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1. 

   Joined: Apr 11, 2008
   Posts: 181

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   johnfin

   Member

   from auburndale

   When the piston is up and both valves are not pressed the engine is on the fire stroke, right. I dont want to be 180 out

    

   johnfin, Oct 23, 2021

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2. 

   Joined: Apr 29, 2017
   Posts: 4,280

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   ekimneirbo

   Watch the intake valve. When it just closes, continue rotating until your TDC mark lines up. You will be on the compression stroke if you do that.

    

   ekimneirbo, Oct 23, 2021

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   427 sleeper, Deuces, Bob Lowry and 3 others like this.
3. 

   Joined: Nov 3, 2009
   Posts: 23,907

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   Deuces

   Depending on what cam and or engine, the plug fires at 4-12° btdc... On the average...

    

   Deuces, Oct 23, 2021

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