What oil is best? and what ratio?

[FergusonTO35]

Keith, your 201 looks to me like it had a very rich air-fuel ratio or spent lots of time idling. Just my take on it.

 

[skippy]

Mobil one is still for sale if you have a masco account

What's a masco account ?

 

[skippy]

What's a masco account ?

And if I could obtain one .
Where could I purchase Mobil 1 t2

 

[junkman]

And if I could obtain one .
Where could I purchase Mobil 1 t2

I think it is a pacific nw fuel and oil company only
Their fuel is around truck stops normally ,cfn or pacific pride pumps
https://mascopetroleum.com/

 

[Ron660]

Keith, your 201 looks to me like it had a very rich air-fuel ratio or spent lots of time idling. Just my take on it.

I've read were several members state the opposite. They say a rich tune (with a high or low viscosity oil) and idling long periods of time will not allow the internals, like the piston/rings and exhaust port, to form deposits/carbon.

 

[mdavlee]

Burning too cold won't make carbon like that. It will be goo or just wet with I burnt oil

 

[Keith Gandy]

I've read were several members state the opposite. They say a rich tune (with a high or low viscosity oil) and idling long periods of time will not allow the internals, like the piston/rings and exhaust port, to form deposits/carbon.

That oil was burn to the ragged edge

 

[Ron660]

That oil was burn to the ragged edge

A co-worker uses Sea Foam in his chainsaw to remove buildup and correct idle issues. I've never used it or had a need to.

 

[FergusonTO35]

I've read were several members state the opposite. They say a rich tune (with a high or low viscosity oil) and idling long periods of time will not allow the internals, like the piston/rings and exhaust port, to form deposits/carbon.

Perhaps so, that was just a guess on my part. Another possibility, what about gasoline additives? Some additives leave crusty gray fouling in four strokes. Maybe these additives combine with oil to form the fouling seen here? I will say that since I started using fuel stabilizer in all my machines year round this phenomenon has been greatly diminished. The plugs in my 1955 tractor with awe-inspiring 7.5:1 compression are spark plug problem chart perfect.

 

[Ron660]

Perhaps so, that was just a guess on my part. Another possibility, what about gasoline additives? Some additives leave crusty gray fouling in four strokes. Maybe these additives combine with oil to form the fouling seen here? I will say that since I started using fuel stabilizer in all my machines year round this phenomenon has been greatly diminished. The plugs in my 1955 tractor with awe-inspiring 7.5:1 compression are spark plug problem chart perfect.

Certain 2T oils have better detergents and run cleaner than others. I've seen a de-carbon product/additive sold in Stihl shops. Quality of fuel, also additives, probably does make a slight difference. An automobile mechanic recently told me he only uses gas with "Top Tier" additives. He said it will be a sticker on the dispenser saying it contains this additive. He said it keeps his V-8 engines, including his Harleys, really clean compared to other brands. I recently found some at a local Valero station.

 

[RI Chevy]

I don't believe that the Stihl Decarbonizer is meant to be added to fuel and burned. If I remember correctly it is added to the piston, swirled around a bit and then dumped out.
Just didn't want to see anyone be confused on that.

Sent from my SM-G930V using Tapatalk

 

[CR888]

Just a guess but the 201 may have been running an oil like say Ultra, combine a poor combusting oil with a top handle that idles for periods & its not a big surprise.

 

[jakethesnake]

A co-worker uses Sea Foam in his chainsaw to remove buildup and correct idle issues. I've never used it or had a need to.

Does it work?

 

[Dub11]

Does it work?

I think of it this way would you want a carbon flake coming loose and flying around in there?

 

[jakethesnake]

I think of it this way would you want a carbon flake coming loose and flying around in there?

I don't copy ?

 

[Dub11]

I don't copy ?

I'm just thinking of the dry looking carbon build up on motors. I'd want that stuff staying put until I choose to remove it. Would want something catch a port and stuff.

 

[jakethesnake]

I'm just thinking of the dry looking carbon build up on motors. I'd want that stuff staying put until I choose to remove it. Would want something catch a port and stuff.

Copy

 

[FergusonTO35]

When I was a car mechanic, we had a product from BG fuel systems that you would pour into each spark plug hole. There was another that used an atomizer to spray a fine mist into the plenum while the engine was running. My experience always was that if the car had been cared for properly these would never be necessary. I could see where a really old carbureted vehicle might benefit. Perhaps something similar could be done for a two stroke.

 

[Dub11]

Copy

I've used the stuff in cars and it seemed to help. I'm just remembering the time in high school I put some engine restore in a Honda I had. It knocked all sorts of *s-word loose and it started smoking and filled the crank case full of sludge that wasn't there before.

 

[jakethesnake]

I've used the stuff in cars and it seemed to help. I'm just remembering the time in high school I put some engine restore in a Honda I had. It knocked all sorts of *s-word loose and it started smoking and filled the crank case full of sludge that wasn't there before.

I'll run them till they blow. Negative on c foam