x2 motor carnage?

So i took the x2 out on the lake today. While taking a right turn and giving it throttle i hear a weird noise and feel power lose. so i idle the ski back into shore. The motor wasn't sizzling water and didn't feel very hot. I started the ski after a few minutes and the ski continued to sound not normal. so i took the ski home and took the head off. The front cylinder's piston has pitting along with the front dome
sad.gif
. The rear cylinder look fine and i was running the ski on the rich side. What do you think the happened to the motor to do this. I was running the westcoast head with ep7029 domes with o rings and westcoast head gasket. The list of motor modes are listed below

Motor- single cooling. Running Red line race synthetic oil-32/1

westcoast pipe and head pipe
westcoast waterbox
westcoast head
42mm keihin cdk2-Kn&n(jets-160/85)
motor bored with .50 pistons
new cdi with jss wires and msd boots
fmf cages with after market reeds.
jet flow valve

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dfw
So i took the x2 out on the lake today. While taking a right turn and giving it throttle i hear a weird noise and feel power lose. so i idle the ski back into shore. The motor wasn't sizzling water and didn't feel very hot. I started the ski after a few minutes and the ski continued to sound not normal. so i took the ski home and took the head off. The front cylinder's piston has pitting along with the front dome
sad.gif
. The rear cylinder look fine and i was running the ski on the rich side. What do you think the happened to the motor to do this. I was running the westcoast head with ep7028 domes with o rings and westcoast head gasket. The list of motor modes are listed below

Motor- single cooling. Running Red line race synthetic oil-32/1

westcoast pipe and head pipe
westcoast waterbox
westcoast head
42mm keihin cdk2-Kn&n(jets-160/85)
motor bored with .50 pistons
new cdi with jss wires and msd boots
fmf cages with after market reeds.
jet flow valve

1335477979.jpg

1335477982.jpg

1335477984.jpg

1335477986.jpg

1335477988.jpg

1335478251.jpg

1335478252.jpg

1335478254.jpg

1335478256.jpg

Looks like a bearing retainer came apart.
 
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