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  #1 (permalink)  
Old 08-10-2015, 01:07 PM
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Pop up gas cap?

So the tank I have has a pop up gas cap and I don't really care for it.the question I have will a regular style gas cap work?Has any one ever switched them out and if so what cap did you use?Or is the only option to replace filler neck?thanks
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Old 08-10-2015, 03:18 PM
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Nice post, I have been thinking about this same post...My pop up is is leaking vapor and is starting to eat my paint from around the cap......I still have not tried machining the grove and putting an o ring on it as suggested in a previous post , but was wondering the same about a regular cap..
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Old 08-10-2015, 04:35 PM
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Those vented gas caps can really do some paint damage. I used one for about 5 minutes on my sled. I could see a small problem starting around the filler neck, lucky I had a vented gas tank, ran the line and took care of the problem.

There has been lots of info talked about on this forum.

Do you have other venting options for your gas tank? If you can find one that fits I don't see any reason you can't use it..other then venting issues.
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Old 08-10-2015, 05:51 PM
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I have a home made gas gauge on my ride......it consists of a T off of the fuel line and runs up to the front of my tank....it works great..I can see the gas level from a birds eye view......

After I go for a ride and park...after a few minutes I get gas squirting out of the gas gauge...I really haven't figured out where the pressure is coming from..it even does it if the gas cap is off.

The only thing I can figure is that it has to be coming from within the valve covers.since the crankcase is vented.....Umbrella valves must be closed...obviously this is not a vent option since the vent would have to be on the top of the tank..so ...no I don't think I have any vent options..... since I am loosing paint, I am wondering if I can go with a different cap or the grove in the existing cap and the o ring..
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Old 08-10-2015, 11:01 PM
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Yea my cap is vented as well and tank isn't.my thought is if I could find a cap that fit I would get one that was vented as well.I know they make caps with same threads,I'm think newer style Harley caps but I'm thinking the pop up cap filler neck is deeper which wouldn't allow a regular cap to screw in without it hitting.I guess I'll just have to see if I can find some elcheapos with same threads and see what happens.Thought I'd see if any one had done it first.,............another question is...I have a 32 amp compufire charging system and wondering if it matters which way the plugs from the regulator goes on the plug from the stator plug coming from engine case?the instructions didn't really say and I know every bike I've had or saw had it turned with wires pointing toward the oil filter.on this bike however it doesn't really fit good in that direction.
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Old 08-11-2015, 07:16 AM
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try speed dealer customs for the gas cap
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Old 08-11-2015, 04:07 PM
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Quote:
Originally Posted by chopperkev View Post
another question is...I have a 32 amp compufire charging system and wondering if it matters which way the plugs from the regulator goes on the plug from the stator plug coming from engine case?the instructions didn't really say and I know every bike I've had or saw had it turned with wires pointing toward the oil filter.on this bike however it doesn't really fit good in that direction.
I don't think it matters but you can put a meter on the battery after you start it and check voltage.
I really need to get back into this shit. I used to have such a good time assembling stuff and reading this forum.
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Old 08-12-2015, 04:01 AM
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Cool thanks kidchop I'll check them out,..........thanks gofish,yea I know what you mean I've kinda been off here a while and the bike took a back seat but now on final assembly and hopefully will be done soon.in the middle of wiring now.
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