this post was submitted on 12 Jul 2023
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Gas should be okay to sit for a while but will gradually lose its octane rating. FI bikes are especially tolerant. Carbed bikes can have issues as the gas evaporates out of the float bowls (jets can clog). Might be worth draining them or running them out before you leave it.
Don't park your bike under trees in a rainy region or the drain hole can clog, water could get in your tank which is a really bad time.
Sitting for 3 months, FI bike (MT-09). Siphon out of the tank or run it?
@JustAManOnAToilet @Fox
Put some Sea Foam (a brand, pretty easy to find) in the tank and let it sit for a while. Should clear up any problems with older gas. I've used for years for bikes and engines that have to sit for long periods
BE CAREFUL with Sea Foam. See https://youtu.be/chsGBhB5g7o