Servicing Yamaha 4-strokes guide/help/advie

Willbrooksy · 01 March 2009, 16:42

Hi everyone,

I've been asked to service a Yamaha F80 4 stroke outboard and would like a guide!

I am mechanically minded and now my stuff when it comes to boats and outboards but i've never serviced one and since its not mine - I dont want to get it wrong.

Thanks in advanced

Willbrooksy · 01 March 2009, 16:52

Or anyone got a pdf version of the manual ?

I would also like to apologise for the spelling of 'now' i meant 'know'!

codprawn · 01 March 2009, 19:23

Yamaha are great - let you download manuals free!!!

http://www.yamaha-motor.com/outboard...d_manuals.aspx

Willbrooksy · 01 March 2009, 21:20

Ur a better man than me.... I spent about 15mins on the yamaha site tryin to find that and all I could get was the flamin brochure lol.

Next question is which manual is the right one ?

As ive said previously, its not my engine and the engine isnt near me so cant get serial number etc. and the person who asked me to service it doesnt have a clue what year it is or for that matter the HP (its the family's mother im talking with).

But, Its a Four-stroke 80hp outboard and cant be more that 4 years old but when i scroll though the years i cant see a F80 anywhere ?

Also, Any proffesional marine engineers out there who have advice or a list of things to check/change/alter in the mean time !

Thanks again in advance !

codprawn · 01 March 2009, 23:09

http://www.yamaha-motor.com/assets/s...-04-73_671.pdf

Ok it's from 2002 but I bet it's the same engine - check to make sure.

Change oil - gear oil and impeller. Check/clean/adjust/change spark plugs.

probably about it. Oh and fuel filters of course. Check anodes.

Willbrooksy · 02 March 2009, 21:00

Ok, whats involved in changin the impeller ?

Other comment ive received mentions changing timing belt !

Downhilldai · 02 March 2009, 21:28

Quote:

Originally Posted by Willbrooksy

I am mechanically minded and now my stuff when it comes to boats and outboards ...

Quote:

Originally Posted by Willbrooksy

Ok, whats involved in changin the impeller ?

Poly · 02 March 2009, 21:36

search the forum for impeller change Richard B wrote a comprehensive guide which was based on a Yamaha so should give you a good idea

Tim M · 02 March 2009, 22:30

Don't be daunted. Replacing an impeller is easy with the right tools

outboardtech · 02 March 2009, 22:36

what year is that engine ?

Willbrooksy · 03 March 2009, 07:51

ok, il have a look for the impreller thread

Willbrooksy · 03 March 2009, 08:09

erm, 2002 onwards I think, Its a fourstroke.

just had a look at the impeller guide - does any body know where I can get the impeller kit and Gear lube from ?

Nos4r2 · 03 March 2009, 16:01

Quote:

Originally Posted by Willbrooksy

erm, 2002 onwards I think, Its a fourstroke.

just had a look at the impeller guide - does any body know where I can get the impeller kit and Gear lube from ?

A Yamaha outboard dealer.
No insult intended but if you don't know how what to do (and you obviously don't) practice on your own engine first. If you screw up a full service on a 4 stroke, it can trash the motor before the crank has completed a revolution.

JSP · 03 March 2009, 16:48

http://rib.net/forum/showthread.php?t=5840
I've checked mine but not replaced it. Finding the above thread took away any head pain that could have happened. Needs two people in my opinion.

jyasaki · 03 March 2009, 16:59

Quote:

Originally Posted by codprawn

Yamaha are great - let you download manuals free!!!

http://www.yamaha-motor.com/outboard...d_manuals.aspx

Note that these manuals are the Owners Manuals; not the Service Manuals. They tell you what needs to be done, but do not tell you how to do it.

The service manuals are available at cost (paper form only, as far as I know) from Yamaha.

jky

JSP · 03 March 2009, 17:08

You can get the manuals off of that flebay thing on them there new fangled CD's.
I got one for mine but mines too old.

outboardtech · 03 March 2009, 19:03

let me know and I will do it for you . cheers