(800) 853-2651
SHOP NOW

NAA quits running after 5 minutes

P

petertay

Member
This NAA runs very well. Starts within seconds; has electronic ignition. Idles smoothly at 700 RPM. Purrs at WOT. But after running for five minutes, it
put-puts and then quits. Seems as if it has run out of gas. Seems like a fuel problem. Have drained the tank, it is clean. Pulled the shut-off valve and
the screen is clean. Fuel line is unobstructed. Little screen filter at carburetor is clean. Five minutes after it has quit, fires right up again and runs for
another five minutes.
Any ideas? Almost seems temp related. Never does get up to operating temp, because it doesn?t run that long. Thanks for your thoughts.
 
You need to do two tests. First, pull the plug at the bottom of the carbruater and see if it will fill a pint jar in 2 or 3 minutes. If so then you don't have a fuel flow problem. Second, when the tractor starts acting up, and quits, immediately pull the coil wire from the distributor cap and hold it a good 1/4 inch from a clean spot on the block and with the key still on crank the engine. You need so see if you are getting a good strong spark out of the coil. My guess is that you will not. But do these tests first, don't go out and start throwing parts at it. That can get expensive. If you do get a good fuel flow and a good spark let us know and we can go from there. By the way, you never said if this is an OEM 6 volt system, or a 12 volt conversion.
 
In answer to your questions: Gas cap vents okay. Still a 6V system. Strong spark when it quit. But the gas flow test shows the problem. Plenty of flow from the tank to the carb, but pulling the plug from the carb, doesn't come near a pint in 3 minutes. About half that. So, we pull the carb and clean it. THANK YOU Guys.
 
Thanks for the update. Sounds like a needle and seat or float adjustment problem. Let us know if you solved it.
 
You must log in or register to reply here.

Similar threads

Daniel5555
Plowed Snow for Three Hours with Jubilee and Now Stalling
2 3 4
Replies
72
Views
2K
Jim.ME
J
H
4210 quits running after 30 min under load
Replies
6
Views
481
HCooke
H
D
3000 gas tractor running rough
Replies
8
Views
176
Sean in PA
S
Superbros8
Ford 4000 poor running when warm
2
Replies
35
Views
681
Superbros8
Superbros8
M
4020 Running rough
Replies
11
Views
615
dieselade
D
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