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post #1 of 12 Old 02-02-2012, 10:25 PM Thread Starter
 
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Question grizzly 700 fuel tank mod need advice

Somone on the trail showed me his grizz 700 he removed the white ring inside the gas tank he said it creates a big air bubble. .He told me i would get app half a gallon more gas. HE told me to take a screw driver and needle nose to get out. He says thats the first thing he does when he gets a bike. I did see that gone from his bike . MY question is what is that peice? the factory must put them there for a reason .This guys bike ran great should i do it to my grizz? Hopefully we are on to a nice easy mod here for cheap . please help. thanks guys
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post #2 of 12 Old 02-02-2012, 11:43 PM
 
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You can get a little more gas in it, but just what are you looking for?

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post #3 of 12 Old 02-02-2012, 11:46 PM
 
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Id say that is there to create an air lock so that u can't fill the tank too much. As when the gas expands it needs somewhere to go. So I wouldn't pull it out.

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post #4 of 12 Old 02-02-2012, 11:57 PM
 
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I hate to find out the hard way that it's important!

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post #5 of 12 Old 02-03-2012, 12:52 PM
 
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I'd suspect its there to allow for some fuel expansion, or to allow an air pocket to compensate for vapour pressures inside the tank.
If you took it out you'd never want to fill the tank right to the top anyway, or it would be spitting out anyway.
So not much to gain. Yamaha doesn't usually get in the habit of putting extra parts on the quad for no reason.
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post #6 of 12 Old 02-03-2012, 01:23 PM
 
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It's a safety feature and should be left as is from the factory. You don't want gas spilling out onto a hot engine or exhaust.
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post #7 of 12 Old 02-03-2012, 09:16 PM
 
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That was one of the first Mods i did on mine over 12,000 miles ago for the extra range, and have had no problems from doing it....

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post #8 of 12 Old 02-03-2012, 09:47 PM
 
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right out on the man bag at that!!
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post #9 of 12 Old 02-03-2012, 10:00 PM
 
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Quote
#6
Today, 12:23 PM It's a safety feature and should be left as is from the factory. You don't want gas spilling out onto a hot engine or exhaust.

x2 it's there so that you won't over fill your tank (A Safety Feature), your suppose to stop when the gas reaches the lower rim.

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post #10 of 12 Old 02-03-2012, 11:14 PM
 
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When it comes to safety, modding a safety device out of the quad, riding double or not wearing a helmet etc., I don't care who's done it and for how long... just because someone else has been lucky doesn't mean I'm going to be.

I can't tell you how many times I've heard someone say "if only I had...(fill in the blank) when in the emergency room. Some arrived and weren't able to say anything!

Besides that, "Murphy" get's everywhere I'm going ahead of me and is always there waiting!

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Last edited by Grumpy; 02-03-2012 at 11:14 PM.
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post #11 of 12 Old 03-04-2012, 07:47 PM
 
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Murphy has a place setting at my dinner table now, kind of used to him being around!

With that being said, I am going to go look in my tank and investigate this myself, lol

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post #12 of 12 Old 03-04-2012, 07:51 PM
 
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Well, after looking at my 660, once removed you would be hard pressed to get more than an extra cup of fuel in the tank. I personally don't see enough gain to remove the tanks ability to deal with fuel expansion.

I am leaving mine alone.

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