2 stroke or 4 stroke

[dean070]

I am saving for a boat and am trying to make the right decisions. if anyone can shed some light on what the difference in a 2 stroke and a 4 stroke is i would appreciate it

[Nessie Hunter]

2 stroke is designed to have OIL injected or oil Mixed with the gas, (no oil sump to lubricate, 2 stroke oil is expensive also), oil is used in the combustion chamber to lubricate the engine parts, and is used up rapidly like fuel..
High pollution in exhaust (except for newer model DIRECT INJECTION Models). Higher RPM and more power at lower RPM's..
Not allowed on a few Lakes due to high pollution level (DVL, Skinner)

4 Stroke is similar to car type engine, Oil sump for lubrication, Fuel is not mixed in any way, oil is not used up by running engine, is changed at regular intervals (like a car engine)...
Much less Pollution, less power at lower RPM's. Very Quiet, Better MPG..
4 Stroke is more desired for above reasons and normally cost more also (supply/demand??)...

If you can power with a 4 stroke you will be much happier. Sometimes cost per Horsepower prohibits it.

No mixing oil and fuel all the time. Very quiet. better MPG.. almost no/or much less pollution........& #46;.



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[dean070]

Thanks

I knew i could count on you to educate me on the differences. Definitley will be going for the 4 stroke.

[sansou]

2 stroke is designed to have OIL injected or oil Mixed with the gas, (no oil sump to lubricate, 2 stroke oil is expensive also), oil is used in the combustion chamber to lubricate the engine parts, and is used up rapidly like fuel..
High pollution in exhaust (except for newer model DIRECT INJECTION Models). Higher RPM and more power at lower RPM's..
Not allowed on a few Lakes due to high pollution level (DVL, Skinner)

4 Stroke is similar to car type engine, Oil sump for lubrication, Fuel is not mixed in any way, oil is not used up by running engine, is changed at regular intervals (like a car engine)...
Much less Pollution, less power at lower RPM's. Very Quiet, Better MPG..
4 Stroke is more desired for above reasons and normally cost more also (supply/demand??)...

If you can power with a 4 stroke you will be much happier. Sometimes cost per Horsepower prohibits it.

No mixing oil and fuel all the time. Very quiet. better MPG.. almost no/or much less pollution........& #46;.



.

Mind you I'm no gear head, but I do know this from personal experience, and I feel you are biased a little toward 4 strokes:

- 2 strokes are simpler engines, and as a result, repairs and repair costs reflect this. 4 strokes are actually very complicated feats of engineering, and require far more maintenance. I know this from having to repower my boat (17ft deep V Tracker, now with a 60ho Johnsion 2 stroke) At the 60hp level and lower, I would stick to a 2 stroke unless you need to be on DVL (or similar lakes), especially if you are going into the ocean.

- The big downside for big HP 2 strokes is that they are not as fuel efficient, and if you are a big slow troller (e.g. targeting trout), you will find they tend to foul up much quicker.

- the fule injected 2 strokes should be given very serious consideration if you are powering 90hp or less. The big downside there is they ain't cheap!

Just wanted to add my 2 cents of personal ecperience on this.

[ghetto dad]

good lord im confused!!!! :D

[CAPT'N]

Oh Yea right Ghetto, and I am supposed to belief that this is something new for you ! ?

:nutkick: :rofl: :rofl: :rofl: :finger: :banana: :banana:

Peace......... .........

[MarkyMark]

good info, good points from all although there is something else to consider especially if you are gonna buy a small outboard .

..4 stroke engines are heavier as compared to 2 strokes

[Headhunter]

Listen to Nessie.....he knows about strokes....... :lol:

[POSTAL]

2 stroke all the way ,Im going on 17 wrenching years exp.More power ,faster excelleration .way less weight ,way less maint ,cheaper overall,cheaper parts and to fix ,longer life,Newer 2 strokes allmost match emissions of 4 strk esp evinrude e tecs.The e tecs are used on allmost all law boats even on lake taho that is a 4 stroke lake only.If mixing oil is your determining factor thats just dumb ,2 stroke oil is cheap as heck go to wally mart and get gallons for a few bucks.I will send you a video on the comparrisons if you pm me your address and you will not believe what you see .2 stroke all the way in my book 8)The only thing going for 4 strokes is quietness and mpg but who wants that if performance is bad and you dont get the power or enjoyment out of your boat you should have esp with the smaller motors

[muskyman]

If I were you ; I would get a two stroke direct injected. Just as clean running as a 4-stroke, same or better fuel economy and it weighs less. Like the dude in the previous post said, newer 2 strokes that are direct injected kick butt dude. I have a 90hp 2 stroke direct injected TLDI Tohatsu. And it plains runs like nothing I have ever seen. I use the crap outta my engine. I have owned it for 4 years now, and not one problem. I change the lower unit every year and put new spark plugs in her 2wice a year - I fish alot. I have trailered my boat all over the country and everyone says the same thing - " do you like that tohatsu " ? Cause no one has ever heard of them. I would never buy anything else. And my next engine will be a tohatsu too.