Echo chainsaw no spark

[warby702]

Hi I have an echo 4600 chainsaw that has no spark. has 90lb compression,tried disconnecting kill switch at coil,still no spark,also replaced what echo calls the coil which is the piece the plug wire comes out of. im wandering about the module being bad. any help greatly appreciated

[chandler]

Welcome to the forums! Pull the flywheel and clean the area inside the flywheel , especially the magnet, and clean the stationary mating part with emery cloth. The passing of the magnet over this stationary part causes a break in the current being generated by the coil and creates the spark. Let us know how it goes.

[warby702]

thank you. let you know in a little bit

[warby702]

how do you lock up the flywheel so you can loosen it?

[chandler]

Stick a screwdriver down through the fins, but don't over torque it or you will break a fin. The nut should come off relatively easy with a socket and ratchet, but the flywheel itself may need coaxing with two screw drivers with equal pressure from two sides, prying upward.