Oh no!

[Making waves]

Hello all! This site is Great! I did not see an introduction section, so please forgive me if i missed it! I am very new to boating and just made my fisrt purchase about two weeks ago. I purchased a pre owned, one owner Crest pontoon with 2001 75 hp Evinrude 2 stroke with only 299 hours on it. The motor had been serviced right before I bought it and runs great. I have had it on the water 3 times and sadly it is time to start getting ready to put it up for the winter here in NC USA.

This afternoon while getting everything set up for winter, I had the boat running at an idle for about 15 minutes with the muffs and water on to the motor and had stepped around to the back of the boat to start the fogging and my son throttled the motor wide open till i could back back on the boat and shut it down. The motor tacked over 7k rpm. I shut the motor down and let it sit for a few minutes and was able to crank the motor with no problems, idle, and the motor ran smoothly from there on out.

Now the question after the long intro. Does anyone think that damage could have occured during this time? It does not appear to have been damaged at this time.

Thanks,
Making waves

 

[j_johnson33]

Re: Oh no!

I bet your heart rate hit 7000 RPM's as well!!!!!
It's never good to run the RPM's that high out of the water and on the muffs.
I'm no expert but if it was not too long ( a few seconds) and it start up and ran it should be OK.
You go to watch them young uns they willl scare you at times!!!!!!!!!!

 

[Making waves]

Re: Oh no!

Heart hit 14 k and........ well lets just say the boy (10) is not going to be doing what he wants for about two weeks. I hope that no damage occured!

 

[metriccrescentwrench]

Re: Oh no!

I'm nowhere near the expert of a few of these guys on iboats, but I'm betting your engine is ok. 2 stroke engines don't have a valve train, timing chains, and all that other stuff that 4 stroke engines do, so there's a lot less rotating mass. I used to race go-carts, I ran a McColluh (chain-saw based) engine and would routinely rev it to over 18,000 rpms. Outboard race boats run over 7000 rpms for entire races with no ill effect.

 

[Haffiman]

Re: Oh no!

A 75 FICHT at 7000 RPM is about the rpm they are the most happy!!!
At least much better than 4500 at max throttle under load.
However I would advice to have the impeller changed.
If running on muffs and not enough water it may have burned.

 

[5150abf]

Re: Oh no!

If it still starts and does every thing else it should do you are probably okay, I think the problem there is launching a rod thorugh the block which you would notice right away.

I had mine run away one day adn it is really scary, you are just waiting for the crunch, that was quite awhile ago and everthing is still fine.