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giantkiller
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« Reply #15 on: August 11, 2019, 07:26:21 AM » |
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Here's a couple of pics of my bikes with inverted.
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86 fj1350r
86 fj1380t turbo drag toy (soon)
87 fj1200 865 miles crashed for parts
89 fj1200 touring 2up
87 fzr1000 crashed
87 fzr750r Human Race teams world endurance champion
93 fzr600 Vance n hines ltd for sale
Custom chopper I built
Mini chopper I built for my daughter just like the big 1
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FJowners.com
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« Reply #15 on: August 11, 2019, 07:26:21 AM » |
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aviationfred
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« Reply #16 on: August 11, 2019, 11:07:43 AM » |
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I did the write up for the GSX-R1000 forks, but Dan, (giantkiller) is who perfected the swap and I got a lot of guidance directly from Dan. Here is a photo that I took of Dan's incredible 1986. Plus the 2 that I have done.
Fred
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I'm not the fastest FJ rider, I am 'half-fast', the fastest slow guy....
Current
1995 FJ1200 Brownie Thunder
1990 FJ1200 Casper II
1990 VFR750 RC36/1 The Red Rocket
Stolen
1989 FJ1200
IBA #65004
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Pat Conlon
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« Reply #17 on: August 11, 2019, 11:36:11 AM » |
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Can the bottom mount of the fjs triple tree be safely bored out to take the forks of 50mm? No. Going from the FJ’s oem 41mm diameter to a 50mm diameter, it’s not even close. You will need a different lower triple. Dan’s (giantkiller) above solution addresses the upper triple. |
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Tips for new FJ owners: 1) Don't have an Owners Handbook? You need one: http://tinyurl.com/79fgk52) '84-'87 FJ owners: Safety wire your fuel petcock. Do it now: http://tinyurl.com/l982s8w3) Replace your oem rubber brake lines. They are long overdue. Do it now. 4) ATGATT: Skin Grafts SUCK |
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Dieselman7.3
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« Reply #18 on: August 11, 2019, 05:55:30 PM » |
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Okay thanks for the input just trying to think of what’s going to be the easiest but maintain safe functionality
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Current:
85 fj1100
89 fj1200 - was for parts now a new project
Past:
86 fj1200
05 ex500
78 Ltd750
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Pat Conlon
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« Reply #19 on: August 12, 2019, 09:05:19 AM » |
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The ‘91-93 FZR1000 front end is the easiest.
The GSXR front end is the best.
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Tips for new FJ owners: 1) Don't have an Owners Handbook? You need one: http://tinyurl.com/79fgk52) '84-'87 FJ owners: Safety wire your fuel petcock. Do it now: http://tinyurl.com/l982s8w3) Replace your oem rubber brake lines. They are long overdue. Do it now. 4) ATGATT: Skin Grafts SUCK |
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Millietant
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« Reply #20 on: August 12, 2019, 01:06:22 PM » |
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I'm with Pat on this 100%. The FZR coversion was really simple (even making the bracket for the lock stops only took 15 minutes) and great value, and I like that fact that it's an "all Yamaha" version......BUT........
If cost and difficulty/hassle/"originality" weren't an issue, I'd go for the GSXR conversion every time, as I'm sure the end result is much better handling and ride quality.
My priorities were better (but not ultimate) handling, steering, ride quality, braking and keeping it looking like the "factory-finish" FJ that Yamaha should have built.
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Dean
'89 FJ 1200 3CV - owned from new.
'88 FJ 1200 3CV - became a race bike, no longer with us.
'86 FJ 1200 1TX - sold to my boss to finance the '89 3CV I still own.
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FJowners.com
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« Reply #20 on: August 12, 2019, 01:06:22 PM » |
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Dieselman7.3
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« Reply #21 on: August 12, 2019, 05:01:09 PM » |
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My thoughts were to keep it yamaha but if the the gsxr swap is better might go that way. I guess price and availablity on parts will be my deciding factor. I’m not planning on doing it until winter so I have time to source everything before I tear down the bike (want to ride it until snow falls)
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Current:
85 fj1100
89 fj1200 - was for parts now a new project
Past:
86 fj1200
05 ex500
78 Ltd750
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CutterBill
Sr. Member
 Offline
Gender: 
Location: Rosamond, CA
Posts: 383
I hate motorcycles...
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« Reply #22 on: August 12, 2019, 05:25:03 PM » |
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I've had inverted forks on my FJ12 before. Didn't like it.
Mind you, they were still attached to the bike at the time...
Bill
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Never Slow Down, Never Grow Old.
Current Stable:
FJ1100
FJ1200 (4)
1999 Yamaha WR400 (street-legal)
2015 Super Tenere
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Dieselman7.3
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« Reply #23 on: August 12, 2019, 06:55:40 PM » |
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I've had inverted forks on my FJ12 before. Didn't like it.
Mind you, they were still attached to the bike at the time...
Bill
What was it you didn’t like? |
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Current:
85 fj1100
89 fj1200 - was for parts now a new project
Past:
86 fj1200
05 ex500
78 Ltd750
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FJmonkey
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« Reply #24 on: August 12, 2019, 07:01:35 PM » |
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I think Bill was having some fun play on words. When traditional forks are upside down, the bike is upside down.
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The glass is not half full, it was engineered with a 2X safety factor.
'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side
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CutterBill
Sr. Member
Offline
Gender:
Location: Rosamond, CA
Posts: 383
I hate motorcycles...
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« Reply #25 on: August 12, 2019, 08:47:35 PM » |
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I think Bill was having some fun play on words. When traditional forks are upside down, the bike is upside down. Yep. That was not a fun day. Thanks to AviationFred for helping me get that heavy lump right-side up... Bill |
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Never Slow Down, Never Grow Old.
Current Stable:
FJ1100
FJ1200 (4)
1999 Yamaha WR400 (street-legal)
2015 Super Tenere
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Dieselman7.3
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« Reply #26 on: August 13, 2019, 02:50:04 AM » |
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I think Bill was having some fun play on words. When traditional forks are upside down, the bike is upside down. Yep. That was not a fun day. Thanks to AviationFred for helping me get that heavy lump right-side up... Bill Right over my head  |
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Current:
85 fj1100
89 fj1200 - was for parts now a new project
Past:
86 fj1200
05 ex500
78 Ltd750
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Pat Conlon
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« Reply #27 on: August 13, 2019, 03:03:45 AM » |
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Hey Bill, are you coming up to Oakdale for Randy’s shindig?
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Tips for new FJ owners: 1) Don't have an Owners Handbook? You need one: http://tinyurl.com/79fgk52) '84-'87 FJ owners: Safety wire your fuel petcock. Do it now: http://tinyurl.com/l982s8w3) Replace your oem rubber brake lines. They are long overdue. Do it now. 4) ATGATT: Skin Grafts SUCK |
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Flynt
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« Reply #28 on: August 13, 2019, 08:55:39 AM » |
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The ‘91-93 FZR1000 front end is the easiest.
The GSXR front end is the best.
YZF750 front end looks OEM, is very adjustable, and gives you enough length on the tubes to actually fit the FJ... I'm sure spacers and extensions are 100% safe and all, but they definitely don't look OEM. The YZF750 USD mod is well documented, but it does require some work on the lower triple (putting FJ tube in YZF lower). This is not the easiest route... but it is what Pat runs ;-)... Frank |
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There's plenty of time for sleep in the grave...
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Pat Conlon
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« Reply #29 on: August 13, 2019, 11:39:39 AM » |
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Yep, love my YZF750 forks.
Thanks again Frank for the tip on getting them reworked by GT Suspension. A big difference.
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Tips for new FJ owners: 1) Don't have an Owners Handbook? You need one: http://tinyurl.com/79fgk52) '84-'87 FJ owners: Safety wire your fuel petcock. Do it now: http://tinyurl.com/l982s8w3) Replace your oem rubber brake lines. They are long overdue. Do it now. 4) ATGATT: Skin Grafts SUCK |
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FJowners.com
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« Reply #29 on: August 13, 2019, 11:39:39 AM » |
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