yamaha engine 9.9hp

[jamie86]

hello! ive just got a yamaha engine 9.9hp/7.3kw, it needs restoring and im trying to get hold of a manual for it, so if you could help please! many thanks.

[pedcab]

Hi Jamie

That kind of information (except for vintage equipment) is normally available through the respective manufacturer's sites, which is always where one should try to look first.

Here you may find what you need:

Outboard Owners Manuals

And here you'll find some more useful informations on the subject of repairing and maintaining your engine:

http://www.yamaha-motor.com/outboard...nce_Charts.pdf

http://www.yamaha-motor.com/outboard...ce_matters.pdf

Hope to have been of any help!

Take care

Regards

Pedro Cabral, from Portugal

[WouldaShoulda]

So, Is replacing the prop as "simple" as it looks in the manual??

[MARC2012]

I have one of these yamma yamma jap crap things & there is nothing simple on them.marc

[WouldaShoulda]

That's what I thought!!

Do you know if any special tools are required??

The manual makes it appear that a simple socket wrench will do.

[WouldaShoulda]

Socket wrench and needle nose for the cotter pin worked just fine and it came right off.

Replacing it isn't quite so simple.

I thought EVERYONE would carry it.

[sawingknots]

changing the prop is a piece of cake,but you might want to go ahead and replace the water pump impellor too,also not hard and check the lower unit oil lever and look for water,milky oil

[WouldaShoulda]

I can't stand the "owner's manual" it doesn't even tell me where the impellor or how to access it.

[KindOfBlue]

You have to take the lower unit off to access the impeller. It's a lot less scary than it seems. Remove the linkage, undo a few bolts and it slides right off. There maybe a bolt under the little directional fin or zinc that sits behind the prop.