Hello, I’m going on Saturday with my brother in law to look at a 2017 Spark 2 up. The ad says 60HP and says 68 hours. I’m very familiar with the 2 stroke seadoo’s but the 4 stroke, not at all. What are some things I should be looking at wem looking it over? Any common issues with them? They are allowing us to water test it, so that’s a good sign. With my limited knowledge with these machines I was simply going to test ride it, make sure it reaches a decent top speed, thinking that should be about 50mph? Make sure there is no cavitation, good out of the hole but other than that and just looking it over I really don’t know what to look for.