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  1. #11  
    C-Moto Guru david3921's Avatar
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    Quote Originally Posted by ChinaV View Post
    David,

    Great work and thanks for sharing all the details with us. What weight fork oil did you use?

    Cheers!
    ChinaV
    Thanks China,
    I did a home made viscosity test between 10w fork oil and some ATF I had left over from a fluid change. The ATF was thicker so I put that in. I haven't tried it out yet but if I need more dampening, I'll go with 20w like kingmarty45 did.
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  2. #12  
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    Quote Originally Posted by david3921 View Post
    Reassembly. It's pretty much the reverse but with some important notes.

    At the bottom of forks there are flat spots that line up with the flats on the cartrage. You can barly see them in the picture below. They are on the lower right on my right hand fork. These flats keep the cartrage from turning when tighting the bolt at the bottom of the forks. Mark the location of the cartrage flats on the top of the cartrage where the rod meets the main body. I used a paint pen. You want to be able to see from the top the location of the flats so that you can turn the cartrage so that it drops into the correct position in the fork. With the right lighting you can see the flats at the bottom of the fork and put the cartrage close when reinstalling. You can turn the cartrage by the rod until it catches in the flat.

    Replace the bolt. As a note, the bolt has a copper crush washer. I have a set of washers from Harbor Freight but didn't have the correct size so I flipped them and reused them. You have to work them off with a screw driver a bit at a time as they are a tight fit.

    After tightening the bolt use the measurement taken before to ensure the cartrage is seated correctly. If it's too long, loosen the bolt and rotate the cartrage until you get it right.

    The cartrage rod will tend to slid down until it gets oil back in it. Don't worry about letting it go as it can be retreived with needle nose pliers.

    So here's the steps for reassembly;

    Cartrages in.
    Rotate to fit into flat.
    Bolts in.
    Measure with rod extended.
    Springs in.
    Oil in. Pour in 330ml into each slowly.
    Pump cartrage rods to get oil in and air out.
    Sleeve in (if fell off of pipe), pipe on.
    Push down pipe while holding cartrage rod up, put on clip.
    End caps on. Rubber bushing first, then cap.
    Jack up bike, caps go down.
    Tighten caps. careful that the caps thread correctly.
    Tighten tree bolts.
    Replace brake hose bracket and fork protectors.

    I think that's it. Let me know if I missed anything.

    As a side note. As stated in the first post, I think it's possible to try different weights by doing the following;

    Take out the bottom bolt and drain the oil.
    Replace the bolt.
    Measure what comes out of each fork.
    Pop the top caps as decribed earlier and pour in the new weight based on what came out of each fork.

    This seems like a quick and dirty way to check for the correct oil weight. Once determined, the whole procedure described above can be done if desired.
    Hello David ,could I ask you one question,when you have the cartrage and rod out of the fork, can the fork be part so to replace the seals? Phil
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  3. #13  
    C-Moto Guru david3921's Avatar
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    Phil,
    The forks have to be out of the bike to replace the seals as the two tubes need to be separated by pulling the lower tube (silver) out of the upper (gold).
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  4. #14  
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    Quote Originally Posted by david3921 View Post
    Phil,
    The forks have to be out of the bike to replace the seals as the two tubes need to be separated by pulling the lower tube (silver) out of the upper (gold).
    Sorry david,One more question,,, Can the two tubes be separated after you have the rod and cartrigde out no more rods nuts flat side or anything.The reason I ask is I,m going to have to do this work on a city street and like you have not been able to find any usefull info.Actually the oil stopped dripping weeks ago,I have just got use to it,and ride acordingly.
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  5. #15  
    C-Moto Guru david3921's Avatar
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    Phil,
    If you are looking to replace the seals then you have to take the forks out of the bike. The manual found here details how to do it.

    http://www.mychinamoto.com/forums/showthread.php?t=353

    It's in Portuguese but it's pretty easy to figure out.
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  6. #16 Thanks 
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    David,Thanks for your help,the pictures in the manual are really helpfull,plus there is a portugese guy at work who is interested in bikes,he will not be needing change for the coffee machine for the next week or two.all the best Phil
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  7. #17 Re: Thanks 
    Senior C-Moto Guru barnone's Avatar
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    David,

    "Take out the bottom bolt and drain the oil.
    Replace the bolt.
    Measure what comes out of each fork.
    Pop the top caps as decribed earlier and pour in the new weight based on what came out of each fork."
    Are you talking about the allen head bolt at the bottom end of the fork?
    Thanks,
    Vince
    2015 Ural cT sidecar
    2014 Honda CB1100 Custom
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  8. #18 Re: Thanks 
    C-Moto Guru david3921's Avatar
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    Quote Originally Posted by barnone View Post
    David,

    "Take out the bottom bolt and drain the oil.
    Replace the bolt.
    Measure what comes out of each fork.
    Pop the top caps as decribed earlier and pour in the new weight based on what came out of each fork."
    Are you talking about the allen head bolt at the bottom end of the fork?
    Thanks,
    Yep, that's the one.
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  9. #19 Re: Thanks 
    Senior C-Moto Guru barnone's Avatar
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    David,

    Have you drained the fork oil by removing that bolt? If so how much oil came out compared to "I measured what I removed, and after adding in what was on the springs and what I spilled, it did look like is came out to the 330ml recommended."

    Thanks.
    Vince
    2015 Ural cT sidecar
    2014 Honda CB1100 Custom
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  10. #20 Re: Thanks 
    C-Moto Guru david3921's Avatar
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    Bar, I've done this twice now. Recently, I put in 20w to try to cut down the diving in the front end. It helps some but doesn't totally eliminate the problem. Both times I measured out 330 ml and poured it in. I've had no problems with this amount.
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