Hi all, thanks for the add to the forum. I've been working on my dads boat today trying to get him up and running for the weekend. If anyone is willing to drop some advice it would be much appreciated!
This engine appears to be a 1985 60HP Mercury triple after much googling of serial and casting numbers.
I discovered last trip to the lake that the stator went out... essentially no voltage on the DVA while cranking. I tossed a new one on today. It fired right up, ran for 5 minutes on the muffs, sounded great. Hot started fine, gave it a blip of throttle, it stumbled and stalled. Refused to restart. Back to no spark. Heres what we've got:
Stator blue to ground: 6.48kohms (spec is 5.8-7kohms). 495V DVA (spec is 100-400V)
Stator red to ground: 151ohms (spec is 135-165ohms). 55V DVA (spec is 25-100V)
Everything in spec Except the DVA on blue wire, its a bit of an overachiever. Has anyone come across a new stator being 'too hot' killing a switch box?
Trigger ohm readings are clocking in high, a bit over 2000 ohms (spec is 800-1400) but the DVA comes out fine at approximately 9V (4+ is spec). Would you toss a new trigger in given the resistance or run it?
Lastly what seems the most telling to confirm the switchbox is bad, the DVA on the Blue stator lead to ground is less than 100V when connected to the box, but the 495V when disconnected. The cdi electronics manual says this verifies a bad box. My debate is whether to just replace the box tomorrow, or if I should do another new stator, and trigger first as well. I was trying not to throw parts at it, but I think now it needs one of everything! lol
Last test I didn't do, is to confirm voltage isn't bleeding to the kill switch line from the ignition switch. I understand a failing switch can kill a box by bleeding over 0.3v of battery voltage in. He's been complaining of a sticky and finicky ignition switch come to think of it.... I think I'll unhook that kill tomorrow and run a new momentary switch, or choke it to death to stop this weekend to be safe.
Anyways, sorry for the novel. If anyone is up for giving me a sanity check or some thoughts on the above its greatly appreciated. Thanks!
This engine appears to be a 1985 60HP Mercury triple after much googling of serial and casting numbers.
I discovered last trip to the lake that the stator went out... essentially no voltage on the DVA while cranking. I tossed a new one on today. It fired right up, ran for 5 minutes on the muffs, sounded great. Hot started fine, gave it a blip of throttle, it stumbled and stalled. Refused to restart. Back to no spark. Heres what we've got:
Stator blue to ground: 6.48kohms (spec is 5.8-7kohms). 495V DVA (spec is 100-400V)
Stator red to ground: 151ohms (spec is 135-165ohms). 55V DVA (spec is 25-100V)
Everything in spec Except the DVA on blue wire, its a bit of an overachiever. Has anyone come across a new stator being 'too hot' killing a switch box?
Trigger ohm readings are clocking in high, a bit over 2000 ohms (spec is 800-1400) but the DVA comes out fine at approximately 9V (4+ is spec). Would you toss a new trigger in given the resistance or run it?
Lastly what seems the most telling to confirm the switchbox is bad, the DVA on the Blue stator lead to ground is less than 100V when connected to the box, but the 495V when disconnected. The cdi electronics manual says this verifies a bad box. My debate is whether to just replace the box tomorrow, or if I should do another new stator, and trigger first as well. I was trying not to throw parts at it, but I think now it needs one of everything! lol
Last test I didn't do, is to confirm voltage isn't bleeding to the kill switch line from the ignition switch. I understand a failing switch can kill a box by bleeding over 0.3v of battery voltage in. He's been complaining of a sticky and finicky ignition switch come to think of it.... I think I'll unhook that kill tomorrow and run a new momentary switch, or choke it to death to stop this weekend to be safe.
Anyways, sorry for the novel. If anyone is up for giving me a sanity check or some thoughts on the above its greatly appreciated. Thanks!