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ZA timing mark


 
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DIM
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Joined: 29 Sep 2013
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PostPosted: Fri May 10, 2019 10:44 am    Post subject: ZA timing mark Reply to specific post Reply with quote

I forget where to put timming mark on fly wheel to use a timing light I know it before TDC. but how far.
 
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molinegb
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PostPosted: Fri May 10, 2019 11:46 am    Post subject: Re: ZA timing mark Reply to specific post Reply with quote

1 7/8 BTDC on magneto. 2 1/4 on distributor.
 
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DIM
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PostPosted: Fri May 10, 2019 4:17 pm    Post subject: Re: ZA timing mark Reply to specific post Reply with quote

Thanks for the information. I assume It will work on a ZA engine in a R tractor with R fly wheel and A Petronic Electronic Ignition.
 
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T.R.K.
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PostPosted: Fri May 10, 2019 4:46 pm    Post subject: Re: ZA timing mark Reply to specific post Reply with quote

Go with the 2-1/4 if the electronic ignition uses the distruibuitor's mechanical advance.

The magneto has only one advance, when it flips from the start position to full advance. I'm thinking I read that was at about 200 rpm.
 
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MMDEL
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PostPosted: Mon May 13, 2019 5:44 am    Post subject: Re: ZA timing mark Reply to specific post Reply with quote

I'm not sure if the R amd Z flywheels are the same diameter, if not those measurements won't work.
MMDEL
 
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