Farm Equipment - WD 45 Carburator

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WD 45 Carburator

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=182665
Printed Date: 11 Oct 2025 at 5:50pm
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Topic: WD 45 Carburator

Posted By: Ted in NE-OH
Subject: WD 45 Carburator
Date Posted: 20 Aug 2021 at 5:22pm

I cleaned the carb now I need to know where to set main jet and idle jet for a starting point. Thanks

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CA, WD, C, 3 Bs, 2 Gs, WC, I-400, 914

Replies:

Posted By: Allis dave
Date Posted: 23 Aug 2021 at 6:56am

The owners manual says where to set it. Completely from memory and probably wrong, may 1.5 turns?

Posted By: DrAllis
Date Posted: 23 Aug 2021 at 8:13am

Idle mixture jet usually 1 1/2 turns out from softly clear shut. Main jet, just open it up a lot. Warm up the engine and set at full throttle. Turn main jet inwards until the engine begins to stumble. Back out 1/2 to 1 full turn and try it. If it stumbles on acceleration, open 1/4 turn at a time until it quits doing that.