99 Yamaha C90 No Electrical Power

cabc23 · #1 July 13th, 2002, 09:14 AM

I just replaced my key switch in the control box.

It was damaged in an attempted theft. I have a side mount (703) control box. After replacing switch nothing happens when I turn the switch.

I checked the connections three times and checked all the fuses I could find. There is no power to the red power wire going to the solenoid even before the fuse and while turning switch. Motor is dead. I don't know what else to check. Thank you for your help.

steelespike · #2 July 13th, 2002, 10:12 AM

A service manual would be a great help for you

on this and many other service problems.

Try the library,the tab at the top of the

page,amazon.com,ebay,etc.

Mean time trace with a meter from battery to switch,switch to solinoid all hot side connections.Then all ground side connections.Be sure all switch connections are same as originals.A manual should give you a schematic

and a test procedure for the start circuit.

Boating industry of america color code chart at:

www.brokeboats.com,says red is unprotected

12v from battery,red w purple is protected 12v from battery,purple is 12v from ignition switch, yellow w red is ignition sw. to starter solinoid,Black w yellow magneto short to kill,yellow w black choke,black all grounds.

Hope this is some help.

cabc23 · #3 July 19th, 2002, 07:48 PM

I found my problem. The neutral safety switch was damaged in the attempt. Thanks for your help.