1984 VF 1000F mono shock alternatives.

Discussion in 'Mechanics Garage' started by CAP66, Nov 23, 2013.

  1. CAP66

    CAP66 New Member

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    I recently scored a rear mono shock off eBay for my VF1000F. I got it for under $40.00 and it came of from a 2002 Honda SC36 VTR1000R Super Hawk. I know the length will be short, more than likely but since I have access to a lathe and mill I don't mind modifying things to fit. You guy's I know have the answers and can let me know if I bought wrong or got a deal. The bike had around 10K and the Showa shock looks new, so any advice would help, thanks.
     
  2. CAP66

    CAP66 New Member

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    http://www.ebay.com/itm/151161464021?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

    this is what I got. I think once I machine the yolk attachment (make one) this will work out nicely. I wanted to get a mono from Jamie but cant afford the cost right now, trying to get out of debt. I foolishly bartered off the one he built for my VF bike, now I wish I had it.

    If this looks like a go, I will do a tutorial on making one work.
     
  3. vfrcapn

    vfrcapn Member

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    I tried a RC51 shock on my 1000R and the spring could barely hold the rear end up. I ended up getting a Penske off a GSXR750 and put in a new spring, almost doubling the spring rate. I had to fab an extension too. The F and R aren't too much different in weight, it's all in the linkage and geometry of the links.
     
  4. CAP66

    CAP66 New Member

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    Thanks for the info, it makes a lot of sense. I didn't consider the weight and should have. The VTR1000 is a very light bike by the looks of it, well compared to the old VF1000F which for its time probably was considered light for a 1000cc.
    I will give it a try and if it don't pan out, I will surely post the results and will be looking for a GSXR shock or a beefier spring. It just shipped today
     
  5. vfrcapn

    vfrcapn Member

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    If you need a new spring shop around, I don't think I paid more than $80..can't remember the brand off the top of my head, but it was somewhere around 1100 lbs rated.
     
  6. CAP66

    CAP66 New Member

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    Thanks again for the info, just knowing there are a lot of options helps tons, I couldn't afford $300 to $500 hundred dollars rite now for a shock assembly. Once I get the motor back in the frame and new tires on it, I can check and see if it will require a heavier spring.
    It may be a month or two before that happens.
     
  7. JamieDaugherty

    JamieDaugherty New Member

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    For sure the VTR shock won't work without a lot of modification. If you sent that shock to me I could do the conversion for under $300, maybe that would help? Let me know if there is anything else I can do to help!
     
  8. CAP66

    CAP66 New Member

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    Thanks Jamie for the offer, I may just take you up on it. I cant wait to get the VF done and back on the road and looking new. I don't make the big cash anymore since I left the field service work for Rep Corp, so any break in the cost of things works for me.
    I will be rebuilding the carbs in the next couple weeks, since removing them I found one of the plastic fuel/vent lines broken, so I am replacing them with the ones from V4 Market along with the oil mod they offer. The motor is clean inside and the valves are properly adjusted now, so getting the shock done will be the next step before putting the motor back in the frame. Thanks again and good to hear from you, I will keep you posted on the progress.
     
  9. vfrcapn

    vfrcapn Member

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    I have a couple left over F carb parts, if you need something you can't find let me know and I'll check my parts box.
     
  10. CAP66

    CAP66 New Member

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  11. kennybobby

    kennybobby New Member

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    Heart of Dixie Georgia Boys mighta been usin' dat
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    A lathe and a mill--why you could probably turn your own aluminum fuel tubes with that equipment...
     
  12. CAP66

    CAP66 New Member

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    Very true, I had never given that a thought. I will have to check and see if we have the rite OD tubing for the job, cutting an o-ring groove is nothing, tig welding the tubes together is a little harder. great idea
     
  13. CAP66

    CAP66 New Member

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    Got my VTR1000F shock today and things look real good. I have to make some small mods to the mounting on the linkage but nothing major. I will be making the molds tonight at work and tomorrow after mounting the shock I will post pictures and explain what I did. The big yellow spring looks nice setting inside the black frame. updates soon.
     
  14. CAP66

    CAP66 New Member

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    After modifying the mounts I found that I made them upside down, so mounting the shock upside down wont work, it hits the swing arm. So I need to get another pair of original bottom mounts and weld them together to make the transition. A small set back due to not looking close enough. the length is perfect, just clearance is the issue, but soon fixed.
     
  15. CAP66

    CAP66 New Member

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    I haven't made the changes yet due to my job situation (losing my job) for speaking my mind. But I did take a few photos to show you what it looks like.
    12-6-13 002.jpg 12-6-13 003.jpg 12-6-13 004.jpg 12-6-13 005.jpg
     
  16. Captain 80s

    Captain 80s Member

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    I think I'm a little confused about the mount/adapter. What keeps it from rotating on either the shock or linkage (or both), and moving out of position? Doesn't it need to be indexed on one side?
     
  17. CAP66

    CAP66 New Member

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    The stock part from the old shock is welded to the top mount of the new shock, but what I failed to see because of the time I had to combine the two was the width of the yolk for the shock end. The smaller yolk is actually from the VTR1000F shock welded to the old VF1000F yolk and the VTR shock ends I thought were the same width, but the bottom is slightly wider than the top of the shock.
    So I must cut the sides off the VTR yolk and reweld them to fit the bottom of the shock. The larger end is stock and fits the lower linkage fine, If I had time I would machine one of aluminum but I think I just lost my job and will not have access to a mill and lathe. I hope that makes sense, but once the shock to linkage adapter is installed it will work just like the old stock one, just a better shock.
     
  18. CAP66

    CAP66 New Member

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    12-6-13 007.jpg

    you can see the width is to narrow to fit the shock, so I will make the changes when I get a chance. I want to get this done so I can put the engine back in the frame, along with the wheels. Sucks waiting :mad:
     
  19. Captain 80s

    Captain 80s Member

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    I got what you were doing from the first photos. But, again, doesn't the shock side need to be indexed, fixed in place, so it can't rotate? Just like the clevis welded on the end of the original shaft?
     
  20. CAP66

    CAP66 New Member

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    The yolks are welded so the shock cannot rotate, I left the stud in the VTR mount and cut it to about one half inch, then welded on the back side of the VF mount, then welded all the way around the two. Once bolted into the frame and linkage, both ends of the shock will not spin if this is what you mean. The length is the same as the original VF1000F shock with the double clevis's. and the bike weights are about 150 pounds difference I believe. I weigh around 170 so I hope its not to much of a difference.
     
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