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rear shock model compatability

Started by dirk, September 06, 2019, 03:37:18 AM

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dirk


mornin from the uk

my rear shocker needs replacing. i have a 3cv but have been told i cannot use the shock from another model. can someone clarify this please.

cheers.

TomJK

Hi
They are all different, same with linkage...
Cheers, Tom.
Past bikes : BMWR90-S,BMW R100CS, Ducati 900SD, Kawasaki GPZ600,Yamaha FJ1200,Kawasaki ZZR 1100 (4x),Kawasaki ZZR1200, Honda CBR1100XXX,Yamaha Thunderace, Kawasaki ZX10R (3X),
Aprillia Falco,Honda CBR600F4I, bikes today : Kawasaki ZX10R (C1, the best!),Yamaha FJ1200, soon to come Kawasaki Z900.....

aviationfred

The 1984-1987 models use a scissor type of linkage to connect the shock to the swing arm. The lower end of the shock has a single bearing for mounting. The 1988-1996 models use a relay arm and dog bone style linkage. The lower end of the shock has a clevis style mount.

The 3CV shock has a frame mounted remote adjuster via a chain. The 3YA/3XW shock does not.

The 3YA/3XW shock can be installed on a 3CV. The chain will need to be removed and the remote adjuster then becomes unusable. Also, the 3YA shock will need to be shimmed with washers for the mounting points.

My suggestion is to purchase a NEW aftermarket shock. Even the budget aftermarket shocks are better than the OEM shocks when they were new. There are a few places around the world that can and will rebuild your OEM shock, but for just a bit more cost you can have a better shock. IMO, rebuilding an OEM FJ1100/1200 shock is like polishing a turd. Once you get the OEM shock back from being rebuilt, it looks great and is nice and shiny, but it is still a turd.


Fred
I'm not the fastest FJ rider, I am 'half-fast', the fastest slow guy....

Current
2008 VFR800 RC46 Vtec
1996 VFR750 RC36/2
1990 FJ1300 (1297cc) Casper
1990 VFR750 RC36/1 Minnie
1989 FJ1200 Lazarus, the Streetfighter Project
1985 VF500F RC31 Interceptor

dirk

cheers for all the feedback
this is what i have been looking at
https://www.ebay.co.uk/itm/YAMAHA-FJ1200-REAR-SHOCK-ABSORBER-1992/143360777766?hash=item2160f7de26:g:oX8AAOSwjnJdXCda

i,m not bothered about the chain adjuster just whether it will fit.
cheers

new shock would cost what i payed for the bike.

Millietant

I agree totally with Fred, Dirk. I junked my standard 3CV shock about 11 years ago Dirk - splashed out on a Hagon, I think they're about £300 (maybe less) these days, from the UK FJOC and they're worth every single penny !!

If you bought a running FJ 1200 for less than that, then I'd say spending the money on the shock means the bike is still a massive bargain !!

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.

Pat Conlon

Replacing the FJ's oem shock is #1 on my mod list. It is the most expensive** but worth every penny.

Do not gamble of buying a clapped out used oem shock. That's like buying used fork springs.
If you want to gamble, buy a good quality used aftermarket shock like a Penske, Hagon, Ohlins ...at least you can rebuild those.


**other than engine mods.
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

giantkiller

Or at least do the Honda shock conversion
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