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grizzly 700 fuel tank mod need advice

This is a discussion on grizzly 700 fuel tank mod need advice within the Grizzly Tech Tips forums, part of the Grizzly Forums category; 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 ...


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#1
02-02-2012, 09:25 PM
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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#2
02-02-2012, 10:43 PM
You can get a little more gas in it, but just what are you looking for?
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#3
02-02-2012, 10:46 PM
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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#4
02-02-2012, 10:57 PM
I hate to find out the hard way that it's important!
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#5
02-03-2012, 11:52 AM
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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#6
02-03-2012, 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.
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#7
02-03-2012, 08:16 PM
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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02-03-2012, 08:47 PM
right out on the man bag at that!!
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#9
02-03-2012, 09:00 PM
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#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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#10
02-03-2012, 10:14 PM
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 doulos; 02-03-2012 at 10:14 PM..
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#11
03-04-2012, 06:47 PM
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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#12
03-04-2012, 06:51 PM
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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