How do I properly adjust my bike's suspension for passangers?

I'm new to bikes, and I don't have an owners manual for my '96 yamaha yzf600r. I weigh 210lbs, and i was wondering if i had a 100 some odd pound passanger if I needed to adjust the suspension and if so, how much I would need to do this? Any help would be greatly appreciated.How do I properly adjust my bike's suspension for passangers?Take it to your local shop, they will be more than happy to tell you how to adjust or they will adjust it for you. If you don't ride a passenger a lot I wouldn't adjust the shocks. It changes the way the bike handles.How do I properly adjust my bike's suspension for passangers?are you riding with this person a lot. you can stiffen your rear shock , and look at the adjustments on the front forks , you can adjust your rebound . ask your local shop to tell you how to adjust it.How do I properly adjust my bike's suspension for passangers?Most motorcycles, even my 76 Suzuki 750, has adjustable spring preload to compensate for variable passenger or luggage loads.My bike , like a lot of them , has a stepped ring at the bottom of the shock, which when turned, will stiffen the spring or add more preload. I think your model has a similar arrangement but with a treaded ring which I bet you need a special wrench to turn. Hopefully its still in the tool kit if you have one.How do I properly adjust my bike's suspension for passangers?If no shock adjustments, the rear tire pressure should be set from single rider of 36PSI to 2 riders or tire pressure of 40PSI for rear tire only. Thats it. Enjoy your ride.How do I properly adjust my bike's suspension for passangers?Im sure you already know where the shock is and how do adjust it. So i will skip that, an easy way for how much is to stand the bike up straight measure from anyplace, note where you will use the same spot again, to the top of the tire. Sit on the bike alone. Note how much the distance is.

Stiffen the rear suspension a little, have the passenger sit on bike with you. Adjust the shock until sag is same as with you alone. This is a simple and basic way. This is also given the the bike is properly adjusted for only you to bgin with. It should get it close.