McCulloch 2 stroke chainsaw won't get spark?
Its the 16 inch 2.0 CID. McCulloch does not exist anymore as many may know and i'm not getting any spark because of the magneto/ ignition i think it is, that worries me because its a great little chainsaw and i don't wanna have to scrap it because of a little part i can't replace. Is there anything i can do if this is the problem afterall?
The thing is, there isnt any rust at all on the magnet, and i don't see how adjusting the magneto to make a smaller gap would help because its not like it moved or anything. I did notice that where the shut off wire and spark plug wire go into the ignition housing, theres a gap between the silicon "which was suppose to seal it" and the housing itself. Could moisture have gotten inside the ignition area? Its not like its been sitting outside, its been inside a garage its whole life, but maybe moisture would still build up?
I think my best bet is to find a new ignition at this point. I'm almost positive thats the problem because i have a sore shoulder from pulling it so many times. I even tried a little ether but it hasn't given so much as a pop.
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Some times the Magneto can’t build a charge because of rust on the magnet that’s pressed into the flywheel. See if the solid area in the flywheel (the magnet)is rusty and if so then take some fine grit sandpaper and clean off the magnet.
Also there are certain clearances that the magneto needs to build the charge. A feeler gage should do the trick (the same kind used to set points in old automobile ignition systems) If you don’t have a feeler gage I’ve made them from aluminum can tops. Just remove the flat part of the top of any aluminum can top (the part that folds down when you pop the top) by bending it back and forth until it breaks off. Then loosen the magneto (usually two screws) rotate the flywheel to where the magnet on the flywheel is directly across from the magneto and place the soda can top between the magneto and the magnet (one side at at time) and tighten the screws back to secure the magneto. It’s just like adjusting the "gap" on automobile spark plugs. The closer the clearance the likely-hood of getting a spark increases; the farther the gap the engine is harder to start (especially a two-stroke) but you get a "hotter" spark. You might have to use some thicker or thinner depending on what clearance the magneto needs to build the charge
Hope this helps!
All I can suggest is double check all your connections and the cut off switch, make sure the plug it good. A magneto shouldn’t go bad but if it did maybe you can cross match something. Good luck.
Have you tried to order the part? With the make, model numbers you may be able to order a new one. I know the ignition modules for small briggs engines run about $60. Also the module will have a brand and numbers on it. It may very well be the same thing used on weed trimmers and leaf blowers or other brands of saws. If you can get someone to cross reference it for you.