379 pete
ArboristSite Lurker
Hi, I recently tore down an 090 Stihl for a rebuild, The crankshaft has 2 weights added to the crankshaft counterweights, look like they were TIG welded on, and are Not factory. Is there anybody out there that can explain how balancing works, Was this done to compensate for a heavier piston or higher RPM's???? I didn't get the piston or jug with the saw, so I don't know what they had for a top end on this case. I would like to reuse the crankshaft, but don't know how it will act with a stock piston. I am thinking that this was an attempt to build a Hot Saw at one time. Any help would be great. Thanks/379 Pete