Used MR-1 Help

[mrmr1]

First of all I am new to paintball and the equipment, so any help or direction on where to go next would be great. I bought a used Spyder MR1 from someone for $60 and I cannot get it to function correctly. I know it did work at one time, because I borrowed it for a day from the seller and it worked great.

It will shoot 1 to three balls, sounds like it goes ‘full auto’ - then chop one right where the ball get fed in. I took it apart, clean it, replaced all o-rings, lubed, and re-assembled according to the manual. I even replaced the little rubber ball detent thingy. I filled the tank to 3K psi and tested again thinking the 1K reading was lower than indicated; same issue.

Anyone have any ideas? Thoughts? These mech markers seem sooooo simple…. I must be missing something?

I looked at what documentation I could find, but I can't tell if the pressure regulator is adjustable or not...

[ferret15]

no regulator, if you made sure your striker o-ring "red" is oiled up and you've put a dab of oil in the ASA then air up and shoot it a bunch. then idk? you must be overlooking something.

[oldironmudder]

Is the tank a low or high output?

[mrmr1]

I am not sure what pressure is what, but my tank is a 48cu 3,000 psi compressed air tank.

[slim and shady]

Sounds to me like you ahve a burr on the sear. It is not alowing the striker to catch on it when blew back. take the trigger frame off and file the sear slightly.

[mrmr1]

Slim, thanks. I'll check that out tonight or tomorrow pm and report back.

I also bought a new bolt spring. i have had others tell me it is a common issue with well used guns. That is about the only doo-dad I have not replaced or inpsected yet.

[slim and shady]

it could be your spring too but I still would think the sear is more likley. you could even contac kingman for a replacment.

[eletrokey]

Could it be the value body or the striker bolt?

[mrmr1]

K. Update. New correct spring in place, no el worko. Same problem.

Now I am thinking paint?!? could it be that simple. I am using the same stuff my son's Alpha Black feeds NP. The other kids rental guns also fed it no problem. Could this MR1 just be particular?

I have to make a decision. Either take this thing some where and pay some $ in labor and potentially $ in few parts - or - avoid the hassle and just get a new something and just go play....

I paid just $60 for the kit and I want to avoid putting that much more into it. At that point I could have had a new <insert name of any decent 120-140 mech marker>.

Any more ideas? or should I punt?

eletrokey - The valve body does not leak, and when the 1-3 balls go out the barel correctly, they go with authority. If the striker bold was 'bad' I would not know what to look for other than replace it ($).

[slim and shady]

did you file the sear?