Should you run 93 gas in your Yamaha jetski?

Using 93 octane gas in your Yamaha jetski is generally not necessary unless specified by the manufacturer. Most Yamaha jetskis are designed to run efficiently on regular unleaded gasoline with an octane rating of 87. Using higher octane fuel may not provide significant benefits and could be an unnecessary expense. Always consult your owner's manual for the recommended fuel type to ensure optimal performance and avoid potential engine issues.