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My first question to Kyle; A couple possibilities were suggested. The power valve screw was over tightened when installed cracking the stem. The other (that several dispute) is that lake water getting into the engine is hitting the hot power valve making it brittle. Kyle's response; Both...

Thank you to everyone. I have forwarded all of your questions to Kyle at DASA. I will let you know what we find

Sorry I misread JR's post. I will be taking the ski to the engine builder on Monday at which time we will pull the head and I will be able to collect the measurements.

Measurement was 0.323 on both sides

Is this the measurement of the blade you wanted me to take? Both sides measured 0.323

These are 2 parts I was hoping would never meet.

Have you looked at Whole skis for sale under the market place on the home page of XH2O. There are some Great deals.

DAG Luckily for me the stem broke off above the stop, not allowing the guillotine to drop into the cylinder. I am concerned that the shinny spot on the guillotine is an indication that the rings did make contact.

I will definitely post better pictures this evening. Thank you everyone for all your help.

Hello Kaylee attached is a picture of the break. Please let me know if you need more pictures? Thank You

I definitely believe water can be getting to the guillotine when we nose in a back flip and the ski goes all the way under and we ride it out. I have to assume some water is sucked into the carburetors which is definitely entering the cylinders which could be getting to the guillotine.

Thank You Kaylee. I will get a few more pictures posted later this evening. I have only used a allen wrench to ever tighten these screws, do you feel enough torque could be generated to damage the valve using just and allen wrench?

Thank You. That probably explains why I haven't received a response from my email. LOL

Thank You. I have reached out to DASA. Do you know if Kyle Kennedy is still working for DASA?

Yes both valves broke in the same spot. Same cylinder front. Just bought the valves. We did check the power valve to piston clearance during the machining process. There are currently no signs on the the power valve that it contacted the piston, I have not yet removed the head. I have my...