Nose sprocket jamming

[MattyF]

It's just one of those things I've had new bars on ms200's go in a few weeks but by far the best was an old 335 husky that lasted hours! For Some reason my 372 is eating bars I'm lucky to get 6 months before the nose sprocket shatters?

[gensetsteve]

If I cross cut alot of dry beech it can clog the nose sprocket. I leave the chain just a little on the slack side this helps the problem. I never grease if you do I think you get a ring of grease that stops the bar oil getting to the bearing. Clean in a solvent bath then lube with bar oil and should be fine