Written by Stom_m3
Part 1: Lowering Rear Shock With Stock Adjustment
So I finally got around to lowering the rear shock on my WR250R. It wasn't too difficult and took less than an hour to do.
Channel Locks (Large)
6" extension for 1/2" Ratchet
19mm socket (for Connecting Rod)
17mm socket (for Relay Arm)
1/2" Torque Wrench
3/8" Torque Wrench
3/8" to 1/2" socket adapter (only for torque wrench)
1. Put Motorcycle on stand.
2. Remove the Connecting Rod Nut. You will need to use the punch and hammer to remove the Connecting Rod Bolt from the Relay Arm. The Connecting Rod is the Rod from the frame to the Relay Arm. The Relay Arm is the "L" shaped piece. The Connecting Rod should fall away.
3. Remove the Lower Shock Nut. You will need to use the punch and hammer to remove the Lower Shock Bolt from the from the Relay Arm. The parts should separate.
4. Put a jack under the rear tire and jack up the rear tire to move all of the linkages away from the lower shock mount.
5. Use the Channel Locks to hold the Lower Shock Block. Use the adjustable wrench to loosen the Jam Nut. Lower Jam Nut and Lower Shock Block to desired position.
6. The Lower Shock Block is asymmetrical. The Lower Shock Nut goes on the right side of the bike. You will need to position it accordingly and tighten the Jam Nut. Do not cinch the jam nut against the rebound adjuster.
7. Now everything is ready to go back together. Lower the rear tire off of the jack. You will need to manually lift the rear tire and align the Lower Shock Bolt hole with the Relay Arm hole. It's easier to use a punch to insert in the hole to get things close. With the holes aligned and the punch in the hole, push the bolt through. You might have to tap the bolt lightly with the hammer. The punch will simply fall out as you push the bolt through.
8. Follow the same procedure for the Connecting Rod. It's easier to do this step with a second person lifting up on the rear tire.
9. Tighten the Lower Shock Bolt to 38 ft-lb and the Connecting Rod Bolt to 58 ft-lb.
Hope this helps everyone.
Part 2: Lowering the Front Suspension
Okay so I was a little bored this afternoon and got around to lowering my front as well.
6" extension for ratchet
3/8" Torque Wrench
1. Place WR on stand
2. Place Automotive Jack underneath the front tire. My jack has about a 5" lowered height. Leave the jack in the low position.
3. Loosen the lower triple clamp bolts on both sides.
4. Loosen the upper triple clamp bolts on both sides.
5. Grabbing one of the fork legs and holding onto the handlebars, push the fork leg up in the triple clamp to desired height.
6. Do the same to the other fork leg. I measured out 5/8" from the top of the fork tube (not top of cap).
7. Tighten all of the bolts to 16.5ft-lb.
The job was very quick and should take around 20 minutes.
Editor's Note: A special thanks to Stom_m3 for letting us reprint his R² lowering article and photos that originally ran on Thumper Talk. I know I, and countless others used his article to lower our bikes with the stock Yamaha adjustments. We're pleased to make it accessible here on WRRDualSport. To read the original thread, click here.