Question about 2006 Harley Davidson XL 1200 L Sporster Low
I have a leak in my front forks
Posted by Anonymous on
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Cycles Capacities and Fluid Requirements Fork Filling Quantities
Posted on Jun 24, 2015
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Posted on Jan 02, 2017
SOURCE: Forks rebuilt, oil leaks.
Just a thought.Aren't late model sportster forks,on the 1200"s,49mm?Check that manual to see if the procedure is the same.If not then guess which one is right.Don't know bout late models but the early mm lower sliders had a fiber washer that could get damaged if the last assembly bolt,allen head,wasn't put in just right.Good luck.
Posted on Mar 28, 2010
There is a seal in the "slider" of the front fork, the part that moves up and down. I haven't had a chance to work on the later forks but the earlier 41mm forks are quite simple.
Start by taking the drain plug out of the bottom of the slider and work the slider up and down to blow out all the oil. Then, remove the front wheel. Remove the top cap from the upper tube and loosen the top plug. Now, with the top plug loose, loosen the pinch bolts and slide the fork out of the triple trees. Remove the top plug carefully, There is a BIG spring in there. Once you have the plug out lift the spring out and set it asside. Notice the tapered end of the spring. It goes back in first. Turn fork tube upside down and allow as much oil to drain out as possible.
Now, look at the bottom of the slider where the axle goes. Up in a hole there is an allen head bolt. it is designed to use a special wrench but a regular 8mm allen key in GOOD shape will take the bolt out. It's best to use an air wrench to do this with. With the bolt out, the slider should slide right off.
Down inside the top part of the slider is where the seal is. Theres a snap ring, a spacer, and a seal. Replace the seal and put a little oil on it to assist reassembly. Put everything thing back together and add the appropiate about of oil. Since your forks are much larger than mine, I have no specs as to the quantity. The owners manual should tell you or a call to a local Harley dealer. Sorry but thats a good as I can do. There is a "wet" measurement and a "dry" measurement. Since you disassembled your fork, use the "dry" quantity of oil
Posted on Apr 19, 2010
The headline of your post seems to have it correct, you have a fork seal leaking. To replace the seal, you must remove the fork slider, the lower part of the fork tube to replace the seal and then refill the fork with the proper amount of the proper oil. Here's how you do it on a conventional front fork. This is not for an "inverted fork" where the top part is larger than the bottom.
Remove the front wheel, the caliper if it's on this side or you decide to do both sides. Loosen the pinch bolt on the back side of the lower triple tree. Remove the large nut on the top side of the upper triple tree. Caution: there is a large spring under the nut. Usually, if the bike is completely off the ground, the sping is almost fully extended but it will still have some pressure on it. Remove the spring and work the fork tube out of the triple trees. Turn the thing upside down and pour the oil out of it. Notice in the very bottom of the lower slider where the axle goes through, there is an 8mm hex head bolt. Using a brand new hex key, remove this bolt. A hex key socket on an air wrench helps to remove this bolt. It takes a "piloted key" but you can get it out with a regular one as long as it new and not rounded. Once the bolt is out, pull the top tube out of the lower tube. You'll see the oil seal in the top of the lower slider. Pull the seal out and replace it with a new one. Reassemble the entire assembly and install back into the triple trees. Add the proper amount of the proper weight oil. This is what is commonly called a "dry" fill since you took everything off and wiped it down. Then insert the spring tapered end first and put the large nut back on the top.
Then do the other side if you wish. Only do one side at the time. The remaining tube that is put together helps hold the tube you're working on extended.
Posted on Jul 21, 2010
That depends on where it's leaking. If it's leaking down at the axle, You can lift the bike off the ground, remove the front wheel. There's a bolt in the very bottom of the tube. Take the bolt out and slide the "slider" off the upper tube. While you have it off, replace the seal at the top of the "slider". This will fix any leak at the top of the slider. Clean the lower slider with clean mineral spirits and allow it to dry. Then, put a little bit of oil on the seal and a dab of clear RTV in the area where the copper washer goes and slide the slider back up on the tube. Put the bolt in and tighten it up. Replace the front wheel. Now, add the appropiate amount of fork oil for a "dry" refill. If you call the dealer, they should tell you how much oil goes in there. My manuals are not up to date for your model. Mine only shows for 1994 and Harley may have changed the fork tubes since then. Remember the higher viscosity of the oil, the stiffer the front suspension. The dealer will also tell you what oil came in the front forks from the factory.
Posted on Aug 19, 2010
SOURCE: I'm looking for a blow
Contact me directly at firstname.lastname@example.org and I'll scan the pages from an OEM parts book for you. BikeBandit.com has an exploded view drawing but they don't use H-D part numbers. Still, I've had good luck using that site for Japanese parts that I've needed over the years. Make sure you tell me what year model you Sporty is and remind me of what you want. I get lots of request like this and I can't remember them all.
Posted on Jan 02, 2011
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