Sport Jet 90 Regulator Bad/No Start

[lmurtagh]

94 Sport Jet 90 with Red Stator. CDI as far as I know. My regulator burnt up a couple days ago. See pic. I think it happened while I was driving last week...she died dead as a door nail at WOT. I could smell burning plastic or something. In addition to the pictured damage, my battery terminal looks a bit burnt. Gave it a couple minutes and it started right up.

Now it will not start. Cranks like a dream but it wont turn over...wondering if I have lost my spark. Could the regulator outtage cut out the spark? Or does it just send charge to the battery?

Also wondering what would cause the regulator to burn up? Can you explain the voltage feedback on shutdown problem?

Looking for a quick fix to get back out on the water!

 

[kend301]

Re: Sport Jet 90 Regulator Bad/No Start

Yes you need to start by ordering a regulator . once you get it you can do some tests . Clean the battery terminals and there is nothing you can do to prevent the feedback , it is from a pre charge that disipates when the coil does not fire on shut off , the best defense is good grounds . Hope it did not take out the switchbox . In the mean time you can do the tests in the first post "Sport Jet Basics" to begin to test your system until the new part arrives ,

Part numbers are :
Merc 815279t4 or 815279t5 both are the same part.
CDI 194-5279 (good aftermarket stuff)

Both should be available at the parts store on this site !