Anybody have the total suspension travel numbers for the 1989 FJ? Trying to setup my Wilbers rear shock.
Thanks,
Mike
Mike...this is copied from the Yamaha Service Manual
HTH's
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Model FJ1200w/WC
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Front Suspension:
Front Fork Travel 150mm(5.91in)
Fork Spring Free Length 485mm (19.1in)
<Limit> 480mm(18.9in.)
Spring Rate K1 4.71 N/mm (0.48 kg/mm, 26.9 lb/in)
K2 6.86 N/mm (0.70 kg/mm, 39.2 lb/in)
Stroke K1 0-100mm (0-3.74in)
K2 100-150mm (3.74 5.91in)
Optional Spring No
Oil Capacity 395cm2 (13.9 Imp oz. 13.4 US oz)
169mm (6.65in)
Oil Grade Yamaha fork oil 10wt equivalent
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Rear Suspension
Shock Absorber Travel 40mm(1.57in)
Spring Free Length 163.5 mm(6.44in)
<Limit> 159mm (6.26 in)
Fitting Length 151.5mm (5.96 in)
Spring Rate 196 N/mm (20kg/mm 1,120lb/in)
Stroke 0-40mm (0-1.57in)
Optional Spring No
Cheers...Jake
Mike,
150mm front, 119mm rear (with stock shock, 40mm shaft travel)
if your Wilburs has more or less than 40mm multiply the shaft travel by 3 (2.975 to be exact) to find rear travel.
You may also want to check the overall fork travel. If I remember correctly you have the F3 fork mod which gives you only 130mm travel as opposed to the FJ's 150.
here is a previous post on the subject.
Quote1. Fork Ride and free sag; To find a good baseline setting I look for sag numbers of 1/3 of overall travel for basic street riding and 1/4 overall travel for aggressive sport riding. On the FJ this works out to 50mm for general street riding or 37mm for more aggressive riding. (based on assumption that my service manual is correct listing 150mm overall travel) . While this is fairly easy to achieve by adding preload with adjusters and spacers, you still want to make sure that you have somewhere between 10-15% (15-22mm) of overall travel in free sag. If you are unable to reach both the ride and free sag numbers you need new springs.
2. Shock ride and free sag; You want to use the same sag percentages at the shock as you do the forks. On the FJ this works out to 40mm for general street riding and 30mm for the more aggressive. Again you want to check the Free sag to ensure that it is in the acceptable range (12-18mm). (based on assumption that my service manual is correct listing 119mm overall travel)
http://www.fjowners.com/index.php?topic=349.0 (http://www.fjowners.com/index.php?topic=349.0)