The 80 piston appears normal for "fat" running --
hard baked black deposits with dry skirts and nasty screatches --is lean -obviously --
So far I havbe yet to find a perfect oil which will allow too rich or too lean running -
The Redline Racing/ Klotz two stroke model oil and the Mobil 2 stroke seem to be as good as it gets --on the ZDZ.
BUT once more - how you run it is far more important that what you run in it .
I just try an oil for a while - look at the results then go from there .
even the Pennz two stroke break in oils runs fine - unless you run it lean -or way rich.
I still would like to know if anyone has a "discovery" on what causes the most imbalance in temps on the twins
The in cowl mufflers are not symmetrical in flow and this must make a difference.
Look at any of em -
Probably headers matched in length to can muffler would help.
and /or slightly restrict the hotter running one .
Just a guess--
On glow - we shimmed the hot one .
But that was another BIG PITA