Have you tried a brand new needle and checked to make sure it is the correct needle and installed facing the proper direction? If you've done all that, then it is most likely a needle/hook timing issue. Probably need to take it for service. ...
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Have you tried a brand new needle and checked to make sure it is the correct needle and installed facing the proper direction? If you've done all that, then it is most likely a needle/hook timing issue. Probably need to take it for service.
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