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11-03-2012, 02:10 AM
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#1 (permalink)
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IronButt
Join Date: Oct 2012
Location: Oregon
Posts: 223
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Fork Oil Recommendations
1985 FXR
Did a bunch of searching but haven't found enough answers. I like pretty stiff front ends. I really dislike fork dive and all that. I am thinking some 15 weight is about right. I also need to know how much. This will be a brand new 35mm front end with fork tubes about 25 3/8 (2" over from MOST 23" FXR's). My manual says 85 FXRS's take 5 Fl oz and FXRT's take 7 1/4. Well mine has the 2" over forks, dual disk and all of that jazz. How much and what weight do you recommend? Any brand favorites? I usually run Redline in all of my bikes.
I should mention I am running progressive springs with 2" spacers.
Thank you!
__________________
1972 Superglide FX: Rebuilt, Super E, Drag pipes (FOR SALE PM ME)
2005 Sportster 1200: Thunderheader, SE ICM, SE carb upgrades, pretty stuff
1985 FXRS-SP: (looks VERY different than the pic. More black now) Dyna 2000 ICM, Twin Tec II Single Fire, Mikuni 42mm, S&S intake, Progressive springs, need money for Thunderheader and mid-controls! Have lot's to trade and $ if you have one for my bike!
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11-03-2012, 05:27 AM
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#2 (permalink)
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FNG :)
Join Date: Sep 2012
Location: canada
Posts: 26
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I have a 2006 softail , changed the fork oil last year and used 15 w .oil .worked fine all summer two up.
Sent from my GT-I9100M using Motorcycle.com Free App
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11-03-2012, 05:27 AM
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#3 (permalink)
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I'm Your Huckleberry
Join Date: May 2006
Location: U.S.S.A.
Posts: 2,033
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15 w will be stiff for sure... Quantity should be in the install guide I'd think.
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11-03-2012, 11:08 AM
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#4 (permalink)
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IronButt
Join Date: Mar 2011
Location: Adena, Oh
Posts: 378
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Check the progressive site.
Can't remember the measurement, but you colapse the fork tube and measure from the top of the oil to the top of the fork tube, progressive has it.....
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11-04-2012, 01:39 AM
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#5 (permalink)
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IronButt
Join Date: Oct 2012
Location: Oregon
Posts: 223
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Will have to look into it. Never rebuilt forks and don't want too put too much or too little.
Don't see much on the progressive site.
Looks like about 7 oz, but my forks are the 25 3/8. Maybe just put in 7 and see how they feel.
__________________
1972 Superglide FX: Rebuilt, Super E, Drag pipes (FOR SALE PM ME)
2005 Sportster 1200: Thunderheader, SE ICM, SE carb upgrades, pretty stuff
1985 FXRS-SP: (looks VERY different than the pic. More black now) Dyna 2000 ICM, Twin Tec II Single Fire, Mikuni 42mm, S&S intake, Progressive springs, need money for Thunderheader and mid-controls! Have lot's to trade and $ if you have one for my bike!
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11-04-2012, 08:44 PM
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#6 (permalink)
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IronButt
Join Date: Mar 2011
Location: Adena, Oh
Posts: 378
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5 inches keep coming to mind for some reason, but I'll have to check from some of my paper work.
Sorry for not much help but I measure out, then put that back in.
I have to look it up any how due to I have a raked triple tree/extended fork thing going on this winter, so I need to find out too.
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11-04-2012, 09:15 PM
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#7 (permalink)
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IronButt
Join Date: Nov 2004
Location: Pacific Northwest
Posts: 533
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Quote:
Originally Posted by Krowbar
1985 FXR
Did a bunch of searching but haven't found enough answers. I like pretty stiff front ends. I really dislike fork dive and all that. I am thinking some 15 weight is about right. I also need to know how much. This will be a brand new 35mm front end with fork tubes about 25 3/8 (2" over from MOST 23" FXR's). My manual says 85 FXRS's take 5 Fl oz and FXRT's take 7 1/4. Well mine has the 2" over forks, dual disk and all of that jazz. How much and what weight do you recommend? Any brand favorites? I usually run Redline in all of my bikes.
I should mention I am running progressive springs with 2" spacers.
Thank you!
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Start with what Progressive recommends and work from their.
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"Our lives begin to end the day we become silent about things that matter"
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11-05-2012, 01:05 PM
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#8 (permalink)
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Seasoned Rider
Join Date: Jun 2008
Location: WPB,FLA
Posts: 97
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youtube has vids that will help............
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1994 FXRP SE Heads, 42 Mikuni, EV46Cam,
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Lockhart oilcooler
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11-06-2012, 11:11 AM
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#9 (permalink)
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IronButt
Join Date: Sep 2008
Location: Fullerton, CA for now
Posts: 971
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cartridge or valve internals and 10 to 15W Bel-Ray.
Pretty much impossible to kill dive with stock spring config in my experience.
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11-06-2012, 12:14 PM
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#10 (permalink)
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IronButt
Join Date: Oct 2012
Location: Oregon
Posts: 223
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Picked up some Bel Ray 15W. That's all that was at the local shop. I guess I'm going to put in about 7 ounces, test ride it and then pour 1/4 ounce in at a time from there.
__________________
1972 Superglide FX: Rebuilt, Super E, Drag pipes (FOR SALE PM ME)
2005 Sportster 1200: Thunderheader, SE ICM, SE carb upgrades, pretty stuff
1985 FXRS-SP: (looks VERY different than the pic. More black now) Dyna 2000 ICM, Twin Tec II Single Fire, Mikuni 42mm, S&S intake, Progressive springs, need money for Thunderheader and mid-controls! Have lot's to trade and $ if you have one for my bike!
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