RE: ultra 150 jet ski prob help plz
Dont even waste your time... I am here in this forum for exactly the same reason as you...
We have 4 ultra 150s, yes 4 of them, none of them start first time out...
my solution... remove all plugs, clean them, spray a little WD40 into each cylinder
try starting the ket ski. If it kicks and runs just one little bit (it wont idle) and you are certain it is running on fuel, not WD40, put it in the water, start it and give it gas. It will splutter and cough until you get enough heat into the plugs to dry them out and then it will work well.
Ours are brand new fuel injected BTW.
What I am hoping someone can answer is....
Can I use different plugs, something a bit hotter??? These are not used for racing and surely with a 5.8:1 CR detonation is a bit less likely. Is it safe to use a BR7 plug instead of a BR9????
Anyone with past experience???