Jun 25, 2014 · Re: 1988 Kawasaki JS 550 Compression Levels? my 1990 was 110/125 (per autozone loaner gauge) and actually ran quite well at that, until my air leak got so bad that the ski would 'runaway' if blipped out of water. lean and mean.

Jul 24, 2017 · Re: JS550 - fuel delivery questions 1. Yep, both should have a check valve for the fuel tank. 2. That fitting is for the pulse line to run the fuel pump. If you can blow through it and fuel comes out another line then there is a hole in t

Every 2-cycle engine has a specific gas/oil mixture ratio; the Kawasaki JS440 and JS550 Jet Ski require a 40:1 mixture ratio. This 40:1 gas/oil ratio is displayed on side of the hulls gas filler cap. There are 128 ounces in one gallon, so divide the 128 by 40 and that will give you the number of ounces of 2-cycle oil you need for one gallon of ...

Nov 15, 2007 · 2005 Yamaha VX110 Sport w/reverse and mods 2001 Polaris SLH 701cc stock 1998 Kawasaki 750 SXi Pro stock and very clean

Aug 5, 2015 · 85 550 (Power by PoM) 86 550 Southern fleet: 89 550 (half owner, nice loaner ski) 89 650 92 550 82 550 & 91 650 (don't own either, but do all the wrenching) (prop, plate, grate, bars on everything...and other assorted mods on the whole shootin' match) sigpic Member: SCCA, ALMS, IMSA Tudor Sports Car Series

120-125 main 100-110 low popoff about 20-22 psi, should be good to go with some fine tuning. it was a total B^$$% putting the SBN44 on my 550 but once it was all dialed it its a much better carb Check out Poor Boy Racing on Facebook

Jet pump to exhaust manifold, to the motor and head via water jackets and to the exhaust pipe. Some place along the way there is a pisser (usually after the head) and a fresh water flush tee. Personally, I would take it to a ramp. Turn the ski around and tie the back end to the trailer. Put the ski in the water just enough to barely float.

Aug 24, 2009 · Re: 550 no spark i just spent three days trying to figure out why my '91 js550sx wasn't getting a spark. Here's what i did and how i finally fixed it: I've been riding my jet ski all summer and all the sudden while i was riding it on the lake at a pretty decent throttle it just died. After that i couldn't get it started.

May 27, 2020 · I always hated that the factory wiring diagrams for the Kawasaki stand up jet ski's were black and white so I took some time to colorize them. I colorized the wiring diagrams for the JS300/SX, 440/550 w/o mechanical limiter, JS550 w/ mechanical limiter, 650sx, and 750sx.

All Kawasaki 550's (82 - 95) use the exact same crankshaft coupler. The JS550's are from 82 to 89 and all have a piston port motor. The 90 550SX also has a piston port motor. All the 550SX's from 91 to 95 are reed engines. Chester