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Posted

Im not sure how doubling the fuel mix ratio would help break in. The whole purpose is to seal the rings. Just like youre not supposed to run full synthetic in a brand new motor because its too slick.

 

Someone will come along to tell me thats not true I am certain but having much experience with race motors and not one blow by issue I wont run full synthetic day one in any four stroke. Im not certain if it matters in a two stroke but the whole double ratio has me tilting my head.

Posted

Im not sure how doubling the fuel mix ratio would help break in. The whole purpose is to seal the rings. Just like youre not supposed to run full synthetic in a brand new motor because its too slick.

 

Someone will come along to tell me thats not true I am certain but having much experience with race motors and not one blow by issue I wont run full synthetic day one in any four stroke. Im not certain if it matters in a two stroke but the whole double ratio has me tilting my head.

I have no idea why they do it... it's programmed by the motor computer.  Just Mercury's way I guess. 

Posted

Ahh, I hadnt considered the newer motors having a computer to adjust timing, spark....

 

Does this mean there will be an aftermarket system in the future with power commanders allowing you to custom map the engine?

  • Super User
Posted

When I broke in the ELPTO on my last boat I recall having to run1 or 2 tanks with extra oil

  • Super User
Posted

Congratulations on a nice boat Trapper. If more of us followed your example of working and planning ahead to fund a major purchase we would all be better off. I have great respect for anyone who has the discipline to do so. I hope you have many years of fishing with your Dad. Well done.

Posted

Way to go!!  Beautiful boat.  Hope it is a great one for you!! 

Posted

you guys are making me happy I have a four stroke..

I just took my new 175 w/60 merc out yesterday to get the first two hours of break in done on it.  On the merc 60 4 stroke the break in is 1 hour at not more than 3500 with varied throttle settings.  The second hour is not more than 4500 with varied throttle settings plus 1 minute at full throttle in every 10 minute time period.  The next 8 hours is not more than 5 minutes at full throttle...varied throttle settings throughout.  So....10 hours of break in total.  The mechanic at the boat dealer said that it's pretty vital to follow the break in procedure as it's shown in the manual, even though it is rather lengthy.  I think those 2 strokes actually sound easier to deal with on break in. 

I made it through about 1.5 hours of constant running before the cold chased me in.  I will say this though, that little 60 really seemed to wake up once I was able to get it past 3500 and bump full throttle a couple times during the second hour.  I was suprised at how quiet at idle and how easy to start/idle it was.  Then when I got on it....it sounded good and pulled well...felt torquey (my first 4 stroke outboard). 

Based on how my 175 with a 60 on it felt, I bet that 75 is gonna be awesome.  Congrats!

Posted

I just took my new 175 w/60 merc out yesterday to get the first two hours of break in done on it.  On the merc 60 4 stroke the break in is 1 hour at not more than 3500 with varied throttle settings.  The second hour is not more than 4500 with varied throttle settings plus 1 minute at full throttle in every 10 minute time period.  The next 8 hours is not more than 5 minutes at full throttle...varied throttle settings throughout.  So....10 hours of break in total.  The mechanic at the boat dealer said that it's pretty vital to follow the break in procedure as it's shown in the manual, even though it is rather lengthy.  I think those 2 strokes actually sound easier to deal with on break in. 

I made it through about 1.5 hours of constant running before the cold chased me in.  I will say this though, that little 60 really seemed to wake up once I was able to get it past 3500 and bump full throttle a couple times during the second hour.  I was suprised at how quiet at idle and how easy to start/idle it was.  Then when I got on it....it sounded good and pulled well...felt torquey (my first 4 stroke outboard). 

Based on how my 175 with a 60 on it felt, I bet that 75 is gonna be awesome.  Congrats!

but youll never need to add oil to it when you fill up.

Posted

Thanks guys! I'm itching to take it out, good wether coming this week too.

I'm storing it down at my old mans barn, if it was in my garage I'd probably be out there sitting in it while I typed this message!

I got a fish finder with Side Imaging I'm really interested to check it out as well.

I been told to be sure to use something like stabil, to add to the fuel, and it's recommended to use 100% gas. It can handle ethanol but its not recommended.

Posted

Thanks guys! I'm itching to take it out, good wether coming this week too. I'm storing it down at my old mans barn, if it was in my garage I'd probably be out there sitting in it while I typed this message! I got a fish finder with Side Imaging I'm really interested to check it out as well. I been told to be sure to use something like stabil, to add to the fuel, and it's recommended to use 100% gas. It can handle ethanol but its not recommended.

with 100% gas you dont really need stabil, but if its peace of mind then use it. Up here I cant get gas without ethanol unless I drive over 2 hours, so I am forced to use it. Ethanol, like all alcohols, bond with water and actually attract it, which as we all know can cause some serious damage when run through a combustion engine. Most, if not all fuel lines now are able to handle the eating properties of ethanol unlike older motors. Youll be fine running either gas, and if you need to use ethanol enhanced fuel then run stabil and youll be fine.

Posted

but youll never need to add oil to it when you fill up.

Oh I'm not complaining about it at all.  I really like it so far...and I like how easy it starts and how nice it idles...and the fuel mileage...wow.  Almost 2 hours of constant running....2 gallons and that was plowing around for much of it barely on plane.  I'm just saying the break-in is really something else from what my last boat new boat was (98 merc 125 2 stroke).  Of course all this stuff has changed so much since I was last in the "hole in the water" club...pretty much for the better as far as I can tell.

  • Super User
Posted

I've been doing alot of research. Mercury recommends using Quickleen with every fill up on the Opti's to prevent carbon buildup. They also have an ethanol treatment and a fuel stabilizer. I'm going to use the Quickleen on every fill up. I bought a couple bottles of their ethanol treatment, but I'm going to see if I can find something less expensive. As far as stabilizer, I've been using Stabil forever.

Posted

Well, this has been said but I'll say it anyway. Nice boat, and congrats on making some smart decisions when buying it. Very pretty, too.

  • Like 1
  • Super User
Posted

Nice boat, man!  I hope it provides many years of happy memories.

 

Don't know if it's so true anymore but I've found backing off on the throttle (from WOT) a bit will get you almost as much speed with considerably less gas used.

  • 2 months later...
Posted

Hi Trapper, question for you now that the outboard should be broke in. What are you seeing for top speed? Just curious how it compares to the guys running the 60 hp 4 strokes. I've been looking at the same boat and trying to decide if the 15 hp upgrade is worth the extra 100 plus pounds that the motor weighs over the 60 hp. Thanks in advance!

Posted

Wow ... That is an awesome rig. Well done to you. Good luck with it. Be sure to give us all an update after your take out the first time!!!

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