Suzuki TU250X Service Manual page 52

• Remove the engine sprocket cover B.
• Remove the PCV hose C.
• Flatten the tab of lock washer D.
• Remove the engine sprocket nut E and lock washer D.
NOTE:
When loosening the engine sprocket nut E, depress the rear
brake pedal.
• Loosen the rear axle nut F.
• Loosen the both chain adjuster lock-nuts G.
• Loosen the both chain adjuster bolts H.
• Push the rear wheel forward and make sure that the drive
chain has enough slack.
• Remove the engine sprocket I.
ENGINE 3-5