High Quality Chainsaw Bars Husqvarna Toys

What oil is best? and what ratio?

Clemsonfor

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32:1 seemed a bit rich for my equipment with the electronic carbs. I did experimenting with all my equipment and settled on 36:1... You should really look at what Redbull did towards the beginning of this thread.
Just thinking 36 is so close to 32? I glanced at some of it but not in depth.

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RI Chevy

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Is this the new or older RA mix? Or are they 1 in the same?
 

DND 9000

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I just picked up a KM131 head. Are the 4-Mix motors OK with 36:1?

That can give carbon built up on the valves and valve seats and running problems. Stihl only recommends 50:1 for the 4 Mix engines because of this carbon built up. I think it`s not good to use 36:1 in the 4 Mix engines.
 

Fairways_and_Greens

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That can give carbon built up on the valves and valve seats and running problems. Stihl only recommends 50:1 for the 4 Mix engines because of this carbon built up. I think it`s not good to use 36:1 in the 4 Mix engines.
Good point. That will complicate things...
 

Clemsonfor

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Red Armour when it first came out was a completely different oil than it is now. I see no reason to run it over power blend now.
Best deal i found is on ebay. Havent walked into a dealer yet as those are hard to find. But found a gallon of power blend shipped off ebay for $45

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