January 25, 200422 yr I don't use my bike ('89 TY 250R) as often as I'd like to, and it may not be used for up to 2 months at a time. Is it ok to leave the fuel in the tank for this long? Does 2 stroke mix 'go off', so to speak? and I've usually got 1/2 gallon of 2 stroke mix in a fuel can stored. Is this ok? Thanks for any advice.
January 25, 200422 yr When I had a Yam tyz 250 the manual said you should do your 2 stroke mix and use straight away. The oil does separate from the fuel. I have often thought a cause of main bearing failure in some bikes could be due to the oil separating. If you fuel is stood in the bike for a few weeks I would think it possible for a very rich mix to go through the engine first then the rest of the fuel could possibly just be petrol with very little oil. mark t
January 25, 200422 yr I always grab the front brake and pump the forks a few times. Shakes up what's in the tank. I don't know if it helps, but it makes me feel better. Smell your gas. You can tell if it "goes off". The guys I know who use race gas always put it in a metal container so it will last longer.
November 9, 200619 yr not sure about that! i read that once 2-stroke oil (modern) been mixed properly it never seperates again! i think this was a throw back to the 60's when the old 2-stroke oils used to seperate im sure this NOT the case anymore!
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