I assume you are using two needles and have threaded it correctly... check and recheck and make sure all four disk tensions are engaged.

I'm not sure I know what that means. It took me forever to figure out the overlock stich. I tried to get the reinforcing stich to work but no luck. I have tried adjusting the tension but not sure if I am doing i right.

Pooh, I was having that problem with my old New Home serger and it turned out the left needle wasn't inserted all the way up in the needle holder. Do you have the manual to check the threading paths?

Donna

I do have the manual and will try that to see what happens. Thanks for the input.

I just got a Juki with this model number. I was wondering if you still had the manual, and if so, if you could email me a copy of it, or send a copy to me. I'd be happy to pay for the cost of shipping. Thanks!

The correct term for what you're calling the "reinforcing stitch" is SAFETY STITCH.

You have a manual, Pooh? Unless you are talking about the Parts Manual, I'd bet there is a comprehensive threading diagram in it.

I agree... 7 times out of 10 the operator has put the needle in improperly.

I just bought a used Juki Serger, Pearl M655. Do you know where I can get a manual?
Thanks,
Ann