2 stroke trolling

[Malcolm]

When i have been trolling for a while with my 20hp Mariner 2 stroke and then get the motor going at speed again, a fair amount of smoke comes out for a little while then it clears.Is this normal for these 2 strokes or is something wrong?

Thanks

Mal

[shamus]

I'm guessing its normal. 2 strokes weren't designed for low revs

[mackmauler]

yeh pretty normal, mercs run on 50-1 that much oil probably doesnt burn off at idle speed plugs get plenty on em then it burns as u speed up

[viperon1982]

Malcolm wrote:

When i have been trolling for a while with my 20hp Mariner 2 stroke and then get the motor going at speed again, a fair amount of smoke comes out for a little while then it clears.Is this normal for these 2 strokes or is something wrong?

Thanks

Mal

2 strokers rule!!! Smoke means power!

Reminds me of my biking days.. me and my RS125 blazing down the highway... zoom zoom zoom! Wherever I go I'd leave a trail of smoke! Classic 2 stroker style! hehe.

If u can smell the oh so sweet scent of 2T, it's all good. Only when u start seeing fire or getting really burnt smells should u worry mate!

[Gazza]

Sorry Viperon smoke don't = power actually the oposite too much smoke means too much oil

as far as outboards go as Mack said the plugs tend to foul up from prolonged low revs usually a bit of a run will clear them absolute worst secnario is you night have to clean em ( very rare)

Gaz

one last thing make sure you have the right mixture to suit your motor

[Cowfish13]

Viperon- You sound just like Michael Caton from the movie \"The Castle\"

[Fisher_90]

Yeh 2 strokes arent really designed for low revs. Some of the Modern ones eg Last 3years are better than say 10-20years ago. Smoke Doesnt Mean Power It means u are mixin your oil wrong. 50:1. What you could do is run 100:1. Our motor was designed to run 100:1 but the mechanic suggested 50:1 Every 10 or so tanks we give it a run at 100:1 though. Dont really know why we always have.

[Gazza]

100:1 :woohoo: the oil added to the fuel on a 2 stroke is to lube the main bearings cylinder walls pistons and gudeon pins not for preformace at all 100:1 is way to lite your lucky it hasn't siezed

Gaz

[Fisher_90]

Ours is designed to run on 100:1. Theirs a sticker their that says 100:1 but we were told to run 50:1 with the occasional run of 100:1

[Malcolm]

Thanks gents. I do mix it at 50:1, I just thought that maybee prolonged trolling may have an adverse effect on the motor.

[ellicat]

Cowfish13 wrote:

Viperon- You sound just like Michael Caton from the movie \"The Castle\"

Haha. Good call Cowfish...great movie...Feel the serenity....

[shamus]

ahh.... the serenity...

[Gazza]

just curious Fisher what breed of motor is it premix or direct injection not doubting you just interested

Gaz

[Fisher_90]

1985 Johnson 25 520-530cc(forget the exact amount). Hehehehe oldie but a goodie. Starts first time everytime, well just about. Can travel about 15km on 8litres.

[Malcolm]

tell him his dreaming

[Fisher_90]

Theirs only been one good rod ever made.... The UGLYSTICK. It can bend right round on itself.

[shortie]

mine runs at 300:1

[Gazza]

It's still going I'm impressed has it had a rebuild you have me curious now lol

Gaz

[ellicat]

PMSL....I was singing \"We're goin' to Bonnydoon, We're goin' to Bonnydoon\" just last week. hahahaha

[shortie]

100:1 is very unusual.

Lawn mower 25:1

Outboard is 50:1

Directed injected 2 stroke up to 300:1

[Fisher_90]

Nope No rebuild and nothing replaced other than the general impellor and it had the thermostat replaced 6moths ago. Its been service every 12months. I will take a pic if i get a chance. My camera has been playing up so will have to use my phone aka. Shit Quality.

[Fisher_90]

Ok i will post them now.

[viperon1982]

haha, michael caton huh? Never watched that though..

Anywayz, I do apologise for my being overzealous! I do know smoke does not necessarily mean power. hehe!

What I meant was relative to 4 strokers which produce zero or little smoke, 2 strokers produce more power with the same displacement, but at the expense of fuel, 2T, parts' life and of coz not to mention extra smoke, to some extent.

[Fisher_90]

Ok sorry for the s**t quality but here goes. [img size=160]http://www.australianfishing.com.au/media/kunena/attachments/legacy/images/DSC00001.JPG

[Fisher_90]

If i make em bigger their blurry so i will leave them small.

[Fisher_90]

:ohmy: [img size=160]http://www.australianfishing.com.au/media/kunena/attachments/legacy/images/DSC00005.JPG

[Fisher_90]

Old girl with the cover off [img size=160]http://www.australianfishing.com.au/media/kunena/attachments/legacy/images/DSC00002.JPG

[shamus]

viperon1982 wrote:

haha, michael caton huh? Never watched that though..

Anywayz, I do apologise for my being overzealous! I do know smoke does not necessarily mean power. hehe!

What I meant was relative to 4 strokers which produce zero or little smoke, 2 strokers produce more power with the same displacement, but at the expense of fuel, 2T, parts' life and of coz not to mention extra smoke, to some extent.

you've never seen 'The Castle'??? don;t go fishing tonight and hire it out instead

[Fisher_90]

Thats UnAustralian if you havn't seen the castle. Its the consititution!

[Gazza]

when we off to Barwon downs lol damm not me must be one tuff little motor

[viperon1982]

Fisher_90 wrote:

Thats UnAustralian if you havn't seen the castle. Its the consititution!

:blush: My humblest apologies.. I'd better go watch it before I even think about applying for permanent residence then! Don't want them rejecting my application! :laugh:

[Dinodadog]

And Viperon make sure you watch it in the pool room. After you watch it you will understand the signifigance

Dino

[Fisher_90]

Dad, Some guys selling an overhead projector. What do we want an overhead projector for.[

Dunno but if it goes cheap why not.

Give him a ring son

Dad he wants $160

Tell Him He's Dreaming!

[Feral]

Yeah she is just oiling up, often the exhaust ports, plugs etc get oiling from sustained low revs.

My newer 6hp johno ('87) is designed for 100 to 1, but I run 50 to 1. She gets a bit smokie if idling along for a while, and needs a bit of a rev to clear her throat If I have been trolling any more than half an hour or so, but its an old motor, I am NOT running 100 to 1! Particularly as my older 6 hp ('85) motor is identical mechanically, only 2 years older, and is recommended for 50 to 1!

[Feral]

Found the Castle to be boring, never got more than about 15 minutes into it.

[Mack_attack]

Feral wrote:

Found the Castle to be boring, never got more than about 15 minutes into it.

Take that back!!

:laugh:

[Feral]

You know, thats what I said to the wife!

[mackmauler]

all the little yammies used to be 100-1 they made a good trolling engine

[Andyc]

in the 80's OMC did change the ratio to 100:1, but then changed it back to 50:1

The reason for the change wasn't performance based, but storage. At 100:1 there wasn't enough oil left on the bearings and cylinder walls, and they would start to rust, unless you ran the motor all day every day. At 50:1, there is enough oil left inside the engine to prevent any parts from starting to rust.

BTW, 80's motor's arn't that old, I've got a 1968 40hp Evinrude, a 1968 18hp Evinrude, a 1973 4hp Evinrude, a 1963 3hp Evinrude, a 1980 4hp Johnson, and a 1972 6hp Johnson (mid restoration). All these motors (except the 6 at the moment) run beautifully.

[Fisher_90]

What do u do with 6 motors?