Author Topic: Stihl drive sprockets (Read 1110 times)

uplander · « **on:** February 12, 2015, 02:26:48 PM »

I noticed that the drive sprocket on my MS250 was getting noticeably grooved. When I went to order parts I saw where one can get 6 tooth or 7 tooth sprockets. Mine came with a 7 tooth.

Forgive my ignorance but what are the advantages one over the other?

so il logger · « **Reply #1 on:** February 12, 2015, 02:49:33 PM »

The 6 pin would slow the chain speed a little and give a little more pulling power. But not much. The 660 comes stock with a 7 pin and I put 8 pin on them for a little more chain speed.

SawTroll · « **Reply #2 on:** February 12, 2015, 02:56:06 PM »

Quote from: uplander on February 12, 2015, 02:26:48 PM

I noticed that the drive sprocket on my MS250 was getting noticeably grooved. When I went to order parts I saw where one can get 6 tooth or 7 tooth sprockets. Mine came with a 7 tooth.

Forgive my ignorance but what are the advantages one over the other?

Different chain pitches may also be involved, likely .325 and 3/8" Picco in this case.

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