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JT's 03 Custom V
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Discussion Starter #1
I have an 03 VRSCA with the common fuel gauge problem (doesnt read correctly) and still trying to determine how far can I go before empty... It has the 3.7 tank so I never try to go beyond 110 miles.

Anyone have better experiences or more accurate to empty with the 3.7?
 

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i have an 04-a and at about 100 miles & i am filling up as well. that's about as far as you can go with the stock tank unless you are rolling at 3.5 grand on the tach in 5th gear (about 55mph). i have the 5 gallon ue tank sitting in the garage i plan on installing this winter. looks like you need to make the same mod.
 

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Partlino
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72 Posts
I regularly get about 130-140 miles out of the 3.7g tank. Being that the fuel gauge is just a "suggested reading", my history is that as soon as the needle hits the "E", I have about .5 gallons left, which gets me about 20 miles. Usually the needle hits the "E" around 120 on the trip odometer, and that's when I start looking for gas, just to be safe. The "R" reading on the odometer is useless, and is switched to "low" once the tank gets below 1/4 full, which is pointless, as that is when the range feature would be of the most use.
 

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JT's 03 Custom V
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Discussion Starter #5
your speedo is better than mine... I am at empty after 20miles- according to my dial.

I keep a close eye at my driving (city/highway) and mileage.
 

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K.I.A. '07 AW
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10,908 Posts
best method would be to strap on a gallon gas can and ride until the bike is empty. Note mileage, pour the gallon of gas into the tank, then fill up and KNOW for sure how many miles you get on YOUR bike
 

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your mileage per tank can vary a lot...

when I had the 3.7 tank I would sometimes only get 90 miles before the needle pointed to 'E' - this would be on twisty roads with lots of midrange throttle coming out of turns.

I had one time when I KNEW there wasn't gas for a while so I took it easy in Missouri - to the tune of riding 50mph in 5th gear for a long distance - I filled up with nearly 150 miles on that tank.

I wouldn't push it much past 100 miles if your fuel gauge isn't working.

Also, beware that running the tank of out gas as an experiment may decrease the life of your fuel pump. It's been documented many times that the pumps can get hot and burn up if you run it out of fuel (true in cars too, btw).
 

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i have an 04-a and at about 100 miles & i am filling up as well. that's about as far as you can go with the stock tank unless you are rolling at 3.5 grand on the tach in 5th gear (about 55mph). i have the 5 gallon ue tank sitting in the garage i plan on installing this winter. looks like you need to make the same mod.
How much was the 5 gal tank? Also, do you know if it will "fit" in the same space as the original tank without altering the bike? Doesn't sound like a complicated mod. Obviously it is bigger, and since I haven't looked carefully at a bike with a 5 gal tank, I am interested to know what's involved.
 

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105miles or 170kms and im dead in the water. If i drive like miss daisy. there is a few things you can do to get rid of the annoying empty fuel light, I used concentrated fuel injector fluid in a full tank. Fixed my issue, but you can pull the tank guts and clean up the resistor strip. I still even though my gauge works for now run on the trip odo....
 

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How much was the 5 gal tank? Also, do you know if it will "fit" in the same space as the original tank without altering the bike? Doesn't sound like a complicated mod. Obviously it is bigger, and since I haven't looked carefully at a bike with a 5 gal tank, I am interested to know what's involved.
there was a group buy in the classifieds for the RicksTank but its over now maybe we can get another one fired up because that+ lowering springs are on my to do list for the winter.
 

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K.I.A. '07 AW
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10,908 Posts
I have an 03 VRSCA with the common fuel gauge problem (doesnt read correctly) and still trying to determine how far can I go before empty... It has the 3.7 tank so I never try to go beyond 110 miles.

Anyone have better experiences or more accurate to empty with the 3.7?
there's a quasi easy fix for your fuel gauge on the '02 through '05.
 

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Blowin' Smoke
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2,647 Posts
The UE "Trick" tank sells for $400, and doesn't intrude into the space occupied by the rear tire.
 

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Yea be lookin for gas around 100 miles on trip odometer. I sure do. The ole guage issue is far too common among us v rodders. To me though I still wouldnt complain too much cuz the reality is Im ridin the bike that satisfies me. ha. Gotta love the v rods. ha. Although my last v rod 03 gas guage always worked very good. My 02 has all the gas gauge issues. Oh well. Wish there was a logical quick fix but I am sceptical due to all I have read.
 

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FOO
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19 Posts
If you top off the tank and write down the milage and the gallons
every time, like I do, it is easy to know your mpg with high accuracy.

I get min=35.69, max=41.58, mean=38.13

Code:
# download python3.1 to run this program

data = (
# start = 1219
#09 12 1226   7 miles. Initial fill: 2.13 gallons. Poolesville
#mo dy fill  mi          gallons        mpg        xbar  light comes on at 80
"09 13 1312  86 miles on 2.18 gallons = 39.45 mpg.       83  Shepherdstown", 
"09 13 1396  84 miles on 2.18 gallons = 38.53 mpg. 38.99 83  Leesburg", 
"09 15 1475  79 miles on 2.20 gallons = 35.91 mpg. 37.96 73  Poolesville",
"09 15 1531  56 miles on 1.45 gallons = 38.62 mpg. 38.13 --  FtRoyal",
"09 16 1601  70 miles on 1.96 gallons = 35.71 mpg. 37.64 --  Luray",
"09 16 1696  95 miles on 2.58 gallons = 36.82 mpg. 37.51 78  Staunton",
"09 16 1797 101 miles on 2.59 gallons = 39.00 mpg. 37.72 --  Bedford",
#"09 17 1892 95 miles on 2.14 gallons = xx.yy mpg. ----- 80  Roanoke", # not full
#"09 18 1978 86 miles on 2.66 gallons = 32.33 mpg.       --  Lynchburg",
#combined::
"09 18 1978 181 miles on 4.80 gallons = 37.71 mpg. 37.72 --  Roanoke/Lynchburg",
"09 18 2060  82 miles on 2.12 gallons = 38.68 mpg. 37.83 81  Charville",
"09 18 2135  75 miles on 1.90 gallons = 39.47 mpg. 37.99 --  Big Meadows",
"09 18 2261 126 miles on 3.03 gallons = 41.58 mpg. 38.32 --  Frederick", # 2282 - 1472 = 810 mile trip!
"09 23 2362 101 miles on 2.83 gallons = 35.69 mpg. 38.10 80  Pooville",
"09 24 2452  90 miles on 2.34 gallons = 38.46 mpg. 38.13 85  Fredneck",

# copy this line and fill in the x"s for every fillup. Remove the comment character "#"
#"09 24 25xx xxx miles on 2.x gallons = xx mpg.",

) 

import re
pat = "(\d\d)\s(\d\d)\s(\d+)\s+(\d+)\smiles on\s(\d\.\d\d).{11}(\d\d\.\d\d) mpg"
acc1 = 0
count = 1
minmpg = 99
maxmpg = 0
prev_fillup = 1226  # toss my data and put your initial milage here
for line in data:
    if 0: print("linenumber = %d" % count)
    mo = re.search(pat, line)
    month = int(mo.group(1))
    day = int(mo.group(2))
    fillup = int(mo.group(3))
    miles = int(mo.group(4))
    gallons = float(mo.group(5))
    mpg = float(mo.group(6))
    assert miles == fillup - prev_fillup
    assert mpg == round(miles / gallons, 2)
    if mpg < minmpg: minmpg = mpg
    if mpg > maxmpg: maxmpg = mpg
    acc1 += mpg
    count += 1
    prev_fillup = fillup
print("min=%2.2f, max=%2.2f, mean=%2.2f" % (minmpg, maxmpg, acc1/len(data)))
 

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For those of you with the 5 gallon tank, how many miles do you normally get on a tank? At about 140 miles I'm wanting a gas station. And I definitely wouldn't want to push it past 150 miles... Thats riding hard though... Just doesn't seem like I'm getting good enough gas mileage.
 

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'00 107" FXD, '07 AW
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1,232 Posts
It is good to be conservative on a motorcycle as you're not really working with big tanks .. if you have a 3.7 gallon tank start looking for a gas station at around 105 miles, if you have a 5 gallon tank start looking for gas at around 140 miles. This should pretty much gaurentee you'll never run out of gas.
 

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K.I.A. '07 AW
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10,908 Posts
5gal tank and I try to always refuel at 140-ish miles. Freeway I pull up to 48mpg. On average with mixed riding I seldom dip below 35mpg
 

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The UE "Trick" tank sells for $400, and doesn't intrude into the space occupied by the rear tire.
can you pass me the website or whatever for the vendor of these? thanks, and will this tank rub if your running the 240, and lowered?
 

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'00 107" FXD, '07 AW
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1,232 Posts
5gal tank and I try to always refuel at 140-ish miles. Freeway I pull up to 48mpg. On average with mixed riding I seldom dip below 35mpg
I tend to get between 30 and 35 mpg pretty no matter how I ride; in town or out. Since I live in a rural-ish area I've never gone through an entire tank of gas just 'around town'.
 
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