1800 Tank Vacuum Line Question - Page 2 - VTXOA
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post #11 of 19 (permalink) Old 05-03-2019, 04:33 PM Thread Starter
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Actually that part is real similar upon further hand cramping (from holding & moving mini snake light & mirror) inspection. LoL
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post #12 of 19 (permalink) Old 05-03-2019, 04:54 PM
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1st gen has fuel pump and fuel level sensor
With a big access hole.

2nd gen has fuel level sensor.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 192,235 VTX miles
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post #13 of 19 (permalink) Old 05-03-2019, 05:24 PM Thread Starter
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Man I wish I had an inspection camera to take a picture of this. I swear man, I looked at this thing a hundred times when I was wire brushing it while an 8 X 12 hole in the side of tank. Looking at it now still looks like a complete box 3/8" thick with a big 2" tall dome right on top of where that line comes in.
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post #14 of 19 (permalink) Old 05-03-2019, 05:26 PM Thread Starter
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By the way my line comes across on back side of what ever that baffle/box is, between lid and it.
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post #15 of 19 (permalink) Old 05-03-2019, 05:32 PM Thread Starter
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What is that piece that they've cut off? It's it a vertical brace or maybe bottom of that baffle?
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post #16 of 19 (permalink) Old 05-04-2019, 02:10 AM
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Quote:
Originally Posted by Mark Quesenberry View Post
Oh yeah! I just did it with the KBS kit. Didn't think about blowing thru it while it was still wet. Wasn't sure tho if it had a check valve/diaphragm that only opened when a certain pressure is reached our it is just a straight pass-thru.
Strait pass-through. A metal "box" at the end of the vent line. Prevent fuel from splashing out on vent line at every movement of the bike. You need to blow air through before sealer dries. If nothing helps, clean the tank inside with MEK or Acetone (use at least 1 gal. or more) and seal it again.
BTW, sealing the tank 100% is almost impossible due to its internal shape, and construction (unless you put a huge amount of sealer like 3-4 gal. in the tank and of course drain the most of it at the end of the process).


VTX 1800/280

Last edited by ervin260; 05-04-2019 at 02:13 AM.
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post #17 of 19 (permalink) Old 05-04-2019, 04:36 PM Thread Starter
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Does air flow from vacuum line to box or from box to line? Any idea where opening is on box?
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post #18 of 19 (permalink) Old 05-04-2019, 07:36 PM Thread Starter
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Stupid question if it's a true straight pass thru with no anti drain valve. Let me rephrase, is system there vent tank pressure or let air in so fuel will exit properly to pump?
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post #19 of 19 (permalink) Old 05-04-2019, 07:42 PM
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Quote:
Originally Posted by Mark Quesenberry View Post
Stupid question if it's a true straight pass thru with no anti drain valve. Let me rephrase, is system there vent tank pressure or let air in so fuel will exit properly to pump?
Vent air in or fumes/vapor out.
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2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 192,235 VTX miles
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