Welcome to VFRworld.com! Log in or Sign up to interact with the community.

Race Tech Fork Springs?

Discussion in '3rd & 4th Generation 1990-1997' started by Rex Gunn, Feb 16, 2012.

  1. Rex Gunn

    Rex Gunn New Member

    Joined:
    Feb 12, 2012
    Messages:
    29
    Likes Received:
    0
    Location:
    Sacramento, CA
    I just bought a 1997 vfr 750 and the front end feels a little squishy, actually so does rear end. I was wondering about these race tech springs and if anybody has put them into this gen bike? Also is swapping them out difficult? Doesn't look too bad in the manual but I have never done it before. Thanks
     


    This site may contain affiliate links for which VFRworld may be compensated
    #1
  2. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

    Country:
    United States
    Joined:
    Oct 5, 2009
    Messages:
    7,831
    Likes Received:
    91
    Location:
    Colorado Front Range
    they are well worth the money and stupid simple to replace. The only "hard" part is correctly setting the preload.

    Your progressive fork springs from the factory have a lot of preload. Switching to a 1.0 or 1.1kg spring requires a different spacer. The racetech springs will be a different length than your OEM spring. Many people make the mistake of trying to measure the racetech spring and cut a spacer to equal the same "stack" as the OEM and spacer.

    WRONG. You will end up with far too much preload and hate the springs.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #2
  3. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

    Country:
    United States
    Joined:
    Oct 5, 2009
    Messages:
    7,831
    Likes Received:
    91
    Location:
    Colorado Front Range
    the other problem you can have is not changing front and rear together.

    If you change the front to the right springs without changing the back, chances are you will have a hard time turning in hard corners. The rear end will sag while the front stays up changing the geometry such that the bike doesn't like to turn.

    If money is tight, best to change the rear first IMO. Pick up a used 929 shock on ebay for $35 and it's a simple adaptation to make it fit. If you have the money, then do the 929 rear and change the front springs - you won't regret it.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #3
  4. Davis5g

    Davis5g New Member

    Joined:
    Sep 2, 2010
    Messages:
    624
    Likes Received:
    0
    Location:
    Pittsburgh, PA
    Racetech can do a fork setup for you if you've got the cash, theres also a guy on here the does suspension work. Jamie Daugherty I believe, he has a link to his website in his signature. +1 on the 929 rear shock conversion, there is plenty of info on here about the swap, just search for it.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #4
  5. JamieDaugherty

    JamieDaugherty New Member

    Country:
    United States
    Joined:
    Aug 26, 2006
    Messages:
    2,389
    Likes Received:
    27
    Location:
    Fort Wayne, IN
    Yeah, I can help you out with whatever upgrades you are interested in. Something to keep in mind is that springs just support the load but the damping/valving is where the handling performance is generated. Just swapping springs is a move in the right direction but shouldn't be considered alone. In fact, heavier springs will make the stock valving shortcomings even more noticeable.

    If you need any more details feel free to shoot me an email and I can let you know what I suggest for your application.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #5
  6. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

    Country:
    United States
    Joined:
    Oct 5, 2009
    Messages:
    7,831
    Likes Received:
    91
    Location:
    Colorado Front Range
    Good call, I forgot to mention that point. :thumbsup:

    My local suspension guy had me up the weight of my fork oil to make up for the fact that I wasn't willing to put any money into valving at this time.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #6
  7. Rex Gunn

    Rex Gunn New Member

    Joined:
    Feb 12, 2012
    Messages:
    29
    Likes Received:
    0
    Location:
    Sacramento, CA

    Ok cool. Well that all sounds good. I appreciate all the help. I'll post the progress as it happens.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #7
  8. Rex Gunn

    Rex Gunn New Member

    Joined:
    Feb 12, 2012
    Messages:
    29
    Likes Received:
    0
    Location:
    Sacramento, CA
    So is there anything special I need to do to make that 929 shock fit?
     


    This site may contain affiliate links for which VFRworld may be compensated
    #8
  9. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

    Country:
    United States
    Joined:
    Oct 5, 2009
    Messages:
    7,831
    Likes Received:
    91
    Location:
    Colorado Front Range
    yes. on the 4th gen VFR, the top clevis mount bracket needs to be extended around 1".

    The cheap way is buy a $30 shock on ebay and fabricate/modify your existing mount. I don't recal if you may also need to trim the battery box plastic. All fairly minor if you know which end of a wrench is which. I think on my 3rd gen I had to move the starter relay to the side of the battery box instead of in front of it.

    Jamie has numerous positive reviews for his rear shock mod. You can buy a shock from him that's completely rebuilt and he modifies the top of the shock so it will drop right in without modification to the mount clevis.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #9
  10. Rex Gunn

    Rex Gunn New Member

    Joined:
    Feb 12, 2012
    Messages:
    29
    Likes Received:
    0
    Location:
    Sacramento, CA
    Sweet, well I just shot him an email. Thanks again
     


    This site may contain affiliate links for which VFRworld may be compensated
    #10
  11. JamieDaugherty

    JamieDaugherty New Member

    Country:
    United States
    Joined:
    Aug 26, 2006
    Messages:
    2,389
    Likes Received:
    27
    Location:
    Fort Wayne, IN
    Hey Tink, I think that guy sent you in the wrong direction. Harshness is the biggest problem with the VFR800 forks and going with heavier fluid just makes that worse. There really isn't any 'cure' for the issues with the stock forks except a revalve. If you aren't ready to make that leap I would suggest sticking with Honda Pro Oils 5w fluid.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #11
  12. ridervfr

    ridervfr Member

    Country:
    Belgium
    Joined:
    Dec 26, 2009
    Messages:
    4,048
    Likes Received:
    144
    Location:
    South FL
    Foot Note here: Amazing as it sounds, I had the stock fork seals on my 3rd generation for 20 years and 70,000 miles almost. Its a 1991 that I got back in 95, anywho, I was board one day and decided to drain the fork oil. Honda was thoughtful back then and gave us drain bolts. Did the fluid swap for Honda weight 5 oil. My fork seals immediatly started weaping within the first ride, also, I could tell instantly that the front end did not feel the same.

    Bear in mind that I used Bel-Ray 7 weight along with Race Tech springs and emulators. I could tell the difference between 5 and 7 on my bike. Moral of the story? If its not broken, dont try and fix it. Flip side is: I cant really complain about the seals going out after two decades and it did give me a chance to clean the fork tubes and the interior of them (two cans of brake cleaner.)
     


    This site may contain affiliate links for which VFRworld may be compensated
    #12
  13. Gbam

    Gbam New Member

    Joined:
    Mar 8, 2011
    Messages:
    15
    Likes Received:
    0
    Sorry for the threadjack, but I have a question for Mr. Daugherty... How much is your modified rear shock? My 4th gen is very soft, especially with my wife on the bike... We aren't big people at all... I'm at about 160 Lbs (A monster, I know!) and my wife is right at 100... Do you have a site for refernce with pricing and specs?

    Okay, I'm done, sorry!!
     


    This site may contain affiliate links for which VFRworld may be compensated
    #13
  14. Rex Gunn

    Rex Gunn New Member

    Joined:
    Feb 12, 2012
    Messages:
    29
    Likes Received:
    0
    Location:
    Sacramento, CA

    No problems, in fact I was wondering the exact same thing. Except I'm about 185 and my wife is 105. His site is on his signature but the 4th gen part is under construction.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #14
  15. Rex Gunn

    Rex Gunn New Member

    Joined:
    Feb 12, 2012
    Messages:
    29
    Likes Received:
    0
    Location:
    Sacramento, CA


    This site may contain affiliate links for which VFRworld may be compensated
    #15
  16. JamieDaugherty

    JamieDaugherty New Member

    Country:
    United States
    Joined:
    Aug 26, 2006
    Messages:
    2,389
    Likes Received:
    27
    Location:
    Fort Wayne, IN
    My suspicion is that the fluid had been leaking for some time and the level was below the seals. Once you filled them up there was ample fluid leaking that you noticed it. Seals do not just "go bad" all of a sudden like that.


    Shoot me an email. I don't like to quote prices on forums as this thread will be around for years but prices on parts are constantly changing. Thanks!
     


    This site may contain affiliate links for which VFRworld may be compensated
    #16
  17. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

    Country:
    United States
    Joined:
    Oct 5, 2009
    Messages:
    7,831
    Likes Received:
    91
    Location:
    Colorado Front Range
    Not sure if it makes a difference; I was referring to the 3rd gen 750. I haven't made any changes to the 800 yet.

    I'm quite pleased with how it's been working out but will keep your suggestion in mind.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #17
Related Topics

Share This Page