STEP 1 With the bike on a stand, spin the rear wheel through several rotations to find where the chain is tightest (since the chain wears unevenly). While rotating the tire, take note of the drive chain and inspect for damaged rollers, loose pins and links. Also, inspect the rear and countershaft sprockets for signs of excessive wear. Replace these parts if necessary.
STEP 2 Once the tight spot in the chain has been found, use your fingers to lift up the chain in the middle of the upper chain run. The distance between the centerline of the chain and the swingarm (at the end of the chain slider) is the best place to check. Using a measuring tool, take note of the distance from the swingarm to the chain-roller pins. Consult your owner’s manual to determine if your drive chain needs to be adjusted.
STEP 3 Should the drive chain need to be adjusted, use an open-end wrench
(32mm for most bikes) to loosen the rear-axle nut. With a 12mm open-end wrench, loosen the lock nuts found near the end of the swingarm. Be careful not to shear the lock nuts.
STEP 4 Locate the chain-adjusting bolts and, with a 10mm open-end wrench, turn both bolts evenly until the drive chain slack is within the recommended value. To tighten the drive chain, turn the adjusters coun- terclockwise. To loosen it, turn the adjusters clockwise and push the rear wheel forward with your hand. It’s imperative that you turn each adjuster exactly the same amount to maintain correct axle alignment.
STEP 5 Note that the rear-axle blocks have hash marks. The notch of the left chain adjuster should align with the same swingarm mark that the notch of the right chain adjuster aligns with. We recommend double- checking the wheel alignment with a tape measure. Locate the swingarm pivot bolt and measure from that point to the center of the
axle. Do the same on the other side of the swingarm. The length should be the same for each side of the swingarm.
STEP 6 Once the drive-chain slack is in specification and the rear wheel is properly aligned, place a rag between the chain and the rear sprocket. Slowly spin the rear wheel backwards until the rag prevents the wheel from turning. This ensures that the rear-axle blocks are pressed against the chain adjusters. Using an open-end wrench, tighten the rear-axle nut to the specified torque setting found in your owner’s manual.
STEP 7 Place a 10mm open-end wrench on the adjusting bolt and a 12mm open-end wrench on the lock nut. Make sure that the adjusting bolt doesn’t spin, and tighten the lock nut until it bottoms out against the swingarm. Do the same for the other side of the bike. Check the chain slack one final time before riding.
HOW TO ADJUST YOUR CHAIN Follow these steps to effectively inspect and tighten your chain.
REGINA RH2 Regina’s RH chain is reinforced to ensure high resistance to elongation and to the severe impulsive stresses of offroad riding. DETAILS: Important features include extended bushings and solid rollers, alloy carbon steel pins and shot-peened plates to offer increased tensile strength and fatigue resistance. TYPE: Non-O-ring chain. WEIGHT: 4 lb. RETAIL PRICE: $73.29. CONTACT: Your local dealer or www.reginachain.it/eng.