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Author Topic: What is the stock ignition timing on a gx390?  (Read 12515 times)

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Offline David B

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What is the stock ignition timing on a gx390?
« on: March 16, 2015, 05:44:31 PM »
I build alot of 5 hp briggs racing engine back in the day. This will be my first honda build.  Anyone know the stock ignition timing?  I like to get as much out my engine as i can. Hope thats is not a stupid question.
Thanks in advance.
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Offline Darkviper

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Re: What is the stock ignition timing on a gx390?
« Reply #1 on: March 16, 2015, 06:32:02 PM »
I thought it was just a key. Are you running billet flywheel or the stock one?
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Offline David B

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Re: What is the stock ignition timing on a gx390?
« Reply #2 on: March 16, 2015, 07:56:27 PM »
I have a billet flywheel.
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Offline George Herrin

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Re: What is the stock ignition timing on a gx390?
« Reply #3 on: March 17, 2015, 04:21:16 AM »
degree it just like you would one of those 5hp motors.
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Offline Darkviper

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Re: What is the stock ignition timing on a gx390?
« Reply #4 on: March 17, 2015, 06:54:34 AM »
Turn it all the way negative is stock timing. I started with that. Got my engine to wear in then put it to 3 part after stock.
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