RCU Forums - OS 46fx and 46fxi difference

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tripower222

02-25-2010 07:28 PM

OS 46fx and 46fxi difference

What is the difference in the 46fx and the 46fxi ???

w8ye	02-25-2010 07:46 PM

RE: OS 46fx and 46fxi difference

The cylinder head on the -i- looks like it was made from a -LA- casting

The -i- has lower compression than the -FX-

I'm thinking the -i- has the new plastic body needle valve on a steel mount bolted to the back plate? Its been a few years since I've seen one.

The engines run nice that just don't have as much power.

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