High Quality Chainsaw Bars Husqvarna Toys Hockfire Saws

What oil is best? and what ratio?

bwalker

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bwalker

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That makes sense. E fuel here works ok in a saw for about 4 months. After that it starts detonating or pre-igniting and they don’t turn off immediately with the switch. Something is hot in the combustion chamber and saws will diesel for a few seconds after switching to the OFF position
Thats troubling.
 

bwalker

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I remember talking to you about 10 years ago the first time it happened and getting some thoughts from you. It’s a bit unnerving when a ported 066 pings for 5 seconds after you shut the switch off lol
Thats not good for sure.
Ethanol is one of the biggest welfare scams ever. Not only that it drives the cost of food up and the quality of gasoline down.
 

EFSM

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Thats not good for sure.
Ethanol is one of the biggest welfare scams ever. Not only that it drives the cost of food up and the quality of gasoline down.
I understand that it takes about a gallon of diesel to produce a gallon of ethanol. Is that accurate?
 

Tomos770

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One thing about wster oils like Dominator or K2 is one should be aware they are not very good at protecting engines from rust during storage. Its just a property of ester oils.
A little fogging oil cures that.
I always store ope with mineral oil + aspen 4T....

But thing is.....al my ester oils ( Motul 710 2t...) has higher TBN then mineral 2t oils...

TBN 2.x vs 1.x.....
 

bwalker

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I always store ope with mineral oil + aspen 4T....

But thing is.....al my ester oils ( Motul 710 2t...) has higher TBN then mineral 2t oils...

TBN 2.x vs 1.x.....
TbN is a measure of acid neutralizing ability. It doesn't stop the esters from breaking down in the presence of water vapor and oxygen.
 

Lions fan

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Still using cheap/plain-jane Lucas 2 cycle in all my 2 strokes. Can find it at any O'Reilleys napa or autozone for $9.99 a quart. Year #3 in the saws using lucas.

Funny thing: completely overhauling an 80hp suzuki 550 2 stroke. Oil injection tank full of lucas. Just bout finished out. Compression was a little low at 7000 miles. Ring gaps sloppy, piston skirts deformed and sloppy.

Anyhow, I noticed that the throttle cable is broken! The oil injector pump side if the cable is snapped and wasn't working. I dont know how long this motor has been fed oil metered only for idle, while I full throttle the fker every day.

The bottom end is just fine. No signs of heat not a spec of blue discoloration on the rod ends. So just a routine top-end refresh.

$120 for a freaking throttle cable. As much as a forged piston.

View attachment 485663
Is that in a Bearcat, or something else?
 
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