Price to fix a jet ski question?

Question

I just bought a 97 XP sea doo jet ski.

it has a brand new motor, but it cuts out when on full trottle. You just take the key off n it starts back up again n runs for a little than does it again.

My friend who works on jet skis says its probably a computer problem

Anyone know roughly how much that could be?

thanks

Answer 1

If it only cuts out when the throttle is wide open and runs well at other throttle settings, you might be over revving and the rev limiter is shutting the engine down.   This would be caused by an impeller with too low pitch.   Try running at less than full throttle for an extended period of time.  If it runs well, change the impeller to a higher pitch.