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Working on a ski for my friend, it’s a 2003 Yamaha xlt1200 2 stroke. He bought it used and had a ton of corrosion in the crankscase and carbs. Got a new rack of carbs and wound up doing an sbt crank, pistons, and cylinders. We did an oil pump delete and ran 32:1 premix. Got it in the water and...

I just replaced my pump shoe on my rn sj with a brand new blowsion shoe. I got it siliconed and screwed in nice and flush with the hull. I went to install the pump with a new seal but couldn't get the bolt holes lined up. I thought it may have been because of the new seal so I tried the old one...

Just noticed that I have a few broken fins off my venture nozzle. Is there any real negative impact to running it like this? I'm experiencing some cavitation but can't imagine that the broken fins would create this. Any insight is appreciated.

I've been experiencing what feels like cavitation under heavy throttle. I pulled the grate off today to check things out. I noticed a decent gap between the wedge and the pump housing is this an issue that could cause the cavitation? I got some pics for reference.

I have my pump apart to swap impellers and I noticed there's 3 broken tabs on the metal portion of the nozzle right after the jet veins. It's not on the plastic steerable nozzle but on the metal portion right before it. Are these tabs important for good flow or menial. Wondering if I should...