johnson 1956 no spark need help

A

aaind

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got out an old one the other day ,put in tank no spark ,so took flywheel off sure enough black wire top of back coil had rubbed ,cleaned up points ,put peice of tape on wire ,flywheel back on spark on front or top only , took apart later now no spark at all .
Later got out a different 7.5 was going to steal coil off ,found the hole stator was brand new looking ,put the hole thing
on ,top spark only ,and as the first ,i fooled around now got NO spark at all ,what to do ???
 
nwcove

nwcove

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Re: johnson 1956 no spark need help

sounds like its time to have a close look at things. are the points super clean and gapped to 020? are the coils modern or original? have you had a look at the plugs? are they champion j4j or champion j6c's.....or some other brand?
 
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aaind

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Re: johnson 1956 no spark need help

yes and yes ,but what are the odds of two units doing the same thing

top works and after tighing up cleaning ,both times i got no spark zip

could somthing be shorting out the hole deal
 
nwcove

nwcove

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Re: johnson 1956 no spark need help

need a third yes! lol. but the odds are long for both units to do the same thing, but obviously its happening. try cleaning the points through the inspection hole, and see if you get any fire ?
 
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aaind

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Re: johnson 1956 no spark need help

nwcove said:
need a third yes! lol. but the odds are long for both units to do the same thing, but obviously its happening. try cleaning the points through the inspection hole, and see if you get any fire ?
Click to expand...

Well lets take a look here the things that make spark are flywheel coil condseror points plug wire and plug

never had spark on the rear had it on the front then all went away
 
nwcove

nwcove

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Re: johnson 1956 no spark need help

jmo, but as mentioned, id try the easy stuff first. dirty points are the most usual cause of weak/no spark and they can be somewhat cleaned without pulling the flywheel. other than that, pull the flywheel, and break out the multi-meter. ( if both motors sat around awhile there are many spots for corrosion to cause issues)
 
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aaind

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Re: johnson 1956 no spark need help

yes ,did not say it but have had flywheel off many times ,even changed condenser back and forth ,going to try cleaning points ,what do you use ?
 
nwcove

nwcove

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Re: johnson 1956 no spark need help

i use a a strip of emery cloth, followed by a a stip of plastic dipped in acetone or brake cleaner. some will say not to use emery cloth or paper as it may leave deposits on the contacts, but ive had no problems so far. ( just opening the points and inserting a strip of white paper, then closing them, can tell a alot. if you see a black circle on each side of the paper....points are dirty, real dirty. lol)
 
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aaind

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Re: johnson 1956 no spark need help

Well well never too old to learn a trick,your white paper deal really works ,got all kinds spark now,and ran it runs really good
Thank You
 
nwcove

nwcove

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Re: johnson 1956 no spark need help

glad to be of help, but make sure to clean those points properly, my "fix" is just a quick fix. happy boating!!
 
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aaind

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Re: johnson 1956 no spark need help

take a look
THANKS AGAIN

 
nwcove

nwcove

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Re: johnson 1956 no spark need help

the old motor is in great shape....and does idle nice and slow! ( just had my 58 7.5 johnson out for its first boat run since converting to fuel pump.....great way to spend a sunday afternoon!)
 
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aaind

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Re: johnson 1956 no spark need help

Do you like the convention?
Do you think it's better I don't want to blow up
 
nwcove

nwcove

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Re: johnson 1956 no spark need help

jmo, but i prefer the conversion over the pressure tank set up, and it has nothing to do with the "so called dangers" of pressure tanks. its all to do with how quick i can get a replacement part if needed. i can get a b&s fuel pump same day, but a rebuild kit for a pressure tank could be days or weeks coming. and i really dont want to spend $$ on parts to have on hand that i may never need.
 
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aaind

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Re: johnson 1956 no spark need help

By the way I do know the difference between Johnson and Evinrude ,the 56 Johnson is the one I was taking parts off,I think this one is a 57 without looking it up
 
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