This manual has been prepared by Yamaha primarily for use by Yamaha dealers and their
trained mechanics when performing maintenance procedures and repairs to Yamaha equip-
ment. It has been written to suit the needs of persons who have a basic understanding of the
mechanical and electrical concepts and procedures inherent in the work, for without such
knowledge attempted repairs or service to the equipment could render it unsafe or unfit for
use.
Because Yamaha has a policy of continuously improving its products, models may differ in
detail from the descriptions and illustrations given in this publication. Use only the latest edi-
tion of this manual. Authorized Yamaha dealers are notified periodically of modifications and
significant changes in specifications and procedures, and these are incorporated in succes-
sive editions of this manual.
NOTICE
25BMH, 30HMH
SERVICE MANUAL
©2000 Yamaha Motor Co., Ltd.
1st Edition, October 2000
All rights reserved. Any reprinting or
unauthorized use without the written
permission of Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan
E