id go with a kawasaki there reliable but would do a premix conversion oil pumps go out much like yamahas. seadoo has good oil pumps but not the best ski ive owned. kawasaki 750 is a good engine never had any probs with them other than trim malfuntions. i just installed new engine in my seadoo. i like the way my seadoo handles better than my kawasaki and with two passengers the seadoo rides smoother at wot than the kawasaki. the kawasaki more reliable in my opion