Does anybody know the size of o-ring(s) that go on the plastic water manifold that bolts to the exhaust manifold? I'm rebuilding and would like to replace the o-rings on mine (and I have a bunch of o-rings and a local supplier) and would like to not have to wait weeks for a yamaha OEM order. Thanks for the help in advance.

Also, does anybody know if a SeaDoo fuel selector will work in place of a Yamaha selector? if not, anybody know of anyplace that keeps them in stock?