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Suspension recommendations

Started by Jpn, October 02, 2025, 09:47:53 PM

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Jpn

Bought my 85 FJ1100 this spring and gradually going through the bike to bring everything up to my standard. Suspension will be next, looking for recommendations on fork springs, (valves?) oil etc and what if anything should be done with the rear mono shock. Currently there's no leaks and the suspension seems to function the way it's supposed to. Albeit a bit stiff (is that normal?) even though it's been set to specs in the manual. The metering adjustment on the left front fork seems a bit wonky and I want to address that as well over this winter. Any aftermarket or stock suggestions would be greatly appreciated.
1985 FJ 1100 rider

Pat Conlon

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Jpn

Well, up to 2k I'd say. Maybe more depending on how refined the handling becomes. I'm not a knee dragging rider but I plan to keep my fj many years. I put 2k miles on it over this summer along with a lot of tlc.
1985 FJ 1100 rider

Pat Conlon

$2k is reasonable
I would do a Hagon or YSS shock (length adjustable) RPM fork valves and springs with '89 to '95 FJ forks, then replace those narrow pig heavy 16" rims with 17's ('87/88 FZR front and YZF600 rear) and run modern 17" radial tires. Some eBay R-1 front calipers and a used FZ-1 14mm m/c with braided lines would be the icing on the cake.

To me a suspension system is more than just springs and shock...it's also the tires and brakes.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Jpn

LOL well Pat I've got one up on you already! I changed over to RPM braided hydraulic lines! (I've done more than that actually like safteied petcock etc. I appreciate the suggestions but I don't know that I want to modify to that extent yet. But I will look into pricing based upon your suggestions and prob start with shock, forks.
1985 FJ 1100 rider

Millietant

I'd second Pat's comments on the shock (YSS or Hagon - I went Hagon because I live in the UK, not too far from the Hagon factory, but also because they send it to you set up for your weight and riding. The YSS is great but you have to do all of the set-up yourself, at least the Hagon is pretty close to perfect straight out of the box).

I'd also second them on the Forks  :good2:

The wheels are project for later, but very worthwhile doing  :good2:
Dean

'89 FJ 1200 3CV - owned from new.
'89 FJ 1200 3CV - no engine, tank, seat....parts bike for the future.
'88 FJ 1200 3CV - complete runner 2024 resto project
'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.