Author Topic: SamYang909/909S Misfire Demo  (Read 579 times)

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Offline BUTCHER45

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SamYang909/909S Misfire Demo
« on: May 10, 2009, 02:05:56 PM »
This shows just how easy the SamYang 909/909S guns will go off when you don't want them to. ANY 909/909S!

It doesn't matter when a 909/909S was made: it is an inherent design flaw involving the sear.

After watching this video, I managed to get my 2tube to go off when I put rearward pressure on the cocked cocking lever while "strumming" it.

Some online friends of mine are working hard on a fix as we speak, since nobody else is fixing this very dangerous problem. Until the fix is made available, DE-Cock your 909/909s when moving around, and use caution. Walking around with a 909/909S cocked is literally a bad accident waiting to happen.

The safety only blocks the trigger. It does NOT block the sear. The sear itself is the design flaw that is causing the misfire.

The 909S used in this demonstration has the post-recall/replacement sear installed. So much for the replacement sear.

http://s107.photobucket.com/albums/m295/rzrbax/?action=view&current=P1010151_mpeg4_mpeg2video.flv
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Offline Silvertp

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Re: SamYang909/909S Misfire Demo
« Reply #1 on: May 11, 2009, 04:04:06 AM »

Thanks for the heads-up post.  While I don't own one of these its always a good reminder that mechanical "things" don't always function as you would expect them to. 

Hope your buds are able to figure out a fix for this.

Silvertp

Offline securitysix

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Re: SamYang909/909S Misfire Demo
« Reply #2 on: May 11, 2009, 03:51:00 PM »
Out of curiosity, is this problem with all of these 909 guns, or just the ones that have been tuned to have a better trigger pull? 

If the former, then yes, there's a design flaw.  If it's the latter, however, the problem may be with the tuning rather than the design of the gun.

I ask this because I know a lot of guys like to have their airguns tuned.  I never got it, myself, but neither my old Daisy or my RWS 52 have heavy triggers (unless the safety is on, then they're impossibly heavy ;)).

Offline BUTCHER45

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Re: SamYang909/909S Misfire Demo
« Reply #3 on: May 12, 2009, 08:52:32 PM »
Out of curiosity, is this problem with all of these 909 guns, or just the ones that have been tuned to have a better trigger pull? 

Apparently, ALL of them.  It's not a result of being tuned.

Four out of four failed the test.  Two 909 guns, and two 909S guns.  The 909S guns were not tuned, and one of them even had a post-recall sear installed that was supposed to fix the problem.  The other 909 gun hasn't been tuned, and I don't think the owner has done any trigger work to it either but I can't say for sure. 
My 909 has been tuned for power, but nothing was done to the trigger.. Don't know about the sear on mine (mine actually seems a bit harder to get to go off than the others).

I have heard of several other 909S rifles going off from the cocked cocking lever being brushed up against.  Some have a "hair trigger" type reaction that has been described as "scary'.
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Offline securitysix

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Re: SamYang909/909S Misfire Demo
« Reply #4 on: May 13, 2009, 01:53:30 PM »
OK.  It seemed a reasonable question to ask.  I've seen firearms that became dangerous in the way you describe after a trigger/action job, and I figured airguns could be similar.  Since it is a problem with all of them, including ones that have never been tuned or worked on, I'd say it's a factory defect.  I had considered the SamYang an interesting piece worth considering, but if they're unsafe, I guess I'll take them off my "worth considering" list unless and until they are fixed.