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Front Fork Seal Replacement

6.1K views 4 replies 3 participants last post by  Bat-1  
#1 ·
I recently took my bike in for a safety inspection here in Hawaii and failed due to my front forks leaking oil. The shop quoted me about $460 to fix the bike, I don't have that kind of extra cash at the moment so I am going to replace them myself. I am new to motorcycle maintenance, I do have expeience with cars and I work on planes for a living. I youtubed videos and the process of changing the fork seals seems pretty straight foward, I just have a couple of questions. First, for oil is it SS-47 or SS-8 I have seen both mentioned on here, and the service manual I got off of the forum (I believe it is the correct one) says SS-47. Does it matter which fork oil I use? Both are 10W. Second, is it necessary to remove the fork completley from the bike? I don't mind if I have to just wondering if it will save time or if its possible. Third, any videos I should watch after I am done to return the suspension back factory or how to adjust the suspension to my height/weight. Thank you for the help.
 
Discussion starter · #3 ·
Not going to start an oil argument, but here's more, much, much, more about fork oil than you ever wanted to know:

Fork oil weight has no universal standard so one company's 10w can actually be another's 7.5w. I've used various weights and brands and never really noticed a difference.

You will have to remove the forks to change the seals. Changing seals is not hard and the service manual will guide you through it step by step but it really helps if you have a fork spring compressor and a fork seal driver. Driver is worth the $40 or so bucks to assure you seat them properly without damaging them.

The price you got quoted is way high, at least for CONUS. If I bring them the shocks my local shop charges $62 per fork plus the seals and oil (which I also supply so I know what I'm getting).
Yea well everything in Hawaii is crazy expensive like that. I did not think of just removing the forks and bringing them in for the shop to finish the job. I will have to call and see what they would charge me for that then. Thanks for the idea and the info!