X-Mozilla-Keys:                                                                                 
Ken Powell wrote:

     OK, I admit that I have never jetted a rotary before, but if I were to
     use a carb instead of Tracy's EFI I would be using an EGT along with
     plug readings - lots of plug readings!  I've been thru this several
     times with motorcycles just using plug readings - it takes a lot of
     patience and again - LOTS of plug readings.  Note that you should jet
     'wide open throttle' first, then the idle circuit, and lastly the
     needle/needle jet for the midrange.  Is this how the rest of you guys
     do this - note that these are diaphram / slide carbs, not downdraft or
     sidedraft?  Sure would be nice to have Pauls 'ping detector' to keep
     from letting a lean mixture sneak up on you.  On a piston engine you
     have to start rich and work toward lean due to the danger of
     detonation and holing a piston.  Shouldn't matter with a rotary though
     unless the load is so heavy that a apex seal might be broken thru
     detonation.  Paul, isn't breaking an apex seal due to ping unlikely
     with a normally aspirated engine?

     Ken Powell

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