If you have the original tool kit for the XT you will find a "C" spanner for adjusting the rear shock i,ve moved mine onto the 2nd from hardest setting and I dont carry a pillion! If\when you adjust the shock it is easyer if done by 2 people, keep the bike on the side stand and get your helper to pull the bike over against the stand so that the rear wheel is lifted off the ground as this takes the load off the spring then its an easy job just mind your fingers!!

__________________