That's a lot of oil, Steve! I wonder if the oil jacked-up the compression enough to blow past the head gasket? The #2 had massive amounts of goo in the chamber after the melt-down, IIRC? If I were you, I would ditch the auto oil system, and pre-mix the fuel, at least for now; then you KNOW how much oil the motor is getting. Speaking of oil, what are you using?
It is a lot of oil, that's why I freaked out! Does seem like it could cause blow out. I did fail to retorque the heads my first test ride, so that could have implications as well.
#2 did have goo and bits of the piston on the head, the piston skirt had a big chuck missing and pretty severe scoring, may not have posted a pic of that?
I prefer to continue using the auto oil system, premix is a hassle on a bike, ya know? (Did it for years in various boats I've had). Just read up on the check valves, there are located in the banjo bolts. Need to inspect them. I used a name brand 2 stroke oil, don't recall the brand.
No expert but I feel like enough oil to raise the compression would foul the plug in a hurry. I don't know anything about the Kwaka oil pump, but with Yams the pump is generally considered a safer bet than pre-mix until the engine has been modified beyond the range of the pumps adjustability...
No expert here either, this thing has me scratching my head! The bike was running like it had a fouled plug, but when checked, #1 had a nice fat spark. It nearly started on the first kick with the head off, that was a little surprising.
I stopped by 2 auto parts stores to get the NGK B9HS and neither had em, they ordered and should have em now.
