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rear shock torque spec

Started by Tuned forks, May 19, 2019, 03:19:31 PM

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Tuned forks

The rear suspension on my '90 is going back together.  Most fasteners I can find a torque spec for them.  However, I can't seem to get one for the lower rear shock mounting bolt.  This would be the bolt that connects the rear shock to the wishbone.  My service manual, even though it's supposed to cover FJ1100 &1200's, mostly seems to discuss the 1100's rear suspension.  The owner's manual lists torque by fastener diameter.  By that spec, the bolt in question would be 30 ft lb.  My Haynes manual either is incorrect at 6.5 ft lbs or it's referencing a different fastener.  Anybody know this spec or have the appropriate Yamaha service manual for 1990 specs?

Joe
1990 FJ1200-the reacher
1990 FZR 1000-crotch rocket

aviationfred

I hope this helps. Taken from the Haynes manual.
I would use the torque of 47ftlbs for the lower shock bolt to the relay arm. As given for the 91 and later models.


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

Current
2023 Moto Morini X-Cape 650
2008 VFR800 RC46 Vtec
1996 VFR750 RC36/2
1990 FJ1200 (1297cc) Casper
1990 VFR750 RC36/1 Minnie
1989 FJ1200 Streetfighter
1985 VF500F RC31 Interceptor

Tuned forks

1990 FJ1200-the reacher
1990 FZR 1000-crotch rocket