90 hp sportjet no spark

[DOUBLEDEE]

Hey guys---I have a 1994 sea rayder with a 90 hp sport jet. When I bought the boat there was no spark. I replaced the switch box and the rectifier. The engine had spark and ran for a couple minutes. Now wont run and no spark again.<br />The flywheel magnets were shattered and kind of scraped up the stator. (red) After replacing the flywheel assy the engine wont run and has no spark again. My question is- what could have been damaged by the magnet failure . Is the stator now damaged due to being scraped up? Could this have caused the switch box to fail again?

 

[WillyBWright]

Re: 90 hp sportjet no spark

Welcome to iboats.<br /><br />The stator may have shorted out or broken a wire. You'd need to check for resistance between wires and no continuity to ground. I doubt it would affect the switchbox.

 

[DOUBLEDEE]

Re: 90 hp sportjet no spark

Thanks for the reply. I checked the stator for continuity and it was within the permissable ohm range . I checked it for ground and it was not grounded but the red plastic insulator was completely scraped off and the metal inside was exposed and scraped. ?????<br />I ordered a new stator and hope to install it this evening.

 

[DOUBLEDEE]

Re: 90 hp sportjet no spark

You were right---the switchbox was still ok---I installed the stator and the engine fired right up---ran great. I didnt run it for more than 5 seconds or so because it is on the tralier with no water supply. Now there is fuel filling up the air intake and leaking into the bilge. I tapped the carbs lightly with hammer to possibly free sticking needle valve in carb??? I was thinking maybe run WOT on the water might clear up my overfueling condition. <br /><br />Any thoughts???