WOT when outboard is not on the water ok?

[ezmobee]

Re: WOT when outboard is not on the water ok?

Revving an outboard, 2 or 4 stroke, with no load tells you nothing useful. Many will sound great with half of the cylinders dead.

Almost all outboards run like a champ in the driveway

 

[sutor623]

Re: WOT when outboard is not on the water ok?

Almost all outboards run like a champ in the driveway

Hahaha, you sure are right about that! I have found this out the hard way on several occasions!

 

[Texasmark]

Re: WOT when outboard is not on the water ok?

i understand... ok.

the engine has a rev limiter when in neutral. so you have to put it in forward gear - then , standing on muffs, push the lever on the table and leave it there. please report how the engine ( or the rod ) came "out of the hole" . :facepalm:

You are cute. RE-read what I said. What I said was that just because you could goose it and it would take throttle doesn't mean it will do a good hole shot OBVIOUSLY once you were back in the water. But I also implied that conversely, if it won't take a goose in the driveway, it surely won't do a hole shot " once you have it back in the water". Grin

Mark

 

[Sea Rider]

Re: WOT when outboard is not on the water ok?

Don't run the motor on the built-in hose attachment, either. Flush with the motor off. Otherwise you fry your impeller.

Just for curiosity, do you guys need to have state/municipality minimum water psi at the faucet as to run built in hose attachments with engine off ? Have been runing engines for many years with engine hose attachments with engine on at idle speed with no problem whatsoever at all, we are not required to have a minimum psi on our water system unless you want to buy a hidrophneumatic equipment. Assume with a high psi water pressure thermo will eventually open up by itself, with poor pressure not in a life time. Water always finds its way throughout the entire engine's water passages, including water pipe & impeller housing...

Happy Boating

 

[Outsider]

Re: WOT when outboard is not on the water ok?

Have been runing engines for many years with engine hose attachments with engine on at idle speed with no problem whatsoever at all,

I think most would suggest doing it the way the manufacturer suggests, and I don't know of any that suggest running the motor using the flushing attachment. Maybe your luck will hold or the manufacturer will change the recommendation ...

 

[Mi duckdown]

Re: WOT when outboard is not on the water ok?

What outsider posted. Don't run the motor on the flusher. Only on the muffs.

 

[Sea Rider]

Re: WOT when outboard is not on the water ok?

I don't know of any that suggest running the motor using the flushing attachment.

That's because usually no one reads entirely the owners manual and that issue is clealy stated under cleaning the engine, some portable Evis and Tohatsu ranging from 2.5 to 40 HP must be flushed with muffs or hose adapter with engine on at idle, a matter to check your brand engine...

Happy Boating

 

[jdlough]

Re: WOT when outboard is not on the water ok?

That's because usually no one reads entirely the owners manual and that issue is clealy stated under cleaning the engine, some portable Evis and Tohatsu ranging from 2.5 to 40 HP must be flushed with muffs or hose adapter with engine on at idle, a matter to check your brand engine...

My Johnson 175 manual also says to attach the hose to the flushing attachment, and run the motor at idle....

[FONT=&quot]1) [/FONT][FONT=&quot]Place the engine in vertical position in a well ventilated[/FONT]
[FONT=&quot]area with good drainage.[/FONT]
[FONT=&quot]2) [/FONT][FONT=&quot]Remove the plug from the flushing port.[/FONT]
[FONT=&quot]3) [/FONT][FONT=&quot]Install flushing device (if needed) and garden[/FONT]
[FONT=&quot]hose.[/FONT]
[FONT=&quot]4) [/FONT][FONT=&quot]Place the remote control lever in NEUTRAL[/FONT]
[FONT=&quot]with the propeller removed.[/FONT]
[FONT=&quot]5) [/FONT][FONT=&quot]Start the water — keep pressure between 20[/FONT]
[FONT=&quot]to 40 psi (140 to 300 kPa).[/FONT]
[FONT=&quot]6) [/FONT][FONT=&quot]Start the engine — [/FONT][FONT=&quot]run it at idle only [/FONT][FONT=&quot]and[/FONT]
[FONT=&quot]flush it for at least five minutes.[/FONT]
[FONT=&quot]7) [/FONT][FONT=&quot]Shut OFF the engine, remove the flusher (if[/FONT]
[FONT=&quot]used), and install the plug. If the plug is also[/FONT]
[FONT=&quot]the water pump indicator, turn it so the water[/FONT]
[FONT=&quot]streams out to the side, where it can be seen[/FONT]
[FONT=&quot]easily from the helm.[/FONT]

 

[Home Cookin']

Re: WOT when outboard is not on the water ok?

I think most would suggest doing it the way the manufacturer suggests, and I don't know of any that suggest running the motor using the flushing attachment. Maybe your luck will hold or the manufacturer will change the recommendation ...

or change the motor set up. The attached flusher is a relatively new feature, so it stands to reason that while the earlier ones were not to be used with the motor running, that later ones would be.
And i know lots of people who didn't know that the Yamaha flusher is for "engine off" and ran it anyway with no apparent ill effects. I suspect that enough water runs down to the impeller to keep it wet enough.

Of course, running the motor on the flusher has nothing to do with the original question WRT running at WOT.