Front fork damage

[simi_ed]

No.
To use the YZF600 forks you need essentially the complete YZF front end. Triples, forks, axles, spacers, speedo drive, axle and fender. Note that the YZF600 uses a 17mm axle .
To quote the YZF600 guru, Jon Cain, " The FJ/YZF600 conversion is not for the faint of heart."

Also per Jon, you use '87 or ''88 FZR1000 triples with the YZF600 forks.  You also gain the 3.5" YZF wheel.

Jon coached me through getting a set of these on my bike, and Bill P built them up right, with Traxxion springs and all the Race Tech goodies.

Well worth the (relatively low) cost of admission, IMO.         

Me too!

[Pat Conlon]

Also per Jon, you use '87 or ''88 FZR1000 triples with the YZF600 forks.  You also gain the 3.5" YZF wheel.
Well worth the (relatively low) cost of admission, IMO.         

Me too!

Every (as in all) FJ'er's  who has made the switch to the YZF600 front end, has *nothing but good things to say* about the results.
A dramatic improvement.

[rktmanfj]

Also per Jon, you use '87 or ''88 FZR1000 triples with the YZF600 forks.  You also gain the 3.5" YZF wheel.
Well worth the (relatively low) cost of admission, IMO.         

Me too!

Every (as in all) FJ'er's  who has made the switch to the YZF600 front end, has *nothing but good things to say* about the results.
A dramatic improvement.

With the YZF front end, wheels, and shorter dog bones, it handles a lot more like a YZF600 than it does a stock FJ, IMO.

[simi_ed]

I did the Penske with adjustable length instead of dogbones.  I've never ridden a YZF600, but I have ridden my Dad's '90 back to back with my '89, and there's a night & day difference.  Real brakes, maneuverability, suspension/ride quality are all superior compared to original.  I probably could have spent less to get comparable handling, but where else do you go to get the torque of a FJ?

Thanks to Jon Cain, and all the others that have guided me through (and enabled!) my sickness, mod-itis.