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That valve looks very much like the Antelco ball valve I use. I suspect the same valve is sold under multiple brand names, and not just for ‘irrigation’.

One of the first Antelco valves I found...

Saltwater ski for sure

That larger line is the oil pump supply line. It feeds the pump. Why do you want to replace the oil pump with a block off? The oil pump is super reliable. The lines, however need periodic...

Could very well be the midshaft bearings since nobody seems to know about greasing them.

moneypit 1, moneypit 2, moneyabyss, and WTFmywalletisempty

That's quite a bit of turning over to get oil to the carbs. I always remove the pump and turn it with a drill to get oil through the lines. The pump turns CCW.

Agreed. Plugs look good, and it may have not been fogged very well.

Some folks quick-fog : aka whilst running, blast the aerosol oil down the intake until it snuffs the engine out, and this is...

....which means somebody didn't fog properly for storage. Imagine your valve stems also looking like that...

I wouldn't run the DF 14/20 on your current set-up. If you convert over to the HO pump from the 05+ years, you may be able to turn it reasonably well. Even then, it could require a repitch.

Pretty...

My guess, you dropped one of the washers down in the crank case when putting the piston on. Once you finally opened the engine up, there was enough up draft to suck the washer off the bottom of the...

Hey guys,

I have (2) yamaha waverunners. 2002 gp800r and a gp1200r. They both quit working and would barley run in the water. I was refered to a mechanic who got the 800 running decent prob 5 to...

So I got a 93 vxr pro that I got running and now runs amazing. But the problem is that its leaking water behind the seal for the drive shaft between that bearing and the hull there. Im curious...