(800) 853-2651
SHOP NOW

Carb or ignition problem on 520

D

drastic dave

Member
Tractor runs rough buts smooths out when choke stays out a little bit. Is it a carb problem or ignition problem or a little of both.
 
I've had a JD 60 act up and pull the choke out and it helped. Well it turned out to be a bad condenser. So it is not always a carb. issue.
Try hooking up a timing light and mount it to where you can see it and look for irregularities as it acts up. May help from chasing the wrong thing.
 
You simply need to trouble shoot a bit.
#1 check that you have a good blue/white spark at the plug wires that jump a 1/4 inch gap or more.
#2 pull the carb drain plug and make sure you have a good steady flow of gas that will fill a pint jar in less then 3 minutes.
#3 when was the last time you service the air cleaner and dumped the mud and water out and filled with fresh oil
 
I had similar issues with my 630. I tried everything to no avail, short of buying all new parts. My older brother, a mechanic of 50 plus years who can fix anything, took a look at it and found that someone had installed the wrong points....it ran well at idle, but at higher revs, one side of the points would actually ride up slightly, such that the point gap became erratic. Slowed down, and they went back in place. The correct set were put on and it ran like new. Sometimes best to admit defeat and let the pros at it. Cost me only a set of points and a beer...plus a chunk of my pride!lol

Ben
 

If pulling the choke out helps hot or cold engine, it's a air induction leak or carb problem.....
 
Worked on the points just a bit and rough adjusted the carb. Cleaned out the air cleaner. With all that it?s running pretty good now. Thanks for the input
 
You must log in or register to reply here.

Similar threads

R
Up draft carb issues.
Replies
16
Views
622
rustred
rustred
J
3020 Starting Issues
Replies
3
Views
136
Tx Jim
Tx Jim
Jarrod32
JD M stalls
Replies
5
Views
272
Jarrod32
Jarrod32
M
John Deere 1010 dozer not starting
Replies
6
Views
448
Dan in Ohio
Dan in Ohio
C
Carb settings with pertronix electric ignition
Replies
2
Views
262
zuhnc
zuhnc
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.

Copyright © 1997-2024 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

Back
Top