Fuel Readings - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 15 (permalink) Old 06-16-2019, 08:03 AM Thread Starter
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Fuel Readings

Wondering what other owners have experienced. Yesterday the "fuel pump" idiot light went on; the odometer (as it should) started displaying mileage range; then it eventually indicated "Low". Pulled into a gas station and the tank took 5 gallons to top it off.

So did I still have over a gallon of gas left when I pulled into the gas station or is the fuel gauge indicator inaccurate? Anyone have similar experiences?

2018 SVTC (red)
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post #2 of 15 (permalink) Old 06-16-2019, 08:27 AM
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I would probably check the owners manual on the tank specs. I assume you have fuel injection.
I would assume when the low light comes on you have 1/2 gal. On my old vtx when the low fuel light came on i had about 30 miles to go before i was out.
My Vstar has carbs and a reserve tank but has the same gauge as my vtx (trip odometer)

I ain't lost until the tank is empty!
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post #3 of 15 (permalink) Old 06-16-2019, 09:15 AM
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I have went 38 miles with my light on and pumped 6 gallons. I know the sytem is based on your average MPG so every light would not come on with 1 gallon left. I'll assume the light is set to come on with 50 miles range remaining, I really hammer mine and get 25 MPG, my ligt would come on with 2 gallons remaining. If you really babied yours and got 50 MPG, your light would come on when you had 1 gallon left. That being said I still think they built in additional reserve, which I like.
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post #4 of 15 (permalink) Old 06-18-2019, 08:49 AM
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Quote:
Originally Posted by Bucfan11 View Post
I have went 38 miles with my light on and pumped 6 gallons. I know the sytem is based on your average MPG so every light would not come on with 1 gallon left. I'll assume the light is set to come on with 50 miles range remaining, I really hammer mine and get 25 MPG, my ligt would come on with 2 gallons remaining. If you really babied yours and got 50 MPG, your light would come on when you had 1 gallon left. That being said I still think they built in additional reserve, which I like.
You would be correct Rob @Bucfan11 .
The system monitors your fuel usage and adjusts WHEN your fuel fuel reserve kicks in to give you about 50 miles before BINGO.
If you baby it, you’re going to have less in Reserve cuz you don’t need as much to go the distance. If you romp on it all the time your fuel usage is greater and the reserve will kick in sooner so that you can go the distance.
THIS is WHY when you fill up cuz the light came on, you don’t always add the same amount to fill up. It depends on your usage.
The bike is smarter than we are!
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post #5 of 15 (permalink) Old 06-18-2019, 10:00 AM
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Technology bah humbug.
Give me a stick and some string and i'll go fishing
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I ain't lost until the tank is empty!
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post #6 of 15 (permalink) Old 06-19-2019, 10:20 AM
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Originally Posted by Deeksvstarclassic View Post
Technology bah humbug.
Give me a stick and some string and i'll go fishing

oops i for got most important part BEER

I ain't lost until the tank is empty!
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post #7 of 15 (permalink) Old 06-19-2019, 08:42 PM
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Originally Posted by Deeksvstarclassic View Post
Technology bah humbug.
Give me a stick and some string and i'll go fishing
Your envy is duly noted.
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post #8 of 15 (permalink) Old 06-19-2019, 10:02 PM
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Hi Guys! I have a 2010 XV1900 Raider and the tank only holds 4.2 gallons with a .85 reserve when the light comes on. I get anywhere between 30 & 35 MPG depending on how and where I drive. The thing that gets me is a 1900cc bike with such a small fuel capacity! When the light comes on I MUST find a gas station because I only have about 25 to 29 mile before I'm SOL! I only have about 140 miles per tank and it always seems like I'm in a gas station filling up! This really sucks on longer trips! It doesn't help that the previous owner installed a Vance & Hines Big Radius 2 into 1 exhaust with the fuelpak (which I love the look, sound & performance) I love the bike but it's funny when the wifey asks why there's all these gas station charges every few days! LOL
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post #9 of 15 (permalink) Old 06-20-2019, 07:59 AM
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that is the thing about modifying a stock Vstar bike - the yamaha engineers did a really good job of tuning these bikes for emissions and fuel economy

and they have the equipment to get the air/fuel mixture exactly right for both. When you modify a bike without that equipment then you must err on the side of making the bike too rich,

because if you change things and its too lean, it will burn holes thru the tops of your pistons and destroy the valves.

Laws of physics remain in effect, you cannot get more HP by modifying a stock bike without needed to feed it more fuel.
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post #10 of 15 (permalink) Old 06-20-2019, 09:07 AM
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Originally Posted by ordgoyo5 View Post
Hi Guys! I have a 2010 XV1900 Raider and the tank only holds 4.2 gallons with a .85 reserve when the light comes on. I get anywhere between 30 & 35 MPG depending on how and where I drive. The thing that gets me is a 1900cc bike with such a small fuel capacity! When the light comes on I MUST find a gas station because I only have about 25 to 29 mile before I'm SOL! I only have about 140 miles per tank and it always seems like I'm in a gas station filling up! This really sucks on longer trips! It doesn't help that the previous owner installed a Vance & Hines Big Radius 2 into 1 exhaust with the fuelpak (which I love the look, sound & performance) I love the bike but it's funny when the wifey asks why there's all these gas station charges every few days! LOL
It was the same when i had my 1800 VTX. I am assuming that you didn't get a 1900 for the fuel milage. My light went on about 120-130 if i stood the bike up to get a full fill.

I ain't lost until the tank is empty!
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