You better be quick, carburreted 2 strokes are being phased out. You can still buy and sell 2nd hand numbers, but the new one on the shelf are the last.
But it's not only outboards, mowers, chainsaws, whacker packers, brushcutters etc are all included
You are aware that from July 1 you will not be able to buy new two strokes that do not comply with emission standards ie.no carbys.
Four better , no fuel mixing , quiet , not that heavier than TT
Select to expand quoteBananabender said..
You are aware that from July 1 you will not be able to buy new two strokes that do not comply with emission standards ie.no carbys.
I believe the ban has been pushed back another 12 months. I can't imagine any if the major manufacturers importing any more.
I prefer 2 stroke as they are lighter and I find the torque delivery more useable.
For a small sub 10hp tender outboard, you'd be an idiot not to go 2 stroke. But any substantive motor, these days its 4 stroke, and for good reason, they work great, no moving oil slick.
Neptune Marine in NSW ran out of 5 and 6 HP two strokes last October.
I believe the motors were identical, just the carby"s different?
Has any one tried to put the 6 on their 4 engine yet?
If I follow all the two stroke rules, maybe my two will be worth more than what I paid for them.
Britain got rid of 2 stroke outboards years ago. They now have a strong demand for secondhand small 2 stroke outboards. Same thing will happen here. I have several Victa 160 two stroke motors I'm hoarding. Getting hard to find now. The recycle shops seem to be full of Briggs and Stratten 4 strokes.
It may be worth considering to lay in a stock of 2 stroke oil as it will possibly become more difficult to source over time.
I had an old Evinrude 15hp 2stroke for years , never really did any maintenance,sank it ,and still it went! Now have a flash Suzuki four stroke 15hp and like it for a number of reasons, but you got to maintain these puppies as they got oil and filters and they don't like not changing the filter !
Bought 3 non running seagulls last year @ 50 squid each,
Now 2.5 are running, even the one with cracks in the block,
Alas ( not the friendly sheila around the corner ) one gearbox refuses to play nice,
I might chuck the others on ebay for $800...like some l've seen,
Or not...
Was about to chuck on nature strip for rubbish collection 5hp Mercury long shaft . Starts on three pulls every time.
Might just keep it.
Select to expand quoteLooseChange said..
It may be worth considering to lay in a stock of 2 stroke oil as it will possibly become more difficult to source over time.
although it is not ideal you could always use regular motor oil. Growing up, we used plenty of that in our quads without any issues.
Select to expand quoteBananabender said..
Was about to chuck on nature strip for rubbish collection 5hp Mercury long shaft . Starts on three pulls every time.
Might just keep it.
Keep it. Even if only to toss the engine and install an electric motor. I will be keeping am eye out for old 2hp Evenrudes for an electric conversion down the track.
Now that the new fuel injected two stroke large outboards have turned out so well there will always be a demand for TW3 outboard oil.
Select to expand quoteRamona said..
Now that the new fuel injected two stroke large outboards have turned out so well there will always be a demand for TW3 outboard oil.
Only for those owners that choose to run TC-W3 in their motors and most owners that I know that have big outboards run the manufacturers own brew oil. To run TC-W3 requires an adjustment on the ECU so as to inject twice as much and to most people it's just easier to keep using what their brand recommends.
Select to expand quoteLooseChange said..Ramona said..
Now that the new fuel injected two stroke large outboards have turned out so well there will always be a demand for TW3 outboard oil.
Only for those owners that choose to run TC-W3 in their motors and most owners that I know that have big outboards run the manufacturers own brew oil. To run TC-W3 requires an adjustment on the ECU so as to inject twice as much and to most people it's just easier to keep using what their brand recommends.
There is an outboard manufacturer who makes their own oil! That stuff would be good enough for an old Evenrude anyway.
Select to expand quotetired said..
How much is that stuff again?
About the same price as Dom Perignon is what they are asking.
I use to not worry about putting too much oil in the fuel, until I saw the unburnt oil come out the exhaust and leave an oil slick. I now realise how polluting 2 strokes are, and would happily put up with a heavier and more complicated outboard. I can see why we are moving on.
Off topic - but there was a Chemist over on TSP who had a wealth of information and experience one area was environmental. His considered opinion was that 2 st should not be banned as what oil they do produce is eaten by bacteria and that by feeding these bacteria the environment will cope better with a larger more catastrophic spill.
Select to expand quoteAUS126 said..
I use to not worry about putting too much oil in the fuel, until I saw the unburnt oil come out the exhaust and leave an oil slick. I now realise how polluting 2 strokes are, and would happily put up with a heavier and more complicated outboard. I can see why we are moving on.
Are you saying that oill was running out of the exhaust?
Do we agreed we should only see blue smoke when starting up the motor?
There seems to be a misconception that 'more oil is better than less'
Select to expand quoteBundeenabuoy said..AUS126 said..
I use to not worry about putting too much oil in the fuel, until I saw the unburnt oil come out the exhaust and leave an oil slick. I now realise how polluting 2 strokes are, and would happily put up with a heavier and more complicated outboard. I can see why we are moving on.
Are you saying that oill was running out of the exhaust?
Yes, unburnt oil goes out exhaust. I now tend to mix closer to 70 :1 instead of 50:1. I've been told you can get away with 100:1. Wouldn't want to have a warranty claim though.
Select to expand quoteAUS126 said..Bundeenabuoy said..AUS126 said..
I use to not worry about putting too much oil in the fuel, until I saw the unburnt oil come out the exhaust and leave an oil slick. I now realise how polluting 2 strokes are, and would happily put up with a heavier and more complicated outboard. I can see why we are moving on.
Are you saying that oill was running out of the exhaust?
Yes, unburnt oil goes out exhaust. I now tend to mix closer to 70 :1 instead of 50:1. I've been told you can get away with 100:1. Wouldn't want to have a warranty claim though.
You might be getting away without seizing the engine mixing the oil ratio leaner but in reality your just wearing the motor out faster.
Bought a mercury 9.9 two stroke for the tender last week. They are made by Tohatsu just branded differently as the US bans two strokes. At 26kg they are the lightest I could buy. I don't want to have to remove the motor on the davits.
Select to expand quoteJolene said..AUS126 said..Bundeenabuoy said..AUS126 said..
I use to not worry about putting too much oil in the fuel, until I saw the unburnt oil come out the exhaust and leave an oil slick. I now realise how polluting 2 strokes are, and would happily put up with a heavier and more complicated outboard. I can see why we are moving on.
Are you saying that oill was running out of the exhaust?
Yes, unburnt oil goes out exhaust. I now tend to mix closer to 70 :1 instead of 50:1. I've been told you can get away with 100:1. Wouldn't want to have a warranty claim though.
You might be getting away without seizing the engine mixing oil ratio leaner but in reality your just wearing the motor out faster.
The fuel oil ratio is also affected by the the carby air mix, for instance to get more revs out of a two stroke you can lean it off ( we all know how they go like clappers as the fuel runs out, that's owing to the leaning of of fuel air mix ) but of course leaning the air fuel mix to get more revs means less lubricating oil for the engine, that is unless you increase the oil to fuel ratio to compensate.
Proably has no bearing on the average outboard, but I've used this method to squeeze more go out of every 2/ I've ever owned since I was put onto that theory in the pits at Liverpool speed way as a lad, and all of my bikes, mowers, brushcutters, chainsaws easily lasted as long if not longer that the the equivalent unit in other hands.
Golden rule- dedicated container, oil 1st ie: no oil in the container, no fuel in the container ever !
Select to expand quotewoko said..Jolene said..AUS126 said..Bundeenabuoy said..AUS126 said..
I use to not worry about putting too much oil in the fuel, until I saw the unburnt oil come out the exhaust and leave an oil slick. I now realise how polluting 2 strokes are, and would happily put up with a heavier and more complicated outboard. I can see why we are moving on.
Are you saying that oill was running out of the exhaust?
Yes, unburnt oil goes out exhaust. I now tend to mix closer to 70 :1 instead of 50:1. I've been told you can get away with 100:1. Wouldn't want to have a warranty claim though.
You might be getting away without seizing the engine mixing oil ratio leaner but in reality your just wearing the motor out faster.
The fuel oil ratio is also affected by the the carby air mix, for instance to get more revs out of a two stroke you can lean it off ( we all know how they go like clappers as the fuel runs out, that's owing to the leaning of of fuel air mix ) but of course leaning the air fuel mix to get more revs means less lubricating oil for the engine, that is unless you increase the oil to fuel ratio to compensate.
Proably has no bearing on the average outboard, but I've used this method to squeeze more go out of every 2/ I've ever owned since I was put onto that theory in the pits at Liverpool speed way as a lad, and all of my bikes, mowers, brushcutters, chainsaws easily lasted as long if not longer that the the equivalent unit in other hands.
Golden rule- dedicated container, oil 1st ie: no oil in the container, no fuel in the container ever !
Thanks Woko,
That's really interesting, good info!
Select to expand quoteAUS126 said..Bundeenabuoy said..AUS126 said..
I use to not worry about putting too much oil in the fuel, until I saw the unburnt oil come out the exhaust and leave an oil slick. I now realise how polluting 2 strokes are, and would happily put up with a heavier and more complicated outboard. I can see why we are moving on.
Are you saying that oill was running out of the exhaust?
Yes, unburnt oil goes out exhaust. I now tend to mix closer to 70 :1 instead of 50:1. I've been told you can get away with 100:1. Wouldn't want to have a warranty claim though.
One part of the 2 cycle phase is the bit where the piston travels toward the bottom of the stroke compressing the airfuel mixture in the crankcase. This pressurised mixture is released into the cylinder via ports and some of it makes its way out through the exhaust port flushing the spent combustion gases out of the cylinder before the piston(on its way back up) closes off the exhaust.
Its perfectly natural to have an unburnt mixture in the exhaust.
On 2 stroke race engines , by designing an exhaust that utilizes sound and pressure waves created when the exhaust port cracks open, this unburnt mixture can be forced back into the cylinder (by sound/pressure waves), effectively raising the compression ratio which can result in a massive boost in power.
My 3 hp Yamaha is 35 years old, has not had its first service, I did replace the pump impeller and gear box oil last year because I thought they were getting a bit old. I never run the carby out before storage, fuel can sit in tank up to 12 months and motor not get used for 6 months. If It hasn't been started for a couple of months it will take only a couple of pulls and once started, one slow pull will start it every time. The only thing I do is flush It with Salt X before storing it. I just wish I had bought a new one before they stopped selling them. It's starting to show it age so I might give it a spray paint and it should be good for another 35 years.
