After a lot of thinking, googeling and trying to identify where the skipping sound came from, I settled on the NP231J. I reasoned that running that thing with little or no oil in it would stretch the chain. I decided to do a full rebuild of the case.

I removed the case and took it apart. All the gears and sprockets looked OK. The chain did not. Hopefully this is where the problem lies.




The case has now been properly cleaned. The parts with bearings, seals and chain will arrive on Tuesday


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