chain-jam Troubleshooting

Chain jam / won't cut on the Stihl MS 261 C-M

Source: ProductDB new-categories research catalog Confidence: 90% Verified Aug 8, 2026

The chain is not cutting or jams, often from a dull chain, wrong tension or a blocked bar groove.

How to fix Chain jam / won't cut

Sharpen or replace the chain

A dull chain strains the motor. Sharpen it with a file or fit a replacement chain.

Source: ProductDB new-categories research catalog Confidence: 80% Verified Aug 8, 2026

Difficulty: ★★ Est. 20 min

Adjust chain tension

Loosen the bar nuts, adjust the tensioner until the chain is snug, then retighten.

Source: ProductDB new-categories research catalog Confidence: 80% Verified Aug 8, 2026

Difficulty: ★ Est. 5 min

Replacement parts for the Stihl MS 261 C-M

Stihl MS 261 C-M Replacement Chain Stihl MS 261 C-M Guide Bar Stihl MS 261 C-M Air Filter Stihl MS 261 C-M Spark Plug Stihl MS 261 C-M Replacement Battery Stihl MS 261 C-M Chain Oil

← All Stihl MS 261 C-M error codes

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