There was a little dark spot. It wiped right off with a q-tip so it must have been a little fuel residue. The plug is in great shape.

Oh ok then. So try running it a tiny tiny bit richer and see if that helps.

Here's a better pic of the plug. Again, one swipe with a dry q-tip removed the slight dark spot. It was more light brown than black, it just showed up that way in the picture.

Looks pretty great actually.

Actually looks new, when you took the plug off, did it have a bit of fuel on the plug or was it dry.

It does not look that the engine have been lean at all. for how long has that plug been ran?

The was a very light coating of oil when I pulled it. The button, piston and other internals also had a light coating of oil. It was clear and hard to see at first and I though the engine was dry. Way different than the Byron's 30/9 that I was running that left a bunch of oil all over everything. The top of the piston had some caramel colored residue on it that wiped off easily with a isopropyl dampened rag.

That plug has 1:15 or so on it, one race day.

Your fine then. Run it a bit more and if its grey and has a bit of oil, you have a perfect tune.

Yea. Looking good. If it was my engine, i would lean it a little bit more:-) you are on the safe side and the engine will last you a long time :-)

That's reassuring, that is what I was thinking too. The great thing is that it also has gobs of tractable power!

Neal I dropped the Bonito off at the Post Office this afternnon and you should have it in a few days. Nurse my baby back to health will ya

Big thank you Neal!!! Got my engines back last week and first thing I did was order the case caps so that hopefully won't happen again. Going to break in the 28 this weekend, can't remember if you said I was good to go on the P5 or if I needed to be real nice to that one?

Just ordered my Clocked B6 Pro. This is my first Clocked engine. Can't wait to get it.

Congrats! Can you report back to tell us about how the engine feels?