P90 Auto only, won't fire semi only auto

49 minutes ago, Compulsive Reload said:

Heres a video

Without taking the receiver apart I couldn't say for exact. But I am willing to bet its the plastic selector lever itself. All it does is prevent the body length bar from depressing fully to create full auto. 

 
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Without taking the receiver apart I couldn't say for exact. But I am willing to bet its the plastic selector lever itself. All it does is prevent the body length bar from depressing fully to create full auto. 
Right okay, is that easy to take apart or fix. May have some crap in the trigger from hydro dipping if that could be it. 

 
Replaced both parts fires auto fine, semi works, however if you hold down the trigger hard it still fires auto which is weird. I tried pushing the gearbox down further into the casing then semi worked properly for a few seconds then stopped which was odd.

Unsure as what to do now, semi works fine in a sense as you can fire without triggering auto but If I come to selling it, may be an issue, its almost as if its turned into an aug now.


do you mean it'll fire semi but you have to really squeeze the trigger to get full auto?

there should be a second set of contacts behind the semi contact you can bend forward to tune where full auto should go.

 
do you mean it'll fire semi but you have to really squeeze the trigger to get full auto?

there should be a second set of contacts behind the semi contact you can bend forward to tune where full auto should go.
Yeah once I tightened the cutoff lever it fired semi, once I squeeze the trigger to the max it fires auto. 

It seemed to hit auto on the vid when I pushed the gearbox in via the backplate but was fine when loose.

 
Yeah once I tightened the cutoff lever it fired semi, once I squeeze the trigger to the max it fires auto. 

It seemed to hit auto on the vid when I pushed the gearbox in via the backplate but was fine when loose.


well if you're sure the gearbox is aligned properly then the contacts would be the next place i'd look.

they both need to be bent the same amount out- one's positive the other negative and the slider that's being pushed by the trigger bar bridges the 2.

as asmodai said the selector lever in these fn guns all it does is block you from pulling the trigger far enough to activate full auto.

 
well if you're sure the gearbox is aligned properly then the contacts would be the next place i'd look.

they both need to be bent the same amount out- one's positive the other negative and the slider that's being pushed by the trigger bar bridges the 2.

as asmodai said the selector lever in these fn guns all it does is block you from pulling the trigger far enough to activate full auto.
Alright cheers will have a look once home

 
Right okay, is that easy to take apart or fix. May have some crap in the trigger from hydro dipping if that could be it. 


Splitting the body is fairly easy. But you must do it slowly as springs and the trigger bar mechanism will fall out. Dont lose the spring which is placed underneath the Selector plate, its tiny but you do need it. 

Putting it back together is a PITA. Took me half a night to get my F2000 back together and working OK. 

 
Splitting the body is fairly easy. But you must do it slowly as springs and the trigger bar mechanism will fall out. Dont lose the spring which is placed underneath the Selector plate, its tiny but you do need it. 

Putting it back together is a PITA. Took me half a night to get my F2000 back together and working OK. 
Okay mate, may have a look at a yt video before I do it. 

 
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