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Buell Forum » Old School Buell » Archive through July 23, 2014 » DDFI Fuel Pressure Release « Previous Next »

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Bikerrides
Posted on Sunday, June 22, 2014 - 12:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Replacing in-line fuel filter on my 99 S3T and need to release the fuel pressure first. I have the service manual, but was wondering if anyone has a video on how to do it or where one may be posted online.

Never done this before and wanted to see it done before I start on it. Probs stupid easy, but...

Thanks!
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Jramsey
Posted on Sunday, June 22, 2014 - 01:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The 90 degree fuel line fitting that comes out of the tank has a Schrader valve (used to check fuel pressure)in the end of it.

Remove the cap and push the valve core with a wire,small rod to bleed pressure.Helps to have a rag to catch the gas.

Here's a pic of the pump, the valve is under the cap.



(Message edited by Jramsey on June 22, 2014)
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Bikerrides
Posted on Sunday, June 22, 2014 - 07:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanx James. How much fuel will come out? Enough to saturate a rag or just a small amount?
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Jramsey
Posted on Sunday, June 22, 2014 - 07:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Shop rag will catch what comes out of the valve.
I disconnect the the hose on the filters outlet side (front)then hold the filter over a pan until its drained then change it out.
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5liter
Posted on Sunday, June 22, 2014 - 08:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You can also unplug the pump wire harness and start the bike and let it die. That's how I do it. You still get some fuel drip when you undo the fuel line from the filter.
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