2022 Mercury 90hp 300hr Service

[Marley]

Hi Guys

I am going to do my first 300 hour service on my 2022 90 hp Mercury 4 stroke over the Christmas break. I have always done my own outboard maintenance but it has been on old 2 strokes. This is my first new motor.

I was wondering if it is worth buying a service manual to get the correct tourqe for bolts etc. or if online videos are good enough.

Also any tips or tricks would be appreciated.

Thanks

 

[noluck]

i always buy a factory manual for the new engine

 

[Marley]

i always buy a factory manual for the new engine

That’s what I was thinking. I am just being cheap as the shipping is super expensive. Does anyone know of a Canadian distributor for Merc manuals. I just found the link on their US site.

 

[scott craven]

If it's just basic maintenance, oil, gear lube, plugs etc.
You're probably ok without manual

 

[Marley]

If it's just basic maintenance, oil, gear lube plugs etc.
You're probably ok without manual

It’s oil, plugs, thermostat, impeller

 

[Pewpster]

Check ebay, there are sellers that have pdf/CD versions of all the Merc factory service manuals for pretty cheap.

 

[scott craven]

YouTube will show you how....

It’s oil, plugs, thermostat, impeller

 

[Aquaholic]

I think most of the torque specifications for the basic maintenance items you describe are in the owners manual, and if you buy the mercury kits/items, the torque settings might be in there too. Is the fuel filter not also part of the 300 hour? I might not do mine because I have the Racor set up before it.

 

[abl]

Check ebay, there are sellers that have pdf/CD versions of all the Merc factory service manuals for pretty cheap.

I was able to download a complete maintenance manual for my tohatsu

 

[Marley]

I think most of the torque specifications for the basic maintenance items you describe are in the owners manual, and if you buy the mercury kits/items, the torque settings might be in there too. Is the fuel filter not also part of the 300 hour? I might not do mine because I have the Racor set up before it.

Yes correct. I need to replace the inline filter as well.

 

[Marley]

I was able to download a complete maintenance manual for my tohatsu

I have looked around online but have not been able to find one.

 

[One More]

Hi Guys

I am going to do my first 300 hour service on my 2022 90 hp Mercury 4 stroke over the Christmas break. I have always done my own outboard maintenance but it has been on old 2 strokes. This is my first new motor.

I was wondering if it is worth buying a service manual to get the correct tourqe for bolts etc. or if online videos are good enough.

Also any tips or tricks would be appreciated.

Thanks

Is it still under warranty? I believe you need to take it to an authorized shop for the 300hr service to not void it

 

[Marley]

Is it still under warranty? I believe you need to take it to an authorized shop for the 300hr service to not void it

Good point I should check that.