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A few questions

  • Thread starter Nelson Fletcher
  • Start date
N

Nelson Fletcher

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"I have a 20hp mariner ser# A7

"I have a 20hp mariner ser# A701409 with new coils and wires I picked it up awhile ago and it needed some parts, once I was finished I fired it up, it ran great and all of a sudden no spark, I tested the stator and trigger resistance is a bit low trigger by approx 40 and stator by 60 is this enough to not produce spark? I tried disconnecting the kill switch will no results, any help will be greatly appreciated and the last question the motor has a aux stator both wires run to a block , what is this used for?

Nels"
 
"Well seems with a bit more di

"Well seems with a bit more digging lol the aux stator is for charging so at a later date I guess get a rectifier and I can charge my deep cycle I used with the boat, but the stator/ trigger questions still stand also one more question from the pos/neg terminals on the coils should they show continuity to eng ground at all?"
 
"resistence changes with tempe

"resistence changes with temperature.
trigger test 650-850 between leads

coil test, .02-.04 between pos and neg
,800-1100 between coil tower and neg terminal"
 
"I will check that out in a fe

"I will check that out in a few mins thank you, the thing is I get spark sometimes and sometimes not, I went out yesyterday and she fired up several times on the lake no problem, I go out this morning and check and no spark at all"
 
"here are the results

trigg

"here are the results

trigger 760
stator low 142.6 high 3100
coil pos to neg .4 on both
coil tower to neg I lost you on sorry

But I have no visual spark at all and none the old fasion hold onto way either lol, any ideas?"
 
"That's starting to sound

"That's starting to sound like a bad ground, bad kill switch/key switch (as applicable) or just a bad/loose/frayed/rotted connection somewhere..."
 
"Its wierd I have looked at al

"Its wierd I have looked at all the wires I can find and they look great, I did try the disconnect the kill switch with no sucess but I also test the kill switch (push button) wire (blk/ylw) to ground and it makes no continuity at all when pushed or released. But yesterday when it was running fine the kill switch worked fine. Any other ideas?"
 
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