Stock Pilot Rear Shock by hoser..Wet Willy gave me a pair of his old Pilot shocks to play with, this one looks like it was off one of his jumping machines, notice the bent shaft. The service manual does not get inside the rear shocks so I decided to open one up the stock shocks are a well built unit and tuned fairly well for the average rider riding on average terrain they could stand better valving for the rider that likes to push his Pilot to the limit in the rough stuff, I have found that by simply changing the oil from the stock 0 weight oil to a 10w oil for riders under 200 lbs or to a 15w oil for riders over 200 lbs the shock valving is much better for the extreme riding conditions, even with the 15w oil I feel the shocks could still stand a little more rebound dampening on smaller bumps and whoops. Pictured below is the complete insides of a rear shock, they come apart pretty easy. The shaft could probably be straighten and the shock reused but I think I am going to study the valve stack and add some more rebound in my spare shocks to see if I can eliminate some of the pogo stick affect you sometimes get when blasting through the whoops. The oil that came out of this shock was black and smelled burnt.
Internal measurements including shim stackShaft diameter ,4925 OD Shock Body ID 1.300 Shim stack starting from the top (where the shaft nut is) Thick washer .750x.082 .750x.020 .464x.012 .828x.005 .828x.006 .828x.006 .828x.006 .828x.006 Valve stack manifold Note: 2 small holes in center are the top side. .615x.004 .474x.008 1.144x.008 1.144x.008 1.144x.008 1.144x.008 1.144x.012 1.144x.012 1.144x.012 .905x.012 .905x.012 .828x.012 .828x.012 1.145x.012 1.145x.012 1.145x.012 1.145x.012 1.145x.012 1.145x.012