Suzuki GW250 Service Manual page 34

2-18 PERIODIC MAINTENANCE
• Loosen or tighten both chain adjuster nuts 2 until there is 20
– 30 mm (0.8 – 1.2 in) of slack a at the middle of the chain
between the engine and rear sprockets as shown.
The reference marks A on both sides of the swingarm
and the edge of each chain adjuster must be aligned
to ensure that the front and rear wheels are correctly
aligned.
 Drive chain slack a: Standard: 20 – 30 mm (0.8 – 1.2 in)
• After adjusting the drive chain, tighten the axle nut 1 to the
specified torque.
 Rear axle nut: 65 N·m (6.5 kgf-m, 47.0 lbf-ft)
• Recheck the drive chain slack a after tightening the axle nut
1.
CLEANING AND LUBRICATING
• Remove dirt and dust from the drive chain. Be careful not to
damage the seal ring.
• Clean the drive chain with a sealed drive chain cleaner, or
water and neutral detergent.
Cleaning the drive chain improperly can damage seal
rings and ruin the drive chain.
• Do not use a volatile solvent such as paint thinner,
kerosene and gasoline.
• Do not use high pressure cleaner to clean the drive
chain.
• Do not use wire brush to clean the drive chain.
• Use a soft brush to clean the drive chain. Be careful not to damage the
seal ring even though using a soft brush.
• Wipe off water and neutral detergent.
• Lubricate with a motorcycle sealed drive chain lubricant or high viscosity oil.
Some drive chain lubricant contains solvents and additives which could damage the seal
rings in the drive chain.
Use sealed drive chain lubricant which is specifically intended for use with sealed drive
chains.
• Lubricate both front and back plates of the drive chain.
• Wipe off excess lubricant after lubricating all around of the drive chain.
NOTE:
The standard drive chain is DID520VF. Suzuki recommends to
use this standard drive chain as a replacement.