>At other power settings the rear cylinders run a lot cooler than the front
>and there is often an imbalance left to right on the rear. The front
>cylinders are far better behaved.
>
>I haven't tried swapping probes around to see if the imbalance is down to
>instrument error, but doubt that it is. Rather, appalling inlet manifold
>design allied to the shared cylinders not operating 360 degrees apart is
>likely to blame.
I found exactly the same with the 912 and came to the same conclusion. Time
Rotax gave us fuel injection.
I believe Ellison did a throttle body installation for the 912. I had good
experience with one on a Lycosaurus but haven't heard about any Rotax
installations
Graham
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