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Thread: '85 GSXR750 - #havetostopbuyingwrecks

  1. #341
    Member lazyboy63's Avatar
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    really looking forward to seeing it on the road, the rs250 restoration you did was top quality you may bring it to the LNR rides more often
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  2. #342
    Member Loud's Avatar
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    Neeeeeearly.

    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"
    Likes Phildo, roomandu, 66, yaabaa liked this post

  3. #343
    Member GsxInShed's Avatar
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    I see the dreaded clutch hub nut...lock tab...eeewww.. APE nut I hope..!
    " you want a future..? reconcile your past....leave nothing to chance.."

  4. #344
    Member Loud's Avatar
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    Quote Originally Posted by GsxInShed View Post
    I see the dreaded clutch hub nut...lock tab...eeewww.. APE nut I hope..!
    Dreaded? Ruh roh, this is news to me! Ray didn't mention it, what's the go?
    Click Link for My Bikes:

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    1985 GSXR750 "Slabbie"

  5. #345
    PSB Corporate Sponsor PREMIUM potato's Avatar
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    Quote Originally Posted by Loud View Post
    Dreaded? Ruh roh, this is news to me! Ray didn't mention it, what's the go?
    just a trap for beginners

    im sure ray has done a million


    Straightline2ten your motorcycle and motor car repairer for smash repairs

    insurance or private work, plastic welding,resprays, restoration and classics

    dianella 93703770

  6. #346
    Member Loud's Avatar
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    Quote Originally Posted by potato View Post
    just a trap for beginners

    im sure ray has done a million
    He's a clever man. So far he's radiused the cam edges, installed a Busa oil pump gear to overdrive the lube system, drilled the oil galley jets to increase oil volume to the top end, plus the head and valve work as well as letting me know which original parts he wouldn't put in an engine of his (valves, followers, cams, pistons... just the expensive bits)
    Click Link for My Bikes:

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  7. #347
    Member GsxInShed's Avatar
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    yup..

    You should be fine ....then

    He knows it's a streeter ....eh?
    " you want a future..? reconcile your past....leave nothing to chance.."

  8. #348
    Member Loud's Avatar
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    Quote Originally Posted by GsxInShed View Post
    yup..

    You should be fine ....then

    He knows it's a streeter ....eh?
    He knows it's got a fastidious owner who wants a reliable and long lasting performance motor for use on the street

    Which is why I went for the last version of the 750 Gixxer motor - better conrod design, lighter pistons, better combustion chamber, same long-stroke design as the earlier versions but with the same redline as the short-stroke versions at 13,000rpm. Factory output was 118hp (about the same as my full system, PCV tuned L1 GSXR600) which was better than the '85 Gixxers 100hp. But with the performance parts and plenty of Ray's tricks you'd like to think it'll get one, maybe two more horsepower
    Click Link for My Bikes:

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    1985 GSXR750 "Slabbie"
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  9. #349
    Member Loud's Avatar
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    There, these are looking alright now. Pro-bolt stainless pinch bolts, factory stainless banjo bolt, new seal kit which included the bleed valves. The "Nissin" lettering was blasted and painted along with the rest of the caliper because how the heck do you mask that with any success?! Luckily it was raised, so I masked around the outside and ran a file and then sandpaper over it. Looks trick again now The EBC HH pads are on their way, the retaining springs are nearly at 100% (a bit more polishing) and the retaining spring screw needs plating. But they're ready to bolt on to the forks, which have come up brilliantly after being re-anodised, painted, and tickled by Russ at Dyno Time.

    Here are the forks, buried in the action room.



    It's been a busy week in there.
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"

  10. #350
    Member Loud's Avatar
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    Here's the top triple clamp. It was from a Honda CBR929 Fireblade. The Honda factory cast it with a depressed recess for the Honda badge, and as I wasn't keeping the badge something had to be done.

    So it stripped of anodising, the recess welded up and smoothed out at RAM Wheelchairs in O'Connor (fantastic job) and while there the ignition barrel mounting holes were welded up and moved the 2mm needed so that I can use the original Suzuki GSXR ignition barrel - which fits perfectly! Then it was a spray by potato using the KG GunKote, a bake at Southside Powder Coaters, and ta-na, it's ready for fitment.



    I was going to splurge on a really trick CNC triple-tree from MkII in the States, the same company that produced the excellent rear sets and brake bracket. But they've taken months for a new design to be made after parting ways with the previous manufacturer (who kept the design) and the new design will do away with the drop-clamp pattern that you see here on the CBR929 clamp.

    Seems the US racers didn't like the drop clamp, they use the original forks and it lowers their clip-ons more than they like. But I'm using USD forks, which are slightly shorter, and so I'll accept a more aggressive riding position as a compromise for keeping close to the factory geometry and therefore have a better handling bike.

    Anyhow that's a lot of explanation for what looks like a pretty plain part - but a lot of thought and effort went in to it
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"
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  11. #351
    Member Loud's Avatar
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    Another plain part - chain tensioners. No Gilles Tooling MotoGP derived fanciness here, this is the same pair that came with the '85 GSXR.

    Except the bolts are cadmium plated, along with the nuts and locators. Cadmium. It's terrible for the environment, but it outlasts cockroaches. Hey, if I'm going to live with a primitive design then they at least have to be nice to spanner.

    The blocks have been anodised (they weren't from the factory... probs because you don't see them) and the plates blasted and sprayed by 'tato in the Gun Kote.



    Look, it took me ages to do them so thanks for reading about it

    And no, those ounce bags aren't how I fund this project, they're the sandwich bags that the engine mounts came back in after I polished them and had them anodised. The photo just hasn't uploaded yet...
    Click Link for My Bikes:

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    1985 GSXR750 "Slabbie"
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  12. #352
    Member Loud's Avatar
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    There.



    30 years had left them looking pretty crabby before having the anodising stripped, being polished, then being clear anodised again.
    Click Link for My Bikes:

    Aprilia RS250
    1985 GSXR750 "Slabbie"

  13. #353
    Member Loud's Avatar
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    Last one for now. The rear suspension link.



    What you see here is a bag of bearings and seals for a ridiculously complicated eccentric pivot shock/swingarm link. You don't even want to know the price of the pivot bearing, it's bullshit.

    You'll also see the original GSXR750 link and a shiny GSXR1100 link that has been stripped, blasted, anodised and painted, after it was machined to allow it to fit in to the 750. Why? Because the 1100 link raises the rear by 1", just as the drop clamp triple does at the front. This offsets the loss of ride height from going to the 17" rims.

    I guess I could have just kept the 18" rims.
    Click Link for My Bikes:

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    1985 GSXR750 "Slabbie"
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  14. #354
    Member Crobbo's Avatar
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    Good reading, I expect to see it at the Balmoral one day.
    Rules are for the guidance of wise men and the obedience of fools. - Sir Douglas Robert Steuart Bader

  15. #355
    Member GsxInShed's Avatar
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    The idea that you do "everything for a reason"

    Is making for some enthralling reading.

    -'The bones of a bike added to the soul of the maker', really shines in your builds-
    " you want a future..? reconcile your past....leave nothing to chance.."

  16. #356
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    I assume you've got a Job/girlfriend again by the lack of updates..Thats just selfish..don't you realise how many folk are living their bike building dreams through you..( well me aleast) I need you to focus again on the build...please..desperately please...
    Likes roomandu liked this post

  17. #357
    Member shaynus's Avatar
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    ^^ What he said!
    I'm not saying let's go kill all the stupid people, I'm just saying lets remove all the warning lables and let the problem sort itself out...
    - Sarcasteacher


  18. #358
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    Loud why did you use cadmium on the bolts ? They look cool but I've never heard of that before

  19. #359
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    Just in case his bike falls into a nuclear reactor?
    Quote Originally Posted by Gippo
    cuntoxly

  20. #360
    Member BikeONE's Avatar
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    Best I can do to describe the issue is this.
    Normally it goes BRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR, shift, BRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

    But now it's a bit more like this
    BRRRRRRRRRRRRRRRRRRRR-r-r-r-r-r-r-r-r-r-r-r-r-R-R-r-r-r-r-r-, shift

    exan
    Likes DQ, Hillz, potato, roomandu, Loud liked this post

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