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How much fork oil?

Sportster Models

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Old Sep 16th, 2009, 06:15 PM     #1
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How much fork oil?

Bike is a 2004 XL883C
How many oz. of fork oil in each leg for a wet change?
2004 manual says 9 oz.
2006 manual says 11.6 oz.
Was wondering if the 04 manual has a mistake?
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Old Sep 16th, 2009, 06:46 PM     #2
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Re: How much fork oil?

When I had my '07 Sportster I got conflicting info also, therefore since I did not have a leak in the forks, I measured what came out & put back the same.
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Old Sep 16th, 2009, 09:28 PM     #3
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Re: How much fork oil?

My 07 FLHR manual calls the oil level to be set at a specific height from the top of the fork tube. You don't just put X oz. of oil in.

There are many out there that will tell you it doesn't matter, just put in 10 oz. and call it a day. For me it isn't a big deal to do it by the book.
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Old Sep 21st, 2009, 05:46 PM     #4
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Re: How much fork oil?

Thank for the replies.
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Old Sep 25th, 2009, 07:16 PM     #5
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Re: How much fork oil?

to an extent as long as theres enough too much wont hurt
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Old Sep 25th, 2009, 07:19 PM     #6
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Re: How much fork oil?

Quote: Originally Posted by fwcole View Post
to an extent as long as theres enough too much wont hurt
Too much fork oil could blow the seals. It also would make the front end very stiff too.
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Old Sep 25th, 2009, 08:19 PM     #7
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Re: How much fork oil?

Easiest thing is to drain the fluid out of each fork and measure...as Glider says adding two much CAN blow seals and make fork too stiff, but 1 or 2oz over what you take out would probably not be overfilling. Measure them separately...you may be surprised to find out they may not be the same, but should be pretty close to 9-10oz...BTW I put in 9 oz in and used 7.5W Bel Ray and it was fine.
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Old Sep 25th, 2009, 08:23 PM     #8
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Re: How much fork oil?

You would be surprised at what just 1/2 to 1 oz over specs does to a fork.
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