F115 high rpm squeal

[bwh]

I have a 2006 F115 at high rpm it makes a squeal or whistle noise.I would appreciate any help

[Ken]

bwh,
This type of noise on the Yamaha 4-strokes has been discussed quite a bit on another forum where I am a member.
Seems like it could be pulley/belt noise or also the drive shaft rubbing against a rubber boot at the bottom of the engine block.
Go to www.maverickboats.com and do a search on the 4-stroke. Use search words like "4-stroke squeal" and the like.
Good luck [img]smile.gif[/img] ,
Ken K