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KM4A1 trouble


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#1 Evilcheshire2000

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Posted 14 August 2008 - 08:17 PM

Ok, here is the deal. I have the KM4A1.  I took it to an event around near me and it was shooting too fast for me to play with. It was averaging 411fps.  For me to play the rifle has to be shooting under 400 using .20 gram bb's.  So I bought another spring for the M4 to try and down grade the fps so i can use in a game.  Well, I managed to change the spring, but here is the other issue... The weapon is not shooting correctly.  It is firing but the bb's are traveling very slow or they are falling out of the barrel.  Also with this, I see little puff of smoke and the trigger seems to be stuck in full auto as well... Any suggestions on what I can do?

#2 Guest_allizard_*

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Posted 14 August 2008 - 08:36 PM

View PostEvilcheshire2000, on Aug 14 2008, 09:17 PM, said:

Ok, here is the deal. I have the KM4A1.  I took it to an event around near me and it was shooting too fast for me to play with. It was averaging 411fps.  For me to play the rifle has to be shooting under 400 using .20 gram bb's.  So I bought another spring for the M4 to try and down grade the fps so i can use in a game.  Well, I managed to change the spring, but here is the other issue... The weapon is not shooting correctly.  It is firing but the bb's are traveling very slow or they are falling out of the barrel.  Also with this, I see little puff of smoke and the trigger seems to be stuck in full auto as well... Any suggestions on what I can do?

Take a apart and put it back it correctly.  If you don't know how then you should find an airsoft tech that can do it.  BTW, if you brought it new. you have just void the warranty.

#3 karMeister

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Posted 15 August 2008 - 01:10 AM

You could have just waited for your spring to settle.  Geez 400fps? Whats the US thinking? This isnt paintball. A paintball will hurt alot more at 350 than a 6mm .20g at 400.

#4 vic_man4

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Posted 15 August 2008 - 06:28 AM

View PostkarMeister, on Aug 15 2008, 01:10 AM, said:

You could have just waited for your spring to settle.  Geez 400fps? Whats the US thinking? This isnt paintball. A paintball will hurt alot more at 350 than a 6mm .20g at 400.

Don't compair paintball to airsoft in anyway :lol: but he shoulda waited the 45 days to do his own upgrades or for the spring to settle.

#5 DaTigah

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Posted 15 August 2008 - 06:33 AM

Hmmm, if the gearbox was opened during the warranty period, and KWA is not gonna fix it...spent $400 dollars...hmmm...somebody is really gonna get UPSET for sure :lol:

Hope you can fix it but if not, might as well go to a professional airsoft technician for help if opening the gearbox during warranty period is the case.

#6 vic_man4

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Posted 15 August 2008 - 06:47 AM

View PostDaTigah, on Aug 15 2008, 06:33 AM, said:

Hmmm, if the gearbox was opened during the warranty period, and KWA is not gonna fix it...spent $400 dollars...hmmm...somebody is really gonna get UPSET for sure :lol:

Hope you can fix it but if not, might as well go to a professional airsoft technician for help if opening the gearbox during warranty period is the case.

Or go to the pro shop if worst comes to worst!

#7 karMeister

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Posted 15 August 2008 - 08:52 AM

Quote

Don't compair paintball to airsoft in anyway


You remember the saying "Listen to understand, not to respond". I think it also applies to reading to understand what people are writing about, not to read just to reply.

#8 DaTigah

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Posted 15 August 2008 - 10:22 AM

View Postvic_man4, on Aug 15 2008, 10:47 AM, said:

Or go to the pro shop if worst comes to worst!

O yea that too. Lot of work (and more money) for a gun. You can buy the complete gearbox for $175 at
http://store.kwausa....4a1gearbox.aspx

Edited by DaTigah, 15 August 2008 - 10:23 AM.


#9 hammer

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Posted 16 August 2008 - 05:56 AM

View PostkarMeister, on Aug 15 2008, 08:52 AM, said:

You remember the saying "Listen to understand, not to respond". I think it also applies to reading to understand what people are writing about, not to read just to reply.


:P

#10 brooklyn468

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Posted 16 August 2008 - 03:37 PM

I didn't want to make another thread so I decided to add my problem to this one -

I have a KWA KM4a1 in case you didn't know already :lol:

I recently rewired my m4 to the back for crane stock. Don't worry, the warrenty was over :lol:.  Everything was shooting fine before I rewired it.

So then I rewired it. I tested a few shots before I put the extension on the wire. Everything was fine. But after I modified the wire to be long enough to fit in the stock tube, weird things started to happen.

I put the gun on semi, and when when I put it back to safety it shoots 2 shots on auto when my finger is clearly off the trigger (every so often, not every time). I tried it a few times times and it happened about 2 / 15 times.

I also want to add that I changed the connectors on the end of my battery to be a small - type tamya. Also, some of the wires make some pretty sharp turns. I tried un - doing the turned wires, and still no luck. Should I try harder?

Is this my wiring which is causing this malfunction? Should I send it in to get fixed? What is wrong?!  :wacko:

Thanks for your help  :)

#11 karMeister

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Posted 17 August 2008 - 06:26 AM

View Postbrooklyn468, on Aug 16 2008, 03:37 PM, said:

I didn't want to make another thread so I decided to add my problem to this one -

I have a KWA KM4a1 in case you didn't know already :lol:

I recently rewired my m4 to the back for crane stock. Don't worry, the warrenty was over :lol:.  Everything was shooting fine before I rewired it.

So then I rewired it. I tested a few shots before I put the extension on the wire. Everything was fine. But after I modified the wire to be long enough to fit in the stock tube, weird things started to happen.

I put the gun on semi, and when when I put it back to safety it shoots 2 shots on auto when my finger is clearly off the trigger (every so often, not every time). I tried it a few times times and it happened about 2 / 15 times.

I also want to add that I changed the connectors on the end of my battery to be a small - type tamya. Also, some of the wires make some pretty sharp turns. I tried un - doing the turned wires, and still no luck. Should I try harder?

Is this my wiring which is causing this malfunction? Should I send it in to get fixed? What is wrong?!  :wacko:

Thanks for your help  :)

It doesnt have anything to do with your wiring.  It sounds more like a selector plate problem.  Try cleaning that area.

#12 brooklyn468

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Posted 17 August 2008 - 06:48 AM

View PostkarMeister, on Aug 17 2008, 09:26 AM, said:

It doesnt have anything to do with your wiring.  It sounds more like a selector plate problem.  Try cleaning that area.

Alright, thanks a lot!

I'll do that and get back to you  :lol:

#13 brooklyn468

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Posted 18 August 2008 - 10:45 AM

I got it working after I cleaned it.

Thanks for your help ! :)

#14 Dr Pepper 6pk

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Posted 18 August 2008 - 11:40 AM

OP, the first problem might be compression problem, make sure your air nozzle isnt cracked and your O-ring is fine
no idea about the second one




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