Jan 12, 2016 · A flywheel serves four main purposes (in most vehicles): It provides mass for rotational inertia to keep the engine in motion It is specifically weighted to provide balance for …

Nov 3, 2014 · The darn thing has no spark. I figured a bad coil, but much to my surprise, if I swapped a different flywheel in, the saw had spark. The flywheel has a broken fin that did …

May 30, 2017 · The solenoid pushes a little gadget that engages with the flywheel / flex plate, so that when the starter spins, it turns the motor. If you just hear a whirring sound like the starter …

Apr 20, 2016 · This previous question explains what a flywheel does and why it is needed. That explanation means that the flywheel needs a certain amount of mass to do its job. However, …

Sep 25, 2009 · I sheared the key to the flywheel key on my Stihl MS290. Yes, I did what I shouldn't have done - was using it to hold the crank while removing the clutch. Nonetheless, …

Apr 15, 2025 · 066 after # X 33 917 066 all of the following - larger big end bearing, longer crankshaft with different ignition taper and larger threads, new crankcase, lightweight poly …

Jun 7, 2007 · Anybody know the correct gap between flywheel and coil for the Stihl 028? Still working on converting this ignition. Where are all the guru's at tonight?:chainsawguy:

How do I stop the flywheel from spinning while torquing the bolts? My repair manual says I should buy a special tool to do it, but I don't want to buy an expensive tool that I'll rarely use. Is th...

Aug 5, 2001 · All right, is there a standard accepted way to repair these kind of flywheels if a key gets sheared, or are you supposed to simply replace the entire...

Jun 12, 2005 · Here's the problem, the stihl setting gage seems to set the air gap too tight, like 0.004" measured between the ignition module arms and the flywheel magnets using a feeler …