I have an old JS440 stand up.
Just been rebuilt with new pistons and rings, carb cleaned,fresh plugs and fuel.
Runs sweet and ticks over nicely but takes about 10-15 seconds to get on the plane with me (16stone/of Muscle
)
It Blue smokes a lot but compression and leak down tests are good.
I am only used to tuned 550's and more modern bigger hp ski's
It has standard as new Aluminum impeller
Hope someone can tell me weather or not they are supposed to be like this or has it a fault?...Apart from the obvious
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