Seadoo rotary valve symptoms. This manual covers the main differences of these new models. just a fyi Not open for further replies. Jul 9, 2017 · On a 787 what symptoms would you attribute to a rotary valve shaft seal leak that would only leak while running. The fuel looked a little old so I drained all the fuel out and rebuilt the carb w/ exclusively OEM parts Need OEM quality replacement parts at a better value? Restore your jet ski with rotary valve parts for Sea-Doo models. Either one explains the proceedure in detail. The rotary vale goes on the center tooth drive gear and spins and covers and uncovers the 2 ports on either side. Jun 10, 2013 · I've recently had to set the rotary valve on my 657 which I'm still in the process of completing. put a couple drops of 2-stroke on it Mar 24, 2012 · I have another question. This one is off my personal ski that never had issues starting. The list is as follows: stock head reworked to increase compression, Westcoast intake manifold with Mikuni Super BN 44mm, K & N flame arrrestor, Coffman pipe, rotary valve from Rossier Engineering, Jet Dynamics intake grate (medium depth), 14-19 solas impellor and adjustable sponsons. vja2oz 80dbk nfhy bye wh i26 7nsq4 sbdpj jc jw