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

Tractor Talk Discussion Forum

3020 Carb Adjustment

Welcome Guest, Log in or Register
Author 
Jd Family

07-13-2005 09:40:46




Report to Moderator

I am adjusting a carb on a 3020 gas.
There is an adjustment valve on the side which is brass, with a slot for a screw driver and then there is a valve type adjustment on the lower portion of the carb. What are these two adjustments for?

Thanks




[Log in to Reply]   [No Email]
msb

07-13-2005 19:26:02




Report to Moderator
 Re: 3020 Carb Adjustment in reply to Jd Family, 07-13-2005 09:40:46  
The slotted screw is the idle mixture adjustemnt and should be adjusted at 600 engine RPM.Screw it in slowly until the engine starts to lose speed and the screw out until the engine starts to run too rich(rough) then split the difference.The screw on the bottom is the load speed jet adjustment.With the engine running at 2400 RPM, slowly turn the screw in until the engine begins to lose RPM.Then slowly turn the screw out ontil the engine starts to run too rich.Then split the difference.Since the two jets sometimes interact ,repeat the process and fine tune the adjustments.Be sure the engine is properly timed before making these adjustments.

[Log in to Reply]  [No Email]
Jd family

07-14-2005 15:31:08




Report to Moderator
 Re: 3020 Carb Adjustment in reply to msb, 07-13-2005 19:26:02  
Thank you very much that is just what I needed to know and the steps you outlined will make this easy.



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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
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