How many oz per minute does the YS 63s burn? I'm wondering if my plane needs a bigger tank or not. It has about a 6 oz tank but it doesn't seem to run very long. I still have the engine running very rich as it's new. The tank is very flexible too and I wonder if I should replace it anyway.
Don

The 6 oz. is too small. We usually run a 10 or 12 oz. on the 63. They will burn 1 oz per minute depending on the type of fuel used.