1996 Seadoo SPX trouble starting

[ggage2001]

I just de-winterized the thing, put new plugs in and now it won't turn over unless I pull the plugs out then it turns over easily. I am not a 2 stroke mechanic, is there a pressure relief valve not operating correctly? It spins like a champ with no plugs, but once the plugs go in it seems to lockup or turn over very slow. Any suggestions are appreciated.
Thanks...

 

[jsun3701]

Check the charge on the battery. It takes less power to move the crank/pistons when there are no plugs in. Take it to autozone they will load test it for free.