Well I think I heard him right. God knows I would be the last one to defend him :)

Could be the Mazda engine is unique in it's installation of the motor cycle metering pump. 
There is little or no "head" on the oil feeding the pump. I think they changed 
that in the RX8 engine.

Take a look at these shots of the inside of the RX8 front cover.
The complicated chamber looks like an oil reservoir for the metering pump.

Paul

Paul, That comment just doesn't make any sense. The oil pump would have to work on any road the car could access. the motorcycle manufacturers don't limit
2-strokes to a max of 8K feet! The pump used is the same. There are paved moutain passes in california well over 10,000 feet. Does the pump just stop working?
I am getting more and more disturbed by some of the comments attributed to Atkins, (if true), I would be bothered enough by some of the comments to avoid
using his services.
Bill Jepson

     Dave Atkins claims the apex seal oil metering system does not work over
     8000 feet. He also claims the engine will run up to three months
     in automotive service with no apex seal oil whatsoever. We have some verification
     of that as George Graham flew his airplane from Tennessee to New York
     state while forgetting to mix two cycle oil with the fuel.

     Paul Lamar

 
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