[apache1875]

I was changing trim switch on shifter,put set screw in to far. went into switch
sparked and blew lower inline fuse. I replaced fuse, put shifter back together and now it wont turn over. I have good battery.You can hear the click from the choke, but nothing else. please help.

[Bob37814]

Just a shot in the dark but have you checked to see that the shifter is in neutral? My quicksilver box does this. There is a hairline in mine between actual neutral and just enough so the safety switch will engage...Wiggle it a little bit back and forth and see if you can get it, Let me know

[apache1875]

Yes I tried starting it and moving shifter. I also tried swaping a selenoid. It Does turn over by jumping selenoid. This is a 89 mecury 3 cylinder.

[outhere99]

My '86 50hsp has a 20amp fuse on the engine as well. It's right next to the starter. Have you checked that? I'm not sure if thats for the starting, though.

[MadProps]

check to see if there is a neutral safety switch that you may have also damaged
in the shifter

[lots of boats]

Take the cowling off, make sure it is in neutral just in case, take the plugs out of the engine, and put them in the boots where you can see them, where they can ground and where they wont bite you, take the yellow black wires from the key kill switch and the safety switch, if there is one, off the CDI box, take a jumper wire and jump the starter like you have been doing. It should crank fast and spark. If it does hook up the switch wires one at a time to see if you can find a ground. The most common problems are the key and the safety or start in gear switches, they are fussy little things and get bumped and corroded.