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D 4
331098/1098S - M.Y. 2007 - edition 00
Use and maintenance
Adjusting the chain tension
Move the motorcycle slowly until you find the point at which the upper section of the chain is most taut.
Place the motorcycle on its sidestand.
Push the chain upwards with one finger in correspondence with the mid point of the swingarm (see label).
The lower run of the chain should deflect by approximately 33÷35 mm.
To adjust the tension, proceed as follows:
Slacken off the two clamp bolts (1) that secure the rear wheel hub to the swingarm.
Apply the pin wrench part no. 88713.1038, inserting the pin in a notch on the eccentric hub (2).
Rotate the eccentric hub (2) to obtain the correct chain tension.
Rotate the hub anti-clockwise to tighten the chain or clockwise to slacken it (as viewed from left-hand side of the bike).
Important
An incorrectly tensioned chain will lead to accelerated wear of the transmission components.
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?÷ ? mm
1
2