how to get a rock out of my impeller on a 1993 seadoo?

[John R]

my grate is gone an i ran the seadoo on the shore now it runs good on half throttle but in full it seames to slip,i now when i get weedes in there you just pull them out but i hear a rock in there,please help me

[stewpid]

maybe, just maybe, take the spark plugs out, tilt the ski on it's tail, and turn the engine backwards ** hand and it will fall out. if you don't know backwards, spin the starter while watching the shaft. if that doesn't work, you'll have to remove the impeller.