Make sure the horse is tied and been brush, before beginning. Do up the Girth Buckles or Clinch Straps: Either buckle the girth or tie the cinch up loosely. Tighten the girth or cinch gently in small increments. It's common to girth a horse up suddenly and tightly causing the horse to kick or bite. This can cause the horse to resent being girthed up and become "girthy". Some horses may bloat themselves in anticipation of discomfort. Ask the horse to step forward, wait a moment for it to exhale and tighten the girth gently again.Only tighten the girth enough to hold the saddle firmly in place. Some people feel the tighter the girth the more secure they be. There should be no need to make like a sauage out of the horse by over tighting the girth - this can lead to injury and may compromise the horse's breathing. You should be able to slide your fingers between the girth or cinch and the horse. If there are tabs at the front of the saddle pad, loop them through the D-rings at the front of the saddle and tie or fasten them.
Begin with a safety tied horse. Slide the Bit in the Horse's mouth. Hold the bridle up over the horse's nose with the right hand. Using your left hand fingers, hold the bit against his mouth, and insert your thumb into the space between the front and back teeth. If the horse is resistant to taking the bit, wiggling your thumb may encourage the horse to open his mouth wider. Slide the bit in, and lift the bridle higher with your left hand so the horse can't spit the bit back out. Be careful not to knock the bit on the horse's teeth. Then pull the crown over the left ear: Grasp the crown of the bridle with your left hand and with your right hand gently bend the horse's right ear forward to slip it under the crown. Then pull the crown over the right ear: Switch your grasp of the bridle again to your right hand and with your left gently slip the left ear under the crown. Try not pull the bridle too high, thus pulling the horse's mouth. Fasten all the Buckles or Snaps: Do up the throatlatch of the bridle. This endurance bridle has a snap at the throatlatch. Most tradional leather bridles will have buckles. So that the horse can flex his neck properly don't do the throatlatch up to tightly; leave about 4 inches slack. You should be able to slip your hand, palm flat down, between the strap and the horse's jaw. Unless you are using a figure-eight, flash, or grakle noseband, leave about 2 fingers width between the lower jaw and the strap. If you are using a curb bit, you'll need to do up the curb chain or strap. Leave the width of two fingers between the chain and the lower jaw. Leaving the chain too loose or tight can make the action of the bit or the chain more severe. If the bit has a port it could rotate up and hurt the top of the horse's mouth.