Since you guys are all about the 2101s, I thought about asking here. Picked up a clean 2101 that would not idle down. Found the intake manifold cracked but replacing that didn't improve the situation. I just got in from tearing apart the saw and found the source of the leak. The upper SEM module screw had fallen out and left an open hole clean thru to the crankcase. Airleak from hell!!
Looks like the loose screw did damage to the flywheel from bouncing around and the fragments actually started to wear thru the ignition module plastic and exposed the core CCW from the screw. I found tiny aluminum flecks all over the module, on the flywheel and sucked into the case. This saw never lost spark so I'm wondering about my chances keeping the original module and replacing the flywheel with a good one. Any thoughts??
I had considered that a dropped crank bearing did the damage to the coil but the mains are tight and smooth.
Do I use anything special to seal the upper module screw to prevent it leaking?
Chris B.
Looks like the loose screw did damage to the flywheel from bouncing around and the fragments actually started to wear thru the ignition module plastic and exposed the core CCW from the screw. I found tiny aluminum flecks all over the module, on the flywheel and sucked into the case. This saw never lost spark so I'm wondering about my chances keeping the original module and replacing the flywheel with a good one. Any thoughts??
I had considered that a dropped crank bearing did the damage to the coil but the mains are tight and smooth.
Do I use anything special to seal the upper module screw to prevent it leaking?
Chris B.