Converting waverunner to premix have a few ques ?

Do I need to change the jetting and what should I change it to and what do I mix it to I think at wide open throttle its 32:1 its a 99 gp800 yamaha what's the best way to get the first mix.in properly I was thinkin of turnin fuel off and runnin out the fuel and it has 1/4 tank and holds 13.6gal so ill dump the 56oz of oil in and then filling it up and either drivin over a bumpy road to help mix it or droppin an air hose in the tank blowin 10psi of air to mix it upthen fire it up will that work my main concern is what to do about the jetting