Showing Off On The Vintage 650sx Standup Youtube Vintage 1989 kawasaki 650sx standup. added the wrap and a long cone on the exhaust. these old skis are fantastic. You can’t go wrong with a 650sx standup jetski. great combination of all things pwc.
Vintage Kawasaki 650sx Standup Jetski In Action Youtube Although these skis looked quite similar at first glance, the 650sx featured a bigger and heavier body. in terms of dimensions, this platform measured 86.8 inches in length, 28.8 inches in width, and 29.9 inches in height. the dry weight of the 650sx was 282.2 pounds, 61 pounds heavier than the 300sx. unlike the predecessor’s original js. Alright so i found a pretty good deal on marketplace and decided to pull the trigger. this is my first kawasaki and first stand up. however not my first ski (have had quite a few) i have a few questions regarding the current setup. the ski is a 86 650sx powered by a twin carb small pin 750. compression measured around 155 in each hole. Tweet. #7. 09 12 2015, 08:03 pm. re: 650 sx mikuni sbn 44 carb upgrade. get a 44sbn and west coast intake manifold. 115 low jet, 140 high jet, 2.0 needle and seat, and set the pop off to 20 psi. you should be able to tune it in close at 7 8 of a turn on the low jet, and 1 turn out on the high jet. then go from there. Checked the pop off pressure: 23 psi. cleaned out the fuel lines, pickups, reserve selector valve, vent check valve, and checked that fuel flows through the return line when cranked. however, it doesn't seem to ever draw fuel into the carb past the needle valve by itself. like the fuel pump is not generating enough pressure, or the diaphragm in.
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