Author Topic: Yugo M59 SKS fires once, does not eject, bolt sticks  (Read 9454 times)

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Dannyboy53

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Re: Yugo M59 SKS fires once, does not eject, bolt sticks
« Reply #15 on: October 22, 2019, 10:23:46 PM »
What position is the gas valve in?  The one that regulates single shot vs. semi-auto?

I thought about that also, he did say it is an M59 but IF it is an M59/66 the gas valve may be shut-off!
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Filroy77

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Re: Yugo M59 SKS fires once, does not eject, bolt sticks
« Reply #16 on: October 22, 2019, 11:16:39 PM »
Hey all, looking for some help with my virgin SKS I purchased a few years back.  Its a yugo M59 SKS.  When I load it with 1 round or more and fire it, it shoots great, but bolt sticks (only when I fire, when I just pull the bolt back and forth it moves fine), fails to eject, and to get it to eject the spent round I have to wait a while and it moves normal or bang the bolt hard to open the bolt.  What have I done to troubleshoot?  When I first got it I cleaned it to a stupid level of detail taking it down all the way to individual components in the trigger group. I also worked on the pin and firing pin so they moved in the bolt much better (it was getting stuck which I had read leads to slam firing).

What do I think?  Has to be one of the two pieces of the bolt or the chamber.  I really don't see how the gas system could cause the bolt to get temporarily stuck (And yes the knob on the gas block is down and to the right, not at the top). I lean towards chamber but it looks alright to me. 

Anyone ever seen/dealt with this?  Any thoughts?

So it looks to be a 59/66.
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Dannyboy53

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Re: Yugo M59 SKS fires once, does not eject, bolt sticks
« Reply #17 on: December 05, 2019, 07:29:37 AM »
Hey all, looking for some help with my virgin SKS I purchased a few years back.  Its a yugo M59 SKS.  When I load it with 1 round or more and fire it, it shoots great, but bolt sticks (only when I fire, when I just pull the bolt back and forth it moves fine), fails to eject, and to get it to eject the spent round I have to wait a while and it moves normal or bang the bolt hard to open the bolt.  What have I done to troubleshoot?  When I first got it I cleaned it to a stupid level of detail taking it down all the way to individual components in the trigger group. I also worked on the pin and firing pin so they moved in the bolt much better (it was getting stuck which I had read leads to slam firing).

What do I think?  Has to be one of the two pieces of the bolt or the chamber.  I really don't see how the gas system could cause the bolt to get temporarily stuck (And yes the knob on the gas block is down and to the right, not at the top).  I lean towards chamber but it looks alright to me. 

Anyone ever seen/dealt with this?  Any thoughts? 


thatmattguy have you resolved this issue?
"I may be drunk, Miss, but in the morning I will be sober and you will still be ugly."     
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1911crazy

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Re: Yugo M59 SKS fires once, does not eject, bolt sticks
« Reply #18 on: October 06, 2020, 03:10:47 PM »
All my Yugo sks’s Needed gas port cleaning. They were plugged up with crud. One m59 one of those aim ufixems had two different size drilled holes in the gas port, the cleaning tool didn’t go all the way through the port but a smaller drill did.

Gator417

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Re: Yugo M59 SKS fires once, does not eject, bolt sticks
« Reply #19 on: December 05, 2021, 05:15:52 AM »
Did you ever get this figured out? Pretty sure it's not the gas system or the chamber. Sorry for posting on such an old thread, but I'd hate to think you haven't gotten to shoot your rifle because of an easy fix.
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