Allis Chalmer Big Ten. I got Spark Gas butNo Start

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   Sparking blue. Brand new plug.

New fuel line and fuel filter.

Gas is running through.

It cranks but won’t turn over.

Trying to adjust air mixture screw and floater needle valve as well as trying to manually pump the gas above the carburetor…

Had it almost start a few times but can’t quite find the right adjustments on those two and had a friend recommend taking the head off and grind the valve cause he thinks there’s not enough air compression in the motor…

What does all the experts here think? Trying to remodel this but before anything I wanna get it to start run and purrr!

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MPReno98 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 May 2025 Location: Missouri Points: 2	Post Options Post Reply Quote MPReno98 Report Post Thanks(0) Quote Reply Topic: Allis Chalmer Big Ten. I got Spark Gas butNo Start Posted: 5 hours 46 minutes ago at 11:16am
	Sparking blue. Brand new plug. New fuel line and fuel filter. Gas is running through. It cranks but won’t turn over. Trying to adjust air mixture screw and floater needle valve as well as trying to manually pump the gas above the carburetor… Had it almost start a few times but can’t quite find the right adjustments on those two and had a friend recommend taking the head off and grind the valve cause he thinks there’s not enough air compression in the motor… What does all the experts here think? Trying to remodel this but before anything I wanna get it to start run and purrr!

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steve(ill) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 85852	Post Options Post Reply Quote steve(ill) Report Post Thanks(0) Quote Reply Posted: 26 minutes ago at 4:36pm
	you can check compression and verify that.. another possibility is the KEY on the flywheel is damaged and the SPARK is occuring at the wrong time ??
	Like them all, but love the "B"s.