[URL="http://www.amazon.com/Chicago-Electric-Generators-Portable-Generator/dp/B006ZB9SKG/ref=sr_1_5?ie=UTF8&qid=1404553199&sr=8-5&keywords=900w+generator"]This here.[/URL] Is it safe to mix 4 gallons of gas/13 ounces of oil (40:1) in the can, then fill the generator with this [I]premix[/I]? I figure I could mix it that way to save time on refills since it only can hold about 1 gallon at a time. Sorry if this seems like an obvious question, but I've never used a 2-cycle engine before and have no idea on their limits.

Acquired this used saw.. Replaced rotted fuel lines. The duckbill for the fuel cap and another duckbill with a smaller diameter lock ring were loose inside the tank. reinstalled the one for the cap and set the other aside. cant find a spot for it. Any ideas? I otherwise cleaned it and the carb and got it running good during the adjustment while warm. but after a few days I couldn't get it to start and had to begin the adjustment process again. that time I noticed bubbles forming in the main fuel line from the tank at the carb. guessing this extra part may have something to do with it. Thanks ahead of time for any help, can find anything in the online manuals.