[Paul Mills]

Greetings team.

I have a 90TLRD 2 stroke. 2004 model. It has a flush port on it for connecting to a hose.

Just wondering if this is standard or aftermarket and perhaps what is the best way to use it.

Pictures below. Appears to flush thru the port into the head.

 

[Marsh Pirate]

Standard. Hook to hose and let her flush, don't start engine.

 

[Smackdaddy53]

You can run the motor with it hooked up to flush it and not do any harm. I do it all the time, same motor. I let it run at 2000rpm for 45 minutes a couple of times to burn some fuel through it.

 

[State fish rob]

Manual says not to run w/o muffs

 

[Smackdaddy53]

Manual says not to run w/o muffs

It doesn’t hurt it, the water pump still gets water as does the power head. Manuals aren’t gospel.

 

[State fish rob]

roger that. I’m not smart enough to pick and choose.

 

[Surffshr]

This makes me miss my old Yamaha so much, I may just have to start looking for another boat!

 

[Marsh Pirate]

It doesn’t hurt it, the water pump still gets water as does the power head. Manuals aren’t gospel.

Yea, what does Yamaha know outboard motors, away? Stupid Yamaha!

 

[Smackdaddy53]

Yea, what does Yamaha know outboard motors, away? Stupid Yamaha!

Yeah what do I know, I just work on and own three of them and have done many more. First hand experience trumps what you read.

 

[eightwt]

Could you do both using a y on the hose? Just asking?

 

[Marsh Pirate]

I flush my motor using the quick attachment for about 10 minutes and then switch over to the muffs and run it for about 5 minutes more.

 

[Smackdaddy53]

I flush my motor using the quick attachment for about 10 minutes and then switch over to the muffs and run it for about 5 minutes more.

Is that EXACTLY how the Yamaha manual tells you to do it?