2 stroke in a 4 stroke engine

countrryboy

Well-Known Member
Alright folks.

May sound a silly question.
But will running a 4 stroke engine on 2 stroke long term do any harm?
Even if i mix a leaner mix, say 75:1 instead of the usual 50:1

The reason is i have a steep banking at back off house.
It is bang on 45 degrees in most parts but the odd 50 55 bit about 10m ish down the slope. And quite long
I have been struggling for a while to figure out the easiest way to cut/strim it.
Just a real pita

I done the 2 stroke flymo on a rope but even that wasnae that easy and struggle to get parts for flymo now.

Ive just bought a cheaper radio/remote controlled mower. Generally they say engine can stand 40 to 45 degrees.

I originally hoped i could remount the engine at a different angle to take the worst off ( thought it was a flail instead of a rotary, dangers of buying unseen at auction :lol::banghead: ) but its a direct drive on to the lawnmower blade.
So not an option without some sort of universal joint/gearbox.
So a non starter now

Im worried that having it work right on the limit for a wet sump engine wont be a good thing.
I could over fil the sump oil but thats not always a good thing either
I thought if i used 2 stroke petrol too it, even if a leaner mix might keep thing lubricated.
Im happy if it just costs me a few extra spark plugs better than ot seized engine.
 
Alright folks.

May sound a silly question.
But will running a 4 stroke engine on 2 stroke long term do any harm?
Even if i mix a leaner mix, say 75:1 instead of the usual 50:1

The reason is i have a steep banking at back off house.
It is bang on 45 degrees in most parts but the odd 50 55 bit about 10m ish down the slope. And quite long
I have been struggling for a while to figure out the easiest way to cut/strim it.
Just a real pita

I done the 2 stroke flymo on a rope but even that wasnae that easy and struggle to get parts for flymo now.

Ive just bought a cheaper radio/remote controlled mower. Generally they say engine can stand 40 to 45 degrees.

I originally hoped i could remount the engine at a different angle to take the worst off ( thought it was a flail instead of a rotary, dangers of buying unseen at auction :lol::banghead: ) but its a direct drive on to the lawnmower blade.
So not an option without some sort of universal joint/gearbox.
So a non starter now

Im worried that having it work right on the limit for a wet sump engine wont be a good thing.
I could over fil the sump oil but thats not always a good thing either
I thought if i used 2 stroke petrol too it, even if a leaner mix might keep thing lubricated.
Im happy if it just costs me a few extra spark plugs better than ot seized engine.
Get a battery or electric powered mower... :eek:
 
I suppose getting a couple of sheep never crossed your mind?

Pretty sure you'll get awful soot buildup and a tendancy for it to gum up between uses - basically what you'd expect. but probably manageable
 
Alright folks.

May sound a silly question.
But will running a 4 stroke engine on 2 stroke long term do any harm?
Even if i mix a leaner mix, say 75:1 instead of the usual 50:1

The reason is i have a steep banking at back off house.
It is bang on 45 degrees in most parts but the odd 50 55 bit about 10m ish down the slope. And quite long
I have been struggling for a while to figure out the easiest way to cut/strim it.
Just a real pita

I done the 2 stroke flymo on a rope but even that wasnae that easy and struggle to get parts for flymo now.

Ive just bought a cheaper radio/remote controlled mower. Generally they say engine can stand 40 to 45 degrees.

I originally hoped i could remount the engine at a different angle to take the worst off ( thought it was a flail instead of a rotary, dangers of buying unseen at auction :lol::banghead: ) but its a direct drive on to the lawnmower blade.
So not an option without some sort of universal joint/gearbox.
So a non starter now

Im worried that having it work right on the limit for a wet sump engine wont be a good thing.
I could over fil the sump oil but thats not always a good thing either
I thought if i used 2 stroke petrol too it, even if a leaner mix might keep thing lubricated.
Im happy if it just costs me a few extra spark plugs better than ot seized engine.
Can I recommend buying a scythe?
I use mine for ditching, uneven ground, thistle topping and even mowing if I am feeling brave.
 
Get a battery or electric powered mower... :eek:
I have looked at them but dont really make flymos/hover mowers.
Must admit it was a couple off years ago qnd even boys in shop where 50/50 if it would work.
And was worried they might not have oomph to cut and hover.
 
I have looked at them but dont really make flymos/hover mowers.
Must admit it was a couple off years ago qnd even boys in shop where 50/50 if it would work.
And was worried they might not have oomph to cut and hover.

🙄
 
your lubricating petrol air mix will never get anywhere near the sump , which is where you are worried about lubrication.

what engine are you talking about?

I will have oil in the sump its not instead off the oil.
Just worried oil will all be at the front off the sump.
It is designed as a banking mower and they do say about 45 js the limit but they can work at it.

I thought the 2 stroke would just keep the top end oiled as i persume that will be where the problem will be.
Only picked it up last night so need to have a proper look at the engine.
It is a loncin engine.
 

🙄

Its about 7-800m2 so while i can get power to it its a pain.
I borrowed a big electric flymo and it struggled and i almost had a disaster slipping down the banking into it as it flipped.
Could off been a lot worse.

Generally ive strimned it but hard work some off it i rope in to trees and pick up above banking with my clumbing gear as u cant keep ur feet.
Its a bugger trying to strim while ur attached to a climbing harness.
 
I will have oil in the sump its not instead off the oil.
Just worried oil will all be at the front off the sump.
It is designed as a banking mower and they do say about 45 js the limit but they can work at it.

I thought the 2 stroke would just keep the top end oiled as i persume that will be where the problem will be.
Only picked it up last night so need to have a proper look at the engine.
It is a loncin engine.
The oil in the fuel will only be in the barrel and be compressed then ignited, 2 stokes have ports, the fuel mix is drawn into the crank case then transferred up to the top of the cylinder to go bang.
No flymo mowers were harmed in the making of this post.
2 stroke less weight in the moving parts so rev faster
 
Its about 7-800m2 so while i can get power to it its a pain.
I borrowed a big electric flymo and it struggled and i almost had a disaster slipping down the banking into it as it flipped.
Could off been a lot worse.

Generally ive strimned it but hard work some off it i rope in to trees and pick up above banking with my clumbing gear as u cant keep ur feet.
Its a bugger trying to strim while ur attached to a climbing harness.
Round up. :tiphat:
 
Do what they do when they cut the grass on the Bercy Arena now called the Accor Area in Paris (where I once went to see Mary J Blige). Use an electric hover mower secured on a strong rope and let gravity do the work of taking it down. Lash with cable ties the cord to the rope. You'll have to use muscle and sweat to pull it up.


Palais_Omnisports_de_Paris-Bercy_2007.jpg
 
Do what they do when they cut the grass on the Bercy Arena now called the Accor Area in Paris (where I once went to see Mary J Blige). Use an electric hover mower secured on a strong rope and let gravity do the work of taking it down. Lash with cable ties the cord to the rope. You'll have to use muscle and sweat to pull it up.


View attachment 410753
Thats wot i have been doing with a 2 stroke flymo, but even thats novlt easy.
And flmos old now and hatd to get parts.

Have talked about the sheep/goats optuin manu times. But not really got much flat grass to eat and theyd end up digging a hole somewhere .
Its sort of retaining so u need the grass tgere to keep it altogether.
 
Sow it with wild flower seeds and leave it for the birds and the bees.
Running 4 stroke on 2 stroke will just foul the plugs and running a 4 stroke at that angle with cause oil starvation.

Ive planted wildflowers elsewhere and always been a disaster.
Good for a few years and by yr 4 back to grass/weeds/nettles.
Soil musymt be too fertile for wildflowers when im getting nettles.

I actually got the majoeity off the banking hydroseeded and i asked him about wild flowers.
He told me categorically NO.
Looks sh#t for 5 months a year and u still have to cut it and take cuttings off it.

They sowed it with a specail banking grass mix that has deeper roots than normal to hold it all together.

It effectively is a mway banking at the back of my house but as steep as ur allowed.
After 45 they start to slip and have land slides
 
Ive planted wildflowers elsewhere and always been a disaster.
Good for a few years and by yr 4 back to grass/weeds/nettles.
Soil musymt be too fertile for wildflowers when im getting nettles.

I actually got the majoeity off the banking hydroseeded and i asked him about wild flowers.
He told me categorically NO.
Looks sh#t for 5 months a year and u still have to cut it and take cuttings off it.

They sowed it with a specail banking grass mix that has deeper roots than normal to hold it all together.

It effectively is a mway banking at the back of my house but as steep as ur allowed.
After 45 they start to slip and have land slides
Fair do’s.

If you do want wild flowers then it’s likely you need a good dose of yellow rattle to weaken the grass and reduce the nitrogen. That’ll help with the nettles also.

If it’s as steep as you say and stability is an issue, plant it up with willow or mixed shrubs.

Or, just get a contractor to cut your grass. They’ll have the right kit.
 
Thats wot i have been doing with a 2 stroke flymo, but even thats novlt easy.
And flmos old now and hatd to get parts.

Have talked about the sheep/goats optuin manu times. But not really got much flat grass to eat and theyd end up digging a hole somewhere .
Its sort of retaining so u need the grass tgere to keep it altogether.
Sheep eat grass. Goats don't. They graze anything else but in actuality. So don't get goats to keep grass down.
 
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