Yesterday's Tractor Co.
Shop Now View Cart
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile    Log inLog in 

4 Star Stumbling


 
Post new topic    
View previous topic :: View next topic  
Author Message
J.A.R
Regular


Joined: 13 Dec 2017
Posts: 131
Location: Wisconsin

Report to Moderator

PostPosted: Fri Mar 15, 2019 5:09 pm    Post subject: 4 Star Stumbling Reply to specific post Reply with quote

Went to start my tractor this morning been sitting about a week fired right up but was missing alittle. Let it run till it warmed up and the miss went away. However after moving some snow alittle later I noticed when I let the clutch out it would stumble every time but then run strong after the clutch was completely engaged. Dont know if I should be looking at the carb or hopefully not the governor. Carb is rebuilt and all electronics are new. Tractor worked great the last snowfall.
 
Back to top
View user's profile
T.R.K.
Tractor Expert


Joined: 14 Apr 2013
Posts: 2031


Report to Moderator

PostPosted: Fri Mar 15, 2019 5:59 pm    Post subject: Re: 4 Star Stumbling Reply to specific post Reply with quote

I know Dad's ZB wants more fuel in the Winter. I would try turning in the idle screw 1/4 turn. Turn the main screw out 1/4 turn. You can
always go back to your original setting if it doesn't work.

The reason you turn the idle screw in is its an air bleed. It meters the amount of air in the idle circuit, not the fuel. So to make fuel
mix richer, you restrict part of the air by turning the screw in. At least I think the carburetor on a 4star works the same way.
 
Back to top
View user's profile
J.A.R
Regular


Joined: 13 Dec 2017
Posts: 131
Location: Wisconsin

Report to Moderator

PostPosted: Fri Mar 15, 2019 6:08 pm    Post subject: Re: 4 Star Stumbling Reply to specific post Reply with quote

I will give that a try then. Just kinda wondered about that cuz iv never had to adjust the carb on my U but I'm open to any an all opinions thanks again.
 
Back to top
View user's profile
MMDEL
Long Time User


Joined: 29 Dec 2007
Posts: 980


Report to Moderator

PostPosted: Sat Mar 16, 2019 11:20 am    Post subject: Re: 4 Star Stumbling Reply to specific post Reply with quote

Did you pull out the choke just a tad and see if that makes any difference. That would indicate it might be a little on the lean side especially in cold weather. If so then turning the load needle out a little. But I wouldn't mess with the idle adjustment unless it is not idling like it should.
MMDEL
 
Back to top
View user's profile
:   
Post new topic    Yesterday's Tractors Forum Index -> Minneapolis Moline All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  

TRACTOR PARTS TRACTOR MANUALS
Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). We have the parts you need to repair your tractor - the right parts. Our fast shipping, low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

YT Home  |  Forums

Modern View Forum powered by phpBB © 2001, 2005 phpBB Group

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