1977 Jawa

Jacob Taylor /
jakey420nc50
May 02, 2020 03:21PM

Hello, I’m currently missing a part of my setup and or not quite seeing it the right way. Was parked in 1987 with the Thyristor and the black box unplugged. Was thinking of replacing with a link a helpful dent on Facebook or the one on treats but they price match. Could I have some help! What am I missing for spark? Besides the piece from treats I don’t see any yellow wire like the pictures, she turns over runs fine all together besides needing a good clean and tune up. I’m ADHD so pictures help a LOT if anyone has any please comment :)

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Re: 1977 Jawa

Rich Condor /
desmobro
May 02, 2020 03:33PM

http://www.jawamoped.com/JawaMoped_Electrics_-_ignition.pdf

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Re: 1977 Jawa

Rich Condor /
desmobro
May 02, 2020 03:36PM

Looks like the blue wire might be “ yellow” on the diagrams

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Re: 1977 Jawa

Jacob Taylor /
jakey420nc50 OP
May 02, 2020 05:05PM

The coil pack that’s screws in but not hovering the wheel is it possible the previous owner mounted wrong ?

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Re: 1977 Jawa

Rich Condor /
desmobro
May 02, 2020 07:29PM

Maybe

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Re: 1977 Jawa

Rich Condor /
desmobro
May 02, 2020 07:35PM

If you click that link and make sure yours is all set up just like that read that whole thing down at the bottom it gives some diagrams it also gives you how many OHMs to test for with a volt meter

You should be good to check for spark once everything is set up like in that write up

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Re: 1977 Jawa

kenny s /
kennys
May 03, 2020 02:18PM

The second picture you posted shows your alternator. As opposed to a cars alternator, the one pictured is a silver metallic magnetic piece. Under the alternator is the charging coils. You don't have the yellow wire because that is the new style. You can upgrade to the new style but you probably don't need to.

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Re: 1977 Jawa

kenny s /
kennys
May 03, 2020 02:27PM

This is the piece that would go around your alternator from the second pic and the charging coils would be screwed onto it if you truly wanted to update

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