motorider116

My 1989 js 440 runs great bhooked up to a hose but once on the water seems to load up and bog. Im new to this pwc site and being an owner. Any ideas?

Ernest T

Have you checked the compression? Typical for a worn out top end to run great with no load, but bog when you load it in the water.

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2008 Yamaha FX HO Cruiser
2010 Hurricane Sundeck 2100

motorider116

Thanks for the response ernest t... what ballpark psi should I have ?

Ernest T

I'd post that question in the Kaw section for a better answer, but generally for 2 cylinder engines you would look for around 140-150 psi, and for 3 cylinder engines 110-120 depending on the model.

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2008 Yamaha FX HO Cruiser
2010 Hurricane Sundeck 2100