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I agree and as bad as I feel about not preventing the cause, at least I found it so I’m not left wondering what happened.

I am also going to seal up this part of the intake.

I would have been ok had I not cut a slit in the bottom of the bag to route a USB port.

I actually did figure it out and it was very unfortunate and 100% my fault. When I was cleaning the engine bay out I found small beads (still had no idea where these came from at this point). A couple days later I was messing with the hood on my bench and looked in windshield bag and found a...

All top end parts are in the correct locations and accounted for. Ring locating pins, the entire rings, wrist pin bearings....

All the needles are there. Probably going to tear the engine down the rest of the way this week. Someone suggested that it might be a ball bearing from the water pump but I thought I would have had a coolant issue if that was the case.

I had a puzzling find on my snowmobile engine. Has anyone ever seen this on pistons? This is out of my 2017 Polaris 800 switchback assault engine (with 4,400 miles). I pulled the power valves out at the beginning of the week and noticed spherical dimples/craters on the tops of both pistons. It’s...