month ago I logged 223 miles before my low fuel light came on. About 60 miles in town, rest was back roads varying between 45 and 70mph. 97 SE
Thinking about it, is your riding fairly flat country? That full to empty ride I recorded had several mountain passes in it, a 4000ft climb on one alone and others of multiple 1000s. Yes I went downhill a lot too but the average is probably lower than flat country riding.
I rode my 97SE from Ontario to BC and back with a week riding all around BC. I didn't notice any appreciable difference in fuel economy between the plains and the mountains. I guess the downhill coasting makes up for the uphill throttle.

My historical average is 5.7 L/100km (41.5mpg) and on the trip my average was 5.9L/100km (~40mpg)(fully loaded for 3 weeks of camping). For the week that I was in BC my fuel economy was actually very slightly better than the trip average at 5.78L/100km.

I do take it fairly easy cruising at 110km/h, but I also enjoy launching the bike fairly hard from stop lights...

Oh, and I also run a Madstad windscreen, much shorter than the average 'wing screen.
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Re: Filled my 1500 and drove till it ran out!

Post by blupupher »

I have a 12" Madstad screen on the lowest setting as well, and had a Tulsa Tall type screen before, no real difference in mileage (but only had the bike for 3 months before swapping).

For me, the biggest thing is I am fat (360 lbs). Me one up is more than many two up (although I don't notice any real mpg difference when my 170 lb daughter rides on the back with me).
I am also very heavy on the throttle (I see 5000+ rpm's pretty frequently), as well as living in an area where I see 75 mph speed limits on a regular basis.
I also ride my bike to work all the time, and it is only 3 miles each way, and have mild traffic in the morning and heavy traffic in the evening. If I only ride to and from work, I get 27-28 mpg.

I took a 400 mile ride yesterday. First tank was 26.4 mpg (130 miles/4.993 gallons), 2nd tank was 32.02 mpg (148 miles/4.62 gallons), 3rd tank was 34.9 mpg (130 miles/3.726 gallons).
The difference, the 1st tank was 95% highway at speeds a lot faster than the posted 75 mph speed limit for over 90 miles of it.
2nd tank was at speeds between 55 and 75 mph on more rural roads, some very mild hills, about 10 minutes total idling, with several stops through small towns.
3rd tank was also 130 miles, all but 3 of those were highway with cruise set at 65-75 the whole way.

All of this is on regular unleaded with 10% ethanol.
I have tried ethanol free as well as premium and noticed no difference in performance or mileage, so no worth $1 more per gallon for me to do that.
Last edited by blupupher on Sun Oct 31, 2021 7:09 pm, edited 1 time in total.
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Re: Filled my 1500 and drove till it ran out!

Post by WingAdmin »

offcenter wrote: Sun Oct 31, 2021 3:48 pm I don't understand the low fuel mileage some of you are getting.
We're all riding the same bike. (or at least I think we are!)
I get about 42 mpg day in and day out on my '99. Many times I have ridden 220 miles before I stopped for gas. (just the other day in fact!) At 220 miles, I put in about 5.5 gallons of gas, meaning I still have nearly a gallon left. (if I remember correctly, the 1500 holds 6.3 gallons of fuel, right?)
I have a theory, just a guess really.
I have my windshield cut down very low since I am short and like to look over it.
Some of you are running very tall windshields. That means you are pushing a lot more air out of the way.
It takes more horsepower to do that.
I would be interesting if a bunch of you published how high your windshield is and what fuel mileage you get so a comparison could be made.
You can see how short my windshield is in the photo below.
Glamour3.jpg
You got it. Tall windshields create an incredible amount of drag, which significantly affects fuel efficiency. All vehicles get worse mileage as speed increases (drag increases as a square root of velocity), but when you have a tall windshield, that drag is MUCH higher. With my Tulsa Tall windshield, I have a tough time reaching 35 mpg when travelling at 70 mph.
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Re: Filled my 1500 and drove till it ran out!

Post by Sassy »

Ya probably my windshield, it's so tall it actually is a hindrance to getting on the bike.
It came that way and I like the lack of buffeting on the helmet so guess I gotta pay for it.
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Re: Filled my 1500 and drove till it ran out!

Post by offcenter »

Hopefully, more people will chime in on this discussion.
I definitely think the tall windshield has something to do with it.
But I suspect there may be other things involved for some
of you.
George in Jersey.
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Re: Filled my 1500 and drove till it ran out!

Post by Rambozo »

How you ride, makes the biggest difference of all. If I putt along like grandpa, obeying the speed limit and short shifting with minimal throttle, I have gotten well over 40 mpg. However, when I took it to the race track that changed to less than 14 mpg.
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Re: Filled my 1500 and drove till it ran out!

Post by 4given »

Two main things affect my fuel mileage.
1. Windshield-I have two. One tall that I use when the weather turns chilly and one that I cut down about 4 or 5 inches and use all summer. Big difference- about 3 or 4 mpg.
2. How I drive. I mostly drive like an old person, which I am. I can get over 40 mpg with the short screen. If I decide to pretend I’m young again an get aggressive for a tank full, my mileage suffers noticeably, to the tune of 4 or 5 mpg. And like Scott said, the faster I go the worse the mileage gets.
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Re: Filled my 1500 and drove till it ran out!

Post by FM-USA »

1991 GL1500-I with the Tulsa Tall windshield.
One day I had the opportunity to ride the same back roads loop twice, second time was reverse route. The wind was nill, roads were worn and basically Illinois flat. Miles ridden was around 200, 400 mile day. Both directions I got 50.88 mpgs. My back road riding hovers around 50 mph average. There are some stop signs and stop lights along with slower drivers.
There is a mpg difference between 1-up and 2-up riding. Riding 1-up the wind that collapses right behind you puts pressure on the passenger seat backrest, in essence a small sail. It's noticeable enough on brisk wind days where you feel the bike being push/pulled as the gusts swirl around you to the back seat.

Try filling up a laundry or yard bag about the size of a person and tie it on the passenger seat. Go for a repeat ride 1-up without the bag then with. You will notice the difference.
You'll get a near accurate repeat fill-up reading on the center stand. When filling your tank and is nearing the top, slow the pump way down. Then when you see air bubbles exiting the little vent hole on the filler tube stop & take your pump reading. That little hole is on the right side (sitting on the bike) JUST forward of center line.

.

.
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Re: Filled my 1500 and drove till it ran out!

Post by Happytrails »

Same thing for me avg maybe 33mpg, if keep my speeds down can get as much as 39mpg. Tall windshield may hurt mileage more, just the standard height here. Roads could also effect its very hilly here. Very fun to ride but maybe using more gas. Dont think I'll be able to read 200 miles often. :)
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Re: Filled my 1500 and drove till it ran out!

Post by offcenter »

Wow! 33 mpg?? If that happened to me, I'd be looking for a leak somewhere!
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Re: Filled my 1500 and drove till it ran out!

Post by DenverWinger »

33-36 MPG normally. But I have a big sail called a Tulsa Tall I push around in front. I can get 42-44 if I'm slowly touring the mountain twisties and keep speed under 40.


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