60 hp NO FIRE

[ray914]

I'm stumped, I bought this motor a couple of weeks ago, it didn't have a trigger assembly so I ordered one. It came in, like a kid at Christmas couldn't wait to install. I put it on and no fire. I have limited knowledge of this particular motor. Can anybody explain where I should start? I've got 12 volts to the + side of my rectifier but that's it. Thanks in advance for your help. It's a 1986 60 hp 3 cylinder serial # A197495 the trigger assembly I ordered was SIE-18-5797.

 

[IGIFF]

Re: 60 hp NO FIRE

It is almost unheard of to have a trigger coil go on all cylinders.If there is no spark at all the first thing to check is the stop circuit,easiest and quickest way to do this is to disconnect the main harness plug to the control box,by doing this you are disabling the stop cicuit,do this with all plug wires disconnectedand connected to either plugs or spark tester.Then jump pos to the yellow/red wire at the starter solenoid to activate starter to spin motor and check for spark.If you have spark then you have faulty wiring,stop switch or ignition switch.The ignition system is charged by the stator,nothing to do with 12V system.

 

[ray914]

Re: 60 hp NO FIRE tested

Re: 60 hp NO FIRE tested

Okay I checked the volts on my blue wire from my stator it reads 94 volts? I turn the ignition to the on position spun it over on a fresh battery with my fluke meter set on dc volts and the ground to my engine ground and the red lead to the blue wire from my stator? I also took my black and yellow wire at the switch box no change. When I bought this motor it didn't have a trigger assembly at all.I had a negative reading on my red wire? STATOR?????????

 

[ajgraz]

Re: 60 hp NO FIRE

Assuming the meter is a DVA?

At cranking speed, blue wire (low speed) to ground should give 200-300VDC, red (high speed) should give 20-90VDC. At 1k-4k rpm, blue should give 200-330VDC, red 130-300VDC.

(Just DVA tested my 3cyl stator today, blue wire gave 275VDC at cranking speed; red wire gave 62VDC at cranking speed, 130VDC at 1000rpm, 250VDC at 2500rpm)

Sent you a PM in case you decide it is your stator.