saws

[Mark B]

Hi I have a question about my Chainsaws. When they are running at max RPM's they seem to change the tone sometimes, almost as if the timing changed or something. I am wondering what causes this ? and is it supposed to do this? is it running to lean?. I heard someone refer to it as a 2-4.
Thanks

 

[rarefish383]

Mark, welcome to the site. Drop down in the menu a little farther and repost your question in the "chainsaw" forum and you'll get a quick reply, sorry I don't know, Joe.