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  #1  
Old 8th April 2020
Parker 1000 Parker 1000 is offline
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Default 1970-71 XL Fuel Tank ?

Is the 1971 Sportster small fuel tank exactly identical to the 1970 with the small overflow tube right up inside the filler neck?
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  #2  
Old 8th April 2020
The Doctor71 The Doctor71 is online now
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Quote:
Originally Posted by Parker 1000 View Post
Is the 1971 Sportster small fuel tank exactly identical to the 1970 with the small overflow tube right up inside the filler neck?
The small fuel tank p/n 61000-54C appears to be used in both 1970 & 1971 (and earlier) so the simple answer is "yes".

Regarding, the small overflow tube inside the filler neck..... yeah it looks like it might be an overflow tube. I get it. But it's really a vent tube for the Tillotson carburetor.

The hose running from the top of the Tillotson, to the nipple on the bottom right corner of the tank is how H-D chose to vent the Tillotson carb. At least that's how it's done on my '71 xlch.
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  #3  
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Thanks Doctor '71! So the original 1971 tank has the vent tube for the Tillotson Carburetor also?
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  #4  
Old 8th April 2020
The Doctor71 The Doctor71 is online now
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Quote:
Originally Posted by Parker 1000 View Post
So the original 1971 tank has the vent tube for the Tillotson Carburetor also?
Correct.
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  #5  
Old 8th April 2020
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Just to confirm...
I bought this tank new, from an H-D dealer, in January 1971.
It has the tube.



It also has a lot of sentimental value so it sits on a shelf as is.
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  #6  
Old 8th April 2020
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Thanks guys!
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  #7  
Old 8th April 2020
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1971 would have been the last year for the Tillotsen and the need for the tank vent.
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Old 9th April 2020
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Very interesting. I have an early '71 XLCH and the tank does not have a tube. When I stripped the tank prior to sealing and painting I noticed a date stamped on the bottom 12/70. It was a basket case sans a carburetor so perhaps the tube was removed by a previous owner.
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  #9  
Old 9th April 2020
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Almost right , my 1972 came with that tank but the bottom of the tank had a cap over it Bendix did not use any venting from the tank, Tillotson did
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