I am not familiar with the farmall cub. Maybe the magneto turns opposite of the A, B , C H & M. But the A mag turns clockwise when facing the impulse,(magneto in your hands in other words) so , you push magneto toward engine block, turn engine to just a few degrees after top dead center, never top dead or before, then pull mag toward you until it trips. like I said before, often times the wear in magneto will let it trip before it is supposed to, so that is why I said to turn it several times with switch off while checking for that early trip. It may not trip at all if worn enough. I repaired a quite a few of those mags and the tips of the weights wear, the roller they strike to hold the windupl mechanism wears as does the pivots of the weights. All of these can cause the problem he is having with kicking. That mag has a 35 degree spark lag with impulse so if the impulse does not engage you will get a spark,(although very weak) at any where from trip set to that 35 degrees before. Major kick back. Reason I said to take plugs out is so for easier observation from easy turning and you will also not be sucking gasoline into the engine. The other timing is rotor to cap and has nothing to do with when the spark occurs, just so rotor crosses the contact in dist cap at the proper time to transfer spark from rotor to cap. Also, a magneto like this is also a distributor. So many guys call battery ignition systems distributors. ?Well, with a multi cylinder engine you have to DISTRIBUTE the spark weather you have a magneto or battery ignition system, so, they each have a distributor.
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 ]
Today's Featured Article - Ford N-Series Transmission/Hydraulic Fluid - The Full Story - by Llamas. The transmission fluid in an “N”:-series tractor lubricates the transmission, differential, rear wheel bearings, PTO and hydraulic pump drive, and it also cats as the working fluid for the hydraulic lift. In 9N/2N models, it also lubricates the steering sector and shaft system. The owner’s manual for the 9N and 2N models specified the use of only two fluids. They were STRAIGHT MINERAL OIL SAE 90 (above freezing) and
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
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.