Garden Tractors - Allis Chalmer Big Ten. I got Spark Gas butNo Start

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Allis Chalmer Big Ten. I got Spark Gas butNo Start

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206654
Printed Date: 10 May 2025 at 6:32pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Allis Chalmer Big Ten. I got Spark Gas butNo Start

Posted By: MPReno98
Subject: Allis Chalmer Big Ten. I got Spark Gas butNo Start
Date Posted: 10 May 2025 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!

Replies:

Posted By: steve(ill)
Date Posted: 10 May 2025 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 ??

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Like them all, but love the "B"s.