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Author Topic: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"  (Read 34396 times)

Offline scott s

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  • Posts: 1247
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #20 on: Aug 25, 2011, 19:56:06 »
 Don't give up on the ol' girl!
 
 Here's some inspiration for you....This is my girlfriend's '85 FJ600. Purchased from the original owner about 5 years ago with a stack full of service records, receipts, owners manual, tool kit...even a set of genuine Yamaha saddle bags that are color matched!
 Amazing bike and fast as hell. It was the world's fastest 600cc production bike in 1985.
 



 
 Check out xjbikes.com . Good forums for these bikes (the FJ was an XJ in Europe and the engine is basically the same as many of the other XJ models).
 
 Also, you mentioned something about the bars.... Did you know you can swap in a Radian top triple tree? It has risers and you can run almost any handlebar, then.

Offline Kickeroo

  • Posts: 126
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #21 on: Aug 26, 2011, 07:56:00 »
Will do.  Thanks.  I dig the Beetle, too.  (mine is a '00 1.8 GLS)

Offline Kickeroo

  • Posts: 126
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #22 on: Aug 27, 2011, 16:55:18 »
I changed out the clutch cable and was happy to see that the clutch assembly is much smooter than I originally thought.  Moved on to the great Carb Swap.  I yanked out the FJ's with no problem, and inspected them to see what I would need for the FZ carbs that a Facebook friend gave me.  Well, one significant difference is that it appears the FZ originally had a 3-prong gas intake piping arrangement versus the FJ's original single gas intake. So, it's back to the Microfiche world to see what it'll take to upgrade...beyond a few exta lenghts of fuel piping.  I'm guessing/hoping a one-in-three-out fitting exists?

Offline Kickeroo

  • Posts: 126
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #23 on: Sep 01, 2011, 08:59:28 »
Minor setback.  In  trying to see what was in the front brake reservoir, the cover screw stripped. Ok, no problem....I tried using a screw extractor.  Nope.  Didn't work.  So, I started drilling. I drilled out enough that I was able to remove the cover and the gasket.  Any leftover brake fluid has, well, turned to a white dusty powder.  I shop-vacc-ed that out.  Back to the stripped screw. I shot it with Liquid Wrench and let it sit for a good while.  Then I went back at it with the smallest screw extractor.  I thought I was making progress, when SNAP! As you can see from the picture, the hole on the left is now filled with a just-about-undrillable-hardened-steel-broken-screw-ectractor bit. Not that the reservoir, not any lines coming to it apear to be salvagable, due to the sublimation of the brake fluid to a brake solid.  A run to Pro Class (the local bike junkyard) is on the weekend schedule, since this style of brake was used by Yamaha quite a bit:

Pet Peeve: fittings.  There's is an underwhelming selection of available metric fittings in this town (Richmond VA).  I have a "kit" on the way to me from Amazon that gives me an assortment that may or may not be useful.  What's shown is an exhaust stud (Yamaha part number 90116-06466-00) that goes for $1.81 a piece.  Above is a hex-head metric machine screw that I believe would work for securing the exhaust header that I got from Lowe's for $2.07 a pair ($1.035 each).  By using this I would also eliminate the nut (Yamaha part number 90179-06500-00) at $2.02 each.  Now, I've cleaned up the fittinngs I have, but after 27 years on the job (accompanying rust), I think they deserve a retirement.  What I want to know is this: how "special" are the fittings I'm retiring?  Are they treated for such high-temp use such that everyday fittings would buckel and disintigrate, or have I fugured out the dirty little secret of nuts and bolts?

The exhaust header, awaiting the aforementioned fittings.  looks brand new, and is painted with the appropriate header paint

The old carbs from the FJ.  Maybe this winter, if all goes well, I'll clean em up, slap them on ebay and see what happens.

Offline Kickeroo

  • Posts: 126
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #24 on: Sep 05, 2011, 11:40:11 »
A little retrospect on how this project is proceeding. 
First, I finally received the title from PA.  I had forgotten BITD that I titled it to my soon-to-be-x's-parent's house that eventually was forclosed on.  I'm surprised I wasn't told to surrender the bike against back property liens!

Second, I did a little more research on the exhaust stems, and at the end of the day, I don't want to compromise the design intent, especially since Yamaha made one side of the stems M7, and the other side M6.  Nice...  So, Bike Bandit got the OEM business along with an red anodized aluminum fuel filter, some clear red fuel line and, because insurance is a wonderful thing, KREEM for the tank.
Another thing I bought along the way is a proper adjutible fork seal driver.  The Scrapple II project has a pair of post-77 forks that were given to me, so I'll try to get to those first.  This is something I HAVE to to learn how to do correctly if I'm going to eventally have 4 running bikes.
 
« Last Edit: Sep 06, 2011, 08:16:30 by Kickeroo »

Offline Griff5268

  • Posts: 332
    • Georgia Moto Ryder
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #25 on: Sep 05, 2011, 17:26:37 »
I've got one of those brake units if you need it. It just doesn't have the hole to screw in a mirror. You may be able to morph them into one unit...Email me if u need it man.

Offline Griff5268

  • Posts: 332
    • Georgia Moto Ryder
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #26 on: Sep 05, 2011, 17:28:25 »
Check out my profile pic..Just added a filter myself but went with the clear blue line..It looks awesome under my white leds at night.. The Jig is coming together nicely.

Offline Kickeroo

  • Posts: 126
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #27 on: Sep 05, 2011, 20:23:11 »
I've got one of those brake units if you need it. It just doesn't have the hole to screw in a mirror. You may be able to morph them into one unit...Email me if u need it man.
I have an ongoing bid for one on ebay, but I will definitely get back to you on that.  Thanks!

Offline Griff5268

  • Posts: 332
    • Georgia Moto Ryder
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #28 on: Sep 06, 2011, 09:35:56 »
Hell, just pay me for the shipping and this one's yours.. Let me know if ebay falls through.

Offline regal7point5

  • Posts: 63
Re: 1984 Yamaha FJ 600- Rise of "The Mighty Jig"
« Reply #29 on: Sep 21, 2011, 10:36:10 »
Kickeroo, where in RVA are you?  I was in Midlo and just moved to Powhatan and have a 86 Radian.  I'd love to swing by or at least offer moral support, parts comparisons, etc if you need it.  Having a live running bike can be a great thing when rebuilding to compare components to.
 
Aaron
1972 Yamaha LT2 Enduro
1976 Kawasaki KZ400
1980 Yamaha SR250