Re: 100:1 Mix
I sent to cylinder to Dax today. He can answer your question as to failed chrome. I could not see it when I handled it to take the photo, and I sure cannot see it where the red arrow supposedly points to it. The only oil the engine ever had in it was Opti-2 mixed at 100:1 per instructions from Brad at Interlube. The engine was run on 3 short 1 to 2 mile trips. It locked up the first time on the last trip after about 1/4 mile. I could barely crank it, but as it cooled off it started again. Then I rode another 1/2 mile and it locked up again, but this time would not start and I had to ride home under pedal power. CAG engines don't like Opti-2 at 100:1, even though other engines may have looser tolerances and less horsepower and can use it. The 4.2 hp rating may actually be the missing piece to the puzzle, as more horsepower means more heat for the engine to shed and more expansion of engine parts. This is not a contest, I just want to ride my bike again!