Originally Posted By: Kawiguy454
Sounds like you ran E85? Remember the more alcohol in the gas the more fuel volume is needed per a given amount of air to not be lean. So it makes sense that an engine running lean burning alcohol gas would run better with no alcohol.
Also small two stroke engines are sensitive to proper mixture. And if lean they heat up and run even worse with no power. Mixed a tiny bit rich is usually best.
There should be Lo and Hi speed mixture screws on the carb. Take it to a small engine repair guy and he can set it with the fuel you normally use.
They don't sell E85 near me. It was E10. I think I mentioned that. I should take the brand new trimmer to a small engine guy to set the carb? Out of the box? I'm aware of the mixture screws. The ones that aren't accessible unless you take a Dremel to them. I don't know what I was thinking by posting this here. Where everyone will say 'oh he probably....' 'He probably didn't do this...' 'Must have been this...' 'I've used xxx in my xxx for 20 years with no problem.' So have I! Gd! I understand the skeptacism. I've been a skeptic myself thats why I posted it here. I'm not one to say that E10 does any harm. I still don't. All i am saying is fresh out of the box, fresh gas out of the pump, 92 octane out of a station with a single hose and yes I filled up my car first should anyone try to make a presumption about how much of the gas was actually 92. Fresh gas, fresh oil, ran like garbage. Dumped it out, poured in the trufuel and it ran great. There aren't many variables here. As i said above the only suspect part was the Promix one dose fits all ratios that i bought at Lowes. I didn't see the included Troybilt/MTD oil that was rolled up in the instructions because who reads those. I do plan to mix a gallon with that oil and see what happens, but in the meantime I'll use the Trufuel because it runs well. This wasn't a seat of the pants I cleaned the air cleaner kinda thing. It ran like shat on the fresh E10 92 octane and Promix.