Fuel stabiliser

[Water sports]

1999 Seadoo Speedster 787 jet boat 2 stoke
Hi which is the best product to buy in relation to fuel stabiliser and how much do I put in

 

[mikidymac]

Marine Sta-bil and follow the label on the bottle.

 

[Water sports]

Marine Sta-bil and follow the label on the bottle.

Thanks for your reply