Yamaha Z250D Service-Handbuch - Seite 20

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Power unit mounting bolts

Bolts coated with a sealing agent have been adopted to provide a sealing function to the bolts. The

sealing agent secures the axial force of the bolts after they are tightened to the specified torque,

thus preventing the bolts from coming loose. The sealing agent also helps prevent the bolts from

sticking if salt water enters into the thread holes and crystallizes.

Also, the bolts can be removed even if corroded particles have collected in and choked the bolt

holes because the sealing agent also acts as an insulator. As a result, servicing such as removing

the power unit has been made easy.

NOTE:

Clean the bolt surface, and then apply LOCTITE 572 to the bolt to act as a sealing agent when reus-

ing the power unit mounting bolts.

1 Sealing agent coating

2 Bolt

3 Cylinder block

4 Sealing agent

5 Upper case

6 Corroded particles

60V3E11

Features and benefits

È Power unit mounting bolt

É Bolt hole description

S60V1230

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