International Orders; Disclaimer; Installation And Basic Set-Up Instructions; Shock Length Adjustment / Ride Height Adjustment (If Equipped) - Yamaha FZR400 1988-1989 Service Manual

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International Orders

All international orders must be paid in full prior to shipment. We suggest wire transfer, VISA or
MasterCard for pre-payments. Freight, any applicable duties or taxes must be pre-paid unless prior
arrangements have been made. Our most frequent method of shipping is UPS, but we will ship DHL or
another approved international shipper.

Disclaimer

A shock absorber is a key safety component of a motorcycle. FOX Racing Shox recommends that a
qualified mechanic install your shock absorber.
Motorcycling is an inherently dangerous activity. Always ride within the limits of your skill and your
equipment.
If these setup instructions are not followed correctly, an unsafe condition may exist. If you are
uncomfortable or uncertain as to how to install your new FOX shock, have it installed by a qualified
mechanic.

Installation and Basic Set-Up Instructions

Follow this sequence of steps to properly install and set up your new FOX shock.
1) Remove the stock shock absorber from the motorcycle.
2) Set the FOX shock length (if equipped with length adjustment). See section below.
3) Install the FOX shock on the motorcycle. Torque the mounting fasteners to the motorcycle
manufacturer's recommendations.
4) Set the static sag and rider sag. See section below.
5) Set the rebound damping. See section below.
6) Set the compression damping (if equipped). See section below.

Shock Length Adjustment / Ride Height Adjustment (If equipped)

On some FOX shocks, it is possible to adjust the rear ride height of your bike, by increasing or
decreasing the length of your shock. It is best to start out with your FOX shock set to the same length
as the stock shock absorber. Once you have adjusted your spring preload and damping to your liking,
you can experiment with different rear ride height settings. See Tuning Instructions for more
information on adjusting rear ride height.

Setting SAG / Spring Preload

After fitting your FOX shock you need to set the static sag and rider sag. You will need a bike stand
that will let your suspension "hang" down in an unloaded position. The rear stand should mount onto
the foot pegs or the frame somewhere (not the swingarm), so that the rear wheel is off the ground. If
your motorcycle is equipped with a centerstand, that will suffice. If you do not have this type of stand, a
couple of strong friends should be sufficient.
1) Set the bike up on a suitable stand or get your friends to lift up the rear so the shock is fully
extended. Take a measurement from the rear axle to a point on the chassis directly above the rear
axle (see Figure 1). This is L1; write down this measurement.
5

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