Hidden Grease Hole on Chainsaws

[Hipastore]

Sometimes, once you pull the starter, you may find the chain would turn out at the same time. And you may think the clutch of the chainsaw has broken. 90% of the time, it is the exact reason. But I think there is another reason--the broken or destroyed needle bearing.

 

[Hipastore]

In some chainsaws, there is a hole going at the end of the crankshaft and coming out to another hole in the side of the crankshaft. So this is a feature to grease the bearing.

 

[Bob Hedgecutter]

But not on reverse engineered copies of MS 170's?

 

[Hipastore]

But not on reverse engineered copies of MS 170's?

I'm not sure.