Mac 250 saw

[Tim Exley]

Just picked up a Mac 250 saw in great condition and doesn't seem to have been used much. 
All three exhaust ports are drilled. What are the chances all the intakes are drilled? Thanks.

[Terry Sullivan]

Tim,
Those are great chainsaws.  I pull mine out when I have a big tree to work on.
You should be able to see the ports on the opposite side of the exhaust ports.
Can you see the 'plugs' for the ports opposite the intake side?
If they are all plugged, then all of the intake ports should be open.
Sometimes you will see one that was never drilled and therefor, never plugged.
Saying this from memory.  I'll look at my Super 250 today.

t

[Tim Exley]

Tim,
Those are great chainsaws.  I pull mine out when I have a big tree to work on.
You should be able to see the ports on the opposite side of the exhaust ports.
Can you see the 'plugs' for the ports opposite the intake side?
If they are all plugged, then all of the intake ports should be open.
Sometimes you will see one that was never drilled and therefor, never plugged.
Saying this from memory.  I'll look at my Super 250 today.

t

Thx, Terry. I'll try to take a look. Was thinking I'd make it a working saw before I did anything else. Should be a bear compared to the little Homelite saw I have.