You're thinking about the 2 stroke Rotaxes.
The 9 series of four stroke engines are completely different and are superb power plants.
It might be worth reading the thread below which gives some more detail about ULS problems and other views on the Jab. You bought to consider the UL Power engine too. No gearbox, no water coolant system and fuel injected. If I specifically wanted fuel injection it's the way I'd go personally. Rotax are charging jut to much for the 9 series now IMHO.
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