Sorry guy, but that's not how it works. Octane isn't the killer in 2 strokes. Crappy mix oil, poor/dirty fuel, overly rich or lean settings, filthy or no air cleaner, cracked or leaking intake boots/blocks, carbon in the cylinder...that's what kills them. A slightly rich mix of 40-1 instead of 50-1 is not going to lead to premature 2 cycle death. That pic of the piston in your OP shows a really rich mix and carbon build up. I'm betting the air cleaner was clogged too, even if it "looked" clean. Combine any of that with a leaky seal or boot and you get failures just like the ones pictured.(quoted from post at 23:18:45 04/24/17) Hello Texasmark1,
More oil in the mix is not the answer, as you already found out, 40 instead of 50 to 1! Doing so will have the same effects as too little oil. Now you are doing if again? If you had used the proper mix, your engine would STIHL be purring, pardon the pun! By adding more oil to the mix,you are lowering the required octane ratings that the engine requires. The engine may or may not smoke. But the issue is that you are LOWERING the octane ratings. That results in poor and cold combustion, which leads to early failure because of it. The owners manual should be your bible. Proper maintenace, quality gas and oil plus proper intented use of the product are the key to long equipment life.90% or more of the people that I ask, do not have the unit's manual say no..... chucked it! It never seems to amaze me!!!
Guido.
(quoted from post at 16:47:01 04/25/17) OK. here is a big question. How exactly does one "throw out" that left over fuel? At least around here, there is no easy or simple way to get rid of unwanted fuel. I can't legally pour it down the drain - eith4er inside or outside the house. I can't pour it on the ground. It would appear that one would have to collect it in a container and take it to a hazmat disposal facility. Not a good thing to add to today's sensitive fuel injected cars to burn off that way.
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