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Old 03-19-2014, 06:31 PM
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Question Fuel Tank Mounting Bolt

Anyone happen to know the size and thread pitch of the bolt that mounts the fuel tank to the frame (by the steering head)?

Mine seems to have gone missing after the ride Saturday; pulled the tank off so many times that I think I forgot to loctite it


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Old 03-19-2014, 09:56 PM
Rod Overstreet Rod Overstreet is offline
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Quote:
Originally Posted by liv2day View Post
Anyone happen to know the size and thread pitch of the bolt that mounts the fuel tank to the frame (by the steering head)?

Mine seems to have gone missing after the ride Saturday; pulled the tank off so many times that I think I forgot to loctite it
Should be a 6mm.
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Old 03-20-2014, 12:12 AM
Elvis74 Elvis74 is offline
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M6 is right, length about 25mm
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Old 03-20-2014, 01:31 AM
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Default tank bolt

Its 6mm as previously noted. 1.0 thread pitch. Make sure you have a shouldered washer that fits thru tank, so you don't cause a leaking fuel tank. Something that will tighten up, but not compress the tank.. That was the original leaking point on my first 11' tank.
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Old 03-20-2014, 10:37 AM
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I would consider that bolt optional.
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Old 03-20-2014, 11:29 AM
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Quote:
Originally Posted by adv rider View Post
Make sure you have a shouldered washer that fits thru tank, so you don't cause a leaking fuel tank. Something that will tighten up, but not compress the tank.. That was the original leaking point on my first 11' tank.
That's the reason the tank has been off so many times; have had two different new tanks shipped to me and neither fit, was going to just live with it, but the petcock wouldn't transfer either I've re-sealed the split by that mounting point 3 different times now and it still leaks - not to mention all the fuel that comes out through the threads of the cap (even with the S3 cap).

Anyway, thanks for the info on the size and pitch guys - much appreciated I think finding the washer will be the hardest part; that size bolt is in stock at the local Ace.
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Old 03-20-2014, 12:13 PM
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I would consider that bolt optional.
mine disappeared long ago...on 3 different bikes.
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Old 03-20-2014, 12:38 PM
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Default Fuel Tank Mounting Bolt

I use this one that I had on my CRF250X

It works great because it does not suck the gas tank down tight to the frame which does cause stress on the tank and then eventually leak.

I put a bit of Blue Loc-Tite and mine and never had any problems loosing it.

http://www.crfsonly.com/catalog/prod...oducts_id/3467

The red electrical tape is there to add just a bit more thickness to fit snug on the gas tank.

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Old 03-20-2014, 01:06 PM
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Quote:
Originally Posted by StuJohnson View Post

It works great because it does not suck the gas tank down tight to the frame which does cause stress on the tank and then eventually leak.
i use a regular bolt with a wide shoulder and place a fat plastic washer under the tank which is glued to the frame so it doesnt get lost.
this way the tank is held firmy. i think the plastic washer was part was from a car oil drain plug. you can use just about anything though
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Old 03-20-2014, 01:17 PM
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Quote:
Originally Posted by GasGasDreamer View Post
i use a regular bolt with a wide shoulder and place a fat plastic washer under the tank which is glued to the frame so it doesnt get lost.
this way the tank is held firmy. i think the plastic washer was part was from a car oil drain plug. you can use just about anything though
Thanks - That is a GREAT idea!!! Cheaper than my $14 bling bling bolt.... ;-)
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