How big is my tank?
Tourer
Joined: May 2016
Posts: 442
Likes: 30
From: Florida
When I google specs for 1992 FLSTC, it says 3.4 gals. Could that be 3.4 primary and 0.8 reserve equals 4.2 total? Or might the older FLSTCs have smaller tanks?
If 3.4 is primary, then I wonder if when I hit reserve and filled with 2.4 either; 1) I did not hit reserve and stalled for another reason, 2) I put in 3.4 and thought I put in 2.4, 3) There is something wrong with my tank.....
I think I will figure out a way to carry an extra gallon with me so that I can test my limits.
If 3.4 is primary, then I wonder if when I hit reserve and filled with 2.4 either; 1) I did not hit reserve and stalled for another reason, 2) I put in 3.4 and thought I put in 2.4, 3) There is something wrong with my tank.....
I think I will figure out a way to carry an extra gallon with me so that I can test my limits.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
When I google specs for 1992 FLSTC, it says 3.4 gals. Could that be 3.4 primary and 0.8 reserve equals 4.2 total? Or might the older FLSTCs have smaller tanks?
If 3.4 is primary, then I wonder if when I hit reserve and filled with 2.4 either; 1) I did not hit reserve and stalled for another reason, 2) I put in 3.4 and thought I put in 2.4, 3) There is something wrong with my tank.....
I think I will figure out a way to carry an extra gallon with me so that I can test my limits.
If 3.4 is primary, then I wonder if when I hit reserve and filled with 2.4 either; 1) I did not hit reserve and stalled for another reason, 2) I put in 3.4 and thought I put in 2.4, 3) There is something wrong with my tank.....
I think I will figure out a way to carry an extra gallon with me so that I can test my limits.
One way you can check your reserve is get 2 gas cans.
Run a fuel line from your petcock to the gas cans (one at a time)
Drain your tanks in the run position into one gas can and then move the hose to the other can and turn switch to the reserve position.
That will tell you how much reserve you have.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
If you only fill up one side you ain't gonna get far!!!!
Road Captain
Joined: Apr 2015
Posts: 636
Likes: 35
From: NorCal
I'd believe that the speck is 3.4 with .8 reserve equaling 4.2 total.
One way you can check your reserve is get 2 gas cans.
Run a fuel line from your petcock to the gas cans (one at a time)
Drain your tanks in the run position into one gas can and then move the hose to the other can and turn switch to the reserve position.
That will tell you how much reserve you have.
One way you can check your reserve is get 2 gas cans.
Run a fuel line from your petcock to the gas cans (one at a time)
Drain your tanks in the run position into one gas can and then move the hose to the other can and turn switch to the reserve position.
That will tell you how much reserve you have.
Tourer
Joined: May 2016
Posts: 442
Likes: 30
From: Florida
Interesting. I thought the two sides were connected so that if you fill one side, you fill both.
That would definitely explain why the tank does not seem as big to me as it should. hahahaha
Elite HDF Member
Joined: Oct 2005
Posts: 3,872
Likes: 83
From: Canton, Michigan
Tourer
Joined: May 2016
Posts: 442
Likes: 30
From: Florida
Just filled up using the correct method. Left side first then right side. I put in 2.3 gallons after having gone 31 miles since last fill up using old method. If I estimate mileage at 40 mpg then it should have taken about 0.8 gals. Therefore, I must have put about 1.5 gals extra in by using the correct method. And since I put in 2.4 when it went to empty using the incorrect method, I am estimating that primary is 3.5 to 3.9, which makes sense.
Going to run it to reserve again and see how much it takes. That will probably be close enough for my purposes. I might try the precise method recommended above some time. But for now, I am going to try the run it to reserve method and see how much I put in.
Thanks for the help.
Going to run it to reserve again and see how much it takes. That will probably be close enough for my purposes. I might try the precise method recommended above some time. But for now, I am going to try the run it to reserve method and see how much I put in.
Thanks for the help.
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Tourer
Joined: May 2016
Posts: 442
Likes: 30
From: Florida
You may not need to be crazy to do it, but I would. I am good for no more than about a quarter iron butt... hahahaha