Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Farmall & IHC Tractors Discussion Forum

300U Missing at Low Idle

Welcome Guest, Log in or Register
Author  [Modern View]

05-06-2012 19:32:37

Report to Moderator

300 utility, still 6 volt positive ground. New points and plugs, timing set. Runs well at high rpm, good power. When dropping back to low idle, will miss but not in a regular pattern. Idle is set around 500-550 rpm, will stay at that and not die off. Any suggestions?

[Log in to Reply]   [No Email]
david G

05-07-2012 13:51:36

Report to Moderator
 Re: 300U Missing at Low Idle in reply to Mfan, 05-06-2012 19:32:37  
I would check the valve clearance, could have one wide.

[Log in to Reply]  [No Email]

05-06-2012 20:25:59

Report to Moderator
 Re: 300U Missing at Low Idle in reply to Mfan, 05-06-2012 19:32:37  
If it just pops and flips the rain cap every few seconds it is pretty normal. I would adjust the idle mix and timing to spec, and if it is inconsistent, and as described, leave it alone. Jim

[Log in to Reply]  [No Email]

05-06-2012 19:58:49

Report to Moderator
 Re: 300U Missing at Low Idle in reply to Mfan, 05-06-2012 19:32:37  
Idle circuit in the carb is plugged. Try Seafoam first before tearing into the carb.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums

Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy