Engine Powermore 420cc Model # 4P90HUB

jewisian

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Aug 18, 2015
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Anyone know what the valve adjustment settings should be? Does .005 intake and .008 exhaust sound right?
 

jewisian

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Thanks! I couldn't find the specs for this anywhere.
 

ILENGINE

Lawn Royalty
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.004-.006 intake and .006-008 exhaust set with the piston at TDC compression stroke.
 

jewisian

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Not sure yet. I had to order a starter now. Will let you know when that's done.
Thanks
 
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We had one like this last year on the forum.......

Hard Man 2 Luv I think it was....... He played hell with that engine..... MTD engine made in China I think......
 

jewisian

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Aug 18, 2015
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I got it going. Replaced the starter and it started right up. I set the valves at .004 and .006. Runs good.
Thanks for all the help!
 

curtissa64259

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Dec 27, 2019
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Do anyone know the valve clearance for craftsman riding mower LT 1500 with 420cc engine?
 
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