(800) 853-2651
SHOP NOW

Having troubles getting the MM 602 to fire

J

Jon Pedigo

Member
Having some issues with my 602, the engine will turn over but cannot get it to fire, every once in a while itll fire for a second then go back to turning over. I have replaced everything in the distributor cap, the spark plug wires and sparkplugs. I had it running for a second after replacing these parts and then it died and went back to not firing. What should i look to check next?
 
Firing order? BTDT on mine. Even had it running on just two cylinders. Was running but weak! I had put wires on in clockwise order, not CCW or was it other way around? Whatever. Fella came over and changed the center two I think and it ran great! Felt real dumb!
 
i have the firing order in counterclockwise at 1-3-4-2 from the radiatior on back so someone feel free to correct me if im wrong on that
 
1. Check voltage to input of coil with switch on. Should be near battery voltage. If not there trace back to battery, if ok go to 2

2. Check voltage at output of coil to distributor. Should be battery voltage with points open, zero voltage with points closed. If constant battery voltage look for bad connection in distributor/points circuit. If constant zero voltage look for short in points, condenser, or distributor side feed through or an open between + and - posts of the coil.

this assumes you have a 12 volt - no resistor required coil. If it has coil with ballast resistor check the resistor.
 
ok thanks, i have replaced the condenser and points as well but i will check the voltage in both of those areas. thanks!
 
Fuel? Fill tank with non-ethanol fuel and add some Heat or other fuel treatment. Especially if things have been sitting for a while. Just a thought.
 
You must log in or register to reply here.

Similar threads

R
Electrical issues
Replies
14
Views
570
soaked
S
C
Electronic ignition
Replies
3
Views
529
old
O
jon f mn
Engine troubles again
Replies
13
Views
459
rcgrey
R
C
Electronic ignition again resolved
Replies
5
Views
791
JMOR
J
M
Ford 3000 3 cyl
Replies
6
Views
794
Eman85
E
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