you don't, its a self mixing machine just keep adding more.
The engine size is Yamaha WR500 in a 1993 waverunner, the engine size is right in the name of the jet ski.
500cc
Two Stroke
To determine the model number of a Yamaha Waverunner with the engine serial number 503820, you would typically need to refer to Yamaha's database or service manual, as engine serial numbers can correspond to specific models based on production year and specifications. However, without direct access to Yamaha's records, I cannot provide the exact model number associated with that engine serial number. It's best to consult a Yamaha dealer or check the manufacturer’s documentation for precise information.
To winterize an 800 cc Yamaha Waverunner, start by flushing the engine with fresh water to remove salt and debris. Then, change the oil and oil filter, and add fuel stabilizer to a full tank of gas to prevent condensation and fuel degradation. Remove the battery, clean it, and store it in a cool, dry place. Finally, cover the Waverunner with a breathable cover to protect it from dust and moisture during the winter months.
There are three serial numbers on a Yamaha WaveRunner - a HIN number, an Engine and a Primary ID number. It is the latter that we use for general identification purposes and is stamped on a label attached inside the engine compartment.
on any engine good compression would be anything over 100psi, though really good can be up to 150+ anything under 90psi and your engine will not run.
you must first put on your yamaha hose adapter for your garden hose. then without turning the water on plug the hose into the yamaha. there should be a place to put the hose in the engine compartment. then start your engine the turn the water on. make sure the water never on when the engine is off. let the pwc run at idle speed for 240 seconds (4 mins). then turn the water off and shut down your engine. gracias
to flush the fx140 you lift up back of seat and you will see a small black hose with a plug in it . you pull this plug then put your Yamaha hose adapter onto the end of your hose and connect it to the black hose .turn on the water then start engine let run 2 minutes and your done
2.7L -------2.9L FILTER CHANGE
yes it will but you need to change the front brackets up
3.35 litres without oil filter change 3.5 litres with oil filter change