Odometer zeroed out!

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bikerskier

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Started up my 05 after a quick trip to the Depot and a block later, I noticed my fuel indicater blinking on 1 bar and thought , damn, this thing is getting crappy mileage, and then noticed my odometer was zeroed out. a couple of blocks down the road, the fuel indicater stopped blinking and moved up to 3 bars which is what i expected to see but the odometer was slowly starting out at zero miles and adding the 10ths. Well, after about 4 miles, it suddenly returned to the true mileage. Has anyone had this experience or might hazard a guess to the cause of this odd little event? Should I ignore it and add it up to the eccentricies of the bike or should I get something checked out?

 
Thats standard. When it goes on reserve it counts the miles ridden on reserve.

When it registers more fuel it canceles itself.

 
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I noticed my fuel indicater blinking on 1 bar and thought , damn, this thing is getting crappy mileage, and then noticed my odometer was zeroed out. a couple of blocks down the road, the fuel indicater stopped blinking and moved up to 3 bars which is what i expected to see but the odometer was slowly starting out at zero miles and adding the 10ths. Well, after about 4 miles, it suddenly returned to the true mileage. Has anyone had this experience or might hazard a guess to the cause of this odd little event?

My bike was doing the exact same thing as your describing, only when the tank was getting low. It would drop to empty and zero out the clock to warn of an impending empty gas tank. But I knew there was still plenty of gas in the tank. This is not normal. Prior to this problem my fuel gauge would be steady all the way to empty, never fluctuating in any way.

To make a long story short, I had the entire fuel pump assembly replaced under warranty. I replaced the part myself and found out what I think was my cause when I removed the old assembly from the tank.

One of the hinges of the float had come out of location, so as the gas got lower in the tank I think it was sometimes pivoting sideways instead of straight up and down, causing the erratic fuel gauge near empty.

 
bikerskier - your condition sounds like you had your fjr on the sidestand when you started it up. In that condition, the fuel gauge will read lower than the tank really is. And will take a while to get back to normal.

Is it possible that's what happened?

 
bikerskier - your condition sounds like you had your fjr on the sidestand when you started it up. In that condition, the fuel gauge will read lower than the tank really is. And will take a while to get back to normal.
Is it possible that's what happened?
That's been my experience, too. Sometimes it starts over, some times it cancels itself and goes back to normal mileage and fuel metering. Just know I'm low on fuel and it won't be long after I head out that I need gas.

Now, if it did this and you hadn't been parked on the side stand with low fuel, or you were en route and the odo went back and forth, I'd be concerned.

 
Started up my 05 after a quick trip to the Depot and a block later, I noticed my fuel indicater blinking on 1 bar and thought , damn, this thing is getting crappy mileage, and then noticed my odometer was zeroed out. a couple of blocks down the road, the fuel indicater stopped blinking and moved up to 3 bars which is what i expected to see but the odometer was slowly starting out at zero miles and adding the 10ths. Well, after about 4 miles, it suddenly returned to the true mileage. Has anyone had this experience or might hazard a guess to the cause of this odd little event? Should I ignore it and add it up to the eccentricies of the bike or should I get something checked out?
Its one of the things you don't get used to, when your fuel changes to zero and counts up from 1.1, 1.2 1.3 etc. They should make a patch where it counts down like the rest of the industry gauges.

 
bikerskier - your condition sounds like you had your fjr on the sidestand when you started it up. In that condition, the fuel gauge will read lower than the tank really is. And will take a while to get back to normal.
Thats definately what happened. Your owners manual describes the ODO fuel reserve trip meter in operation in chapter 3.

From the manual:

"When approximately 5 L of fuel remains in the fuel tank, the display will automatically change to the fuel reserve tripmeter mode. "TRIP F" and start counting the distance traveled from that point."

It's amazing that nobody reads a vehicle owners manual. I read mine cover to cover, along with the shop manual.

 
Its one of the things you don't get used to, when your fuel changes to zero and counts up from 1.1, 1.2 1.3 etc. They should make a patch where it counts down like the rest of the industry gauges.
I disagree. Remaining miles requires algorythms for fuel consumption that are seldom accurate (BTDT). I've had many bikes with a low fuel light, too. The problem is that you seldom notice the exact moment it comes on. The FJR fixes all that by letting you know how long ago the low fuel indicator came on AND by letting the most powerful computer in the world[1] estimate how far you can go until you're out of gas.

[1] the human brain.

 
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bikerskier - your condition sounds like you had your fjr on the sidestand when you started it up. In that condition, the fuel gauge will read lower than the tank really is. And will take a while to get back to normal.
Is it possible that's what happened?
Mark it down...05/05/2006....RadioHowie agrees with SkooterG.

Starting an FJR with low fuel on the sidestand (if the fuel is low enough) will fool the gauge ECU into thinking the tank is empty and after you stand the bike up and drive away, the display returns to "normal" in a block or two.

Happens to me all almost every time the fuel drops to 3 bars or less, as I almost always crank the sucker and let it warm up a few seconds while I'm gearing up -- usually at the helmet/gloves stage.

Its one of the things you don't get used to, when your fuel changes to zero and counts up from 1.1, 1.2 1.3 etc. They should make a patch where it counts down like the rest of the industry gauges.
I disagree. Remaining miles requires algorythms for fuel consumption that are seldom accurate (BTDT). I've had many bikes with a low fuel light, too. The problem is that you seldom notice the exact moment it comes on. The FJR fixes all that by letting you know how long ago the low fuel indicator came on AND by letting the most powerful computer in the world[1] estimate how far you can go until you're out of gas.

[1] the human brain.

+1000 on Bounce's response, and to elaborate further...

Let's say you hit the magic "miles to go" mark just before you start a long, uphill run in the mountains. There's no way the mileage computer can know you're about to hit a stretch of road where your mileage is going to drop because of gravity, so you run out of gas because you trusted the computer. Conversely, the "miles to go" calculation will be off as well if you hit the magic mark at the top of the continental divide and you're going to be coasting for the most of the next 20 miles. Then it would underestimate how much gas you have left.

However, you, with the brain the size of a planet, know that your FJR, which has averaged 42 miles per gallon over the last 25,000 miles, has at LEAST 42 miles to find the nearest gas station. If you're headed downhill, as in my example above, you know you'll have MORE than 42 miles.

The count-up-the-miles feature of the FJR odo seems counter-intuitive, but in the real world, it's the smartest way to indicate your "drop dead" point.

 
Skooter

You the man! It was on the side stand. I stand firmly educated now in the subject of low fuel indicator status. Were you an accomplice of the TV show Dr. House at one time, making great analytical diagnoses of exotic ailments? Or did you read the manual like some suggest?

I despise reading manuals, must be my anti anal need for detail. Too much detail in my work life to screw with in my play life. Just work, baby!

Thanks to all who responded!

 
SkooterWere you an accomplice of the TV show Dr. House at one time, making great analytical diagnoses of exotic ailments? Or did you read the manual like some suggest?

No.

But I did sleep in a Holiday Inn Express last night. ;)

Warranty replacement of the fuel pump/sending unit?!?!?! :eek:

Sheeesh! Ya think somebody's juuuuuuuust a bit paranoid or something?

 
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Geeze -- now I know exactly what to expect when mine show up! (tongue in cheek)....

so -- who knows the real scoop on how it works?

 
SkooterYou the man! It was on the side stand. I stand firmly educated now in the subject of low fuel indicator status. Were you an accomplice of the TV show Dr. House at one time, making great analytical diagnoses of exotic ailments? Or did you read the manual like some suggest?

I despise reading manuals, must be my anti anal need for detail. Too much detail in my work life to screw with in my play life. Just work, baby!

Thanks to all who responded!
Jeeez.........and Spinnys head just gets bigger and bigger and bigger and...... :D

 
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so -- who knows the real scoop on how it works?

Huh? Not sure what you mean.

bikerskier's condition occurred because the float for the fuel gauge sending unit is on the right side of the tank. So when the FJR is on it's sidestand, all the gas pools to the left side of the tank and if the ignition is turned on, will give a false low reading, perhaps low enough to activate the "virtual reserve", which starts a new odo counting up and gives a flashing last fuel bar.

As you ride the bike, fuel level gets level, raising float. There is a delay in the algorithm however, so it takes a while for the gauge to read true level, thereby canceling the false "virtual reserve" that was showing. The delay is there to prevent erratic fuel gauge readings while stopping/accelerating, traveling over bumps ect.

Clear as mud? Yes?

 
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I always have gained a bar or two when standing the bike upright after it sat on the sidestand. Seemed as natural to me as looking in the mirror and being astonished at the phenomenal image staring back. Gotta take that pic of Zeta-Jones off of there-wife's getting all weird and ****. :D

 
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Skooter

Were you an accomplice of the TV show Dr. House at one time, making great analytical diagnoses of exotic ailments? Or did you read the manual like some suggest?

No.

But I did sleep in a Holiday Inn Express last night. ;)

Warranty replacement of the fuel pump/sending unit?!?!?! :eek:

Sheeesh! Ya think somebody's juuuuuuuust a bit paranoid or something?

I guess I should of made it clear that MY gauge was all effed up when riding along in a straight line. :D

"Paranoid" who me?

For the record I don't park my bike long enough to allow gas to settle on the left side, whats that all about? :p

 
"Paranoid" who me?

skyway -- just cause your not paranoid doesn't mean they're not after 'ya!..... be careful... they may be watching you.

 

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