Milling builds a ton of heat. This last maple I did, we finished under a dusk to dawn light and it was dark. As I cut I noticed my muff had a cherry red spot about as big as an extra large egg (how's that for a description, lol). Never noticed it in the day. From now on, I'll stick w/ oe. I don't want to be changing a coil every year.
I think with coils, as with most electronics, if they are going to go bad they will do so early. If they hold up for a while, they will most likely last a long time. Less quality control with AM, but you can buy several of em for the price of OEM, and often you won'd know the difference.
My father's 394 had a simular issue where it would not hot restart, pulled sparkplug and it was wet as it was not firing the spark/too weak spark. Pulled the old coil out and it was caked with sawdust and melted/cracked. Previous owner did not clean it at all is my guess and it does sit under the hot muffler. Put a good used oem coil on and it was fixed. Took me a while to figure it out, was about ready to give up on it. But it was worth it to see my father happy with his saw.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.