Invert Mini Info

How to properly assemble your mini
http://www.zdspb.com/tech/invert/disassembly1.html


My Mini Will Not Shoot / Solenoid Will Not Click

Make sure your mini is turned on and has a fresh battery

Make sure you have properly assembled your mini

Ensure that the pins on the fore grip are properly aligned to the sensor board. Also double check that the solenoid is plugged in to the sensor board.

Make sure that the circuit board is registering the trigger pull

If your circuit board is not registering a trigger pull then you are most likely encountering this issue after you have adjusted the set screws on the trigger. Try to return the screws to their original position.

If you have not recently adjusted the set screws on the trigger then it is possible that they have moved over time. Add some loctite to the threads to prevent this from happening again in the future.

The solenoid does not click even though the circuit board is registering a trigger pull

This is an issue with your solenoid. Ways to fix your solenoid can be found bellow.

Take the top three phillips head screws out off Solenoid Cap. (Make sure to press down hard to avoid stripping screws. If the screw get stripped you will have to buy a new Solenoid.) Next pull the piston out which is held in by a magnetic force and check the seals on both the bottom and top of the piston. They should be flush with the rest of the piston if not grab a small allen key and push the seal in and pull the allen key out until it goes back to flush position. – (originally posted by cjs9485)

While you have your solenoid apart you might want to clean it and re lube it before putting it back together. (how to properly service your solenoid).

The bottom has broken free of the solenoid

On the rare occasion the black plastic that holds the solenoid together has been known to break and can be found rattling around inside of the grip. If this happens to your solenoid you will need to contact kee and get a replacement. Kee’s phone number is 1-800-220-3222.

My mini doesn't shoot very far

If your mini fires, but the balls only go a few feet make sure that you have properly adjusted the back cap. Unscrew the back cap to increase your velocity.

If your back cap is already unscrewed you should check the pressure on your regulator and the amount of air that is left in your tank. If your operating pressure is not between 100-200 psi then you should raise your pressure until you are in the desired range. And obviously if your tank is low on air you will experience issues. Also be sure to double check that your tank is screwed in all the way. Dry fire while screwing in the tank to ensure that it goes in all the way.

If your back cap is unscrewed and you have plenty of air, check your dwell settings. If your dwell is ridiculously low your fps could suffer. Try raising it a bit.


My Mini Leaks
If your mini is leaking out of the back of the asa or the small hole at the rear of the regulator

Make sure that your tank is screwed in all the way. Also, check to make sure that your oring on your tank is not damaged.

If your mini is leaking out of the large silver screw on the bottom of the regulator

This is a where your regulator will release pressure in case something should happen and the pressure inside of the regulator gets too high. This will prevent you from damaging your mini if you accidentally turn the pressure up too high. Check the gauge to make sure that the pressure is under 200 psi. If the pressure is fine, then you will need to tighten the screw a little bit at a time until the leaking stops.

If your mini is leaking out from around the gauge

Again this is most likely due to user error. You most likely just installed a new gauge, or have messed with the old one. Tighten the gauge with a strap wrench and add some Teflon tape if necessary.

If your mini is leaking out from between the top of the regulator and the bottom of the grip frame

Make sure your regulator is tight to the frame by tightening the set screws inside of the grip frame. Check the oring on the bottom of the lower transfer tube. Check to make sure the transfer tube is tight.

If your mini is leaking from in between the two air transfer tubes

Make sure that you have properly assembled your mini. (how to properly assemble your mini) Next check the oring on male transfer tube and apply a little bit of lube if necessary.

If your mini is leaking from between the top of the trigger frame and the air transfer plate

Check the oring on top of the upper transfer tube and apply a little bit of lube if necessary. Make sure the upper transfer tube is screwed in tightly.

If your mini is leaking from behind the trigger each time you shoot

If it is only a small amount of air each time you fire then there is nothing to worry about. This is normal and is just the solenoid venting.

If your mini is leaking from between the air transfer plate and the body

Make sure that you have assembled your mini correctly. (how to properly assemble your mini) Make sure that the screws that hold the air transfer plate to the body have all been tightened. Next, check the air transfer gasket for any damages and replace it if it is damaged.

If your mini is leaking from the back cap

Make sure you assembled the marker correctly and have properly aligned the bolt guide with the silver pin in the back of the body. (how to properly assemble your mini) Ensure that the rear trigger frame screw is tight. Inspect the oring on the back cap for any visible damages and apply a little bit of lube if necessary.

If your mini is leaking down the barrel

First off, you should make sure that you have the most up to date poppit.
(What is my Mini, V1 or V2 thread) or (How To: Identify Invert Mini 1st/2nd Generation Parts) (If you have a poppit that is out of date, contact kee for a replacement. Kee’s phone number is 1-800-220-3222.

If you have the latest poppit, step one should be to reset your poppit. You can do this by screwing the back cap all the way in tightly to make sure that the poppit face is properly sealing. If this stops the leak, but the leak returns once you unscrew the back cap to your proper velocity you should check your poppit face for damage. There should be no lube on the poppit face, or in the hole in the side of the poppit. Only a slight amount of lube should be on the oring. If you have a replacement poppit face, try replacing it. If not contact kee for a new poppit. Kee’s phone number is 1-800-220-3222.

If your poppit is not the issue, check all of the orings on the bolt guide, poppit, and bolt for visual damage. Replace any damaged orings. Lightly lube all of the orings and reassemble your mini.

If the problem persists, reset your solenoid by following the steps bellow.

Take the top three phillips head screws out off Solenoid Cap. (Make sure to press down hard to avoid stripping screws. If the screw get stripped you will have to buy a new Solenoid.) Next pull the piston out which is held in by a magnetic force and check the seals on both the bottom and top of the piston. They should be flush with the rest of the piston if not grab a small allen key and push the seal in and pull the allen key out until it goes back to flush position.

While you have your solenoid apart you might want to clean it and re lube it before putting it back together.

My Mini Chops
Check for blowback

Your first step if your mini is chopping should be to check for blowback. Here’s how. Remove your hopper, then place two balls in the feedneck, and fire one shot. If the second ball flies up into the air you have blowback. Proceed to the My Mini Has Blowback section.

Check your paint to barrel bore match

If the paint is too large for the barrel you are using, paint may break inside of the barrel. The only fix for this is to use a larger barrel bore or to use smaller paint.

Check the quality of your paint

If you are using old paint that is not round, is dimpled, is soft, or is not made for the weather you are playing in(too cold / too hot) you may experience chopping / ball breaks. The only fix for this is to try using better paint.

Check to your eyes

Make sure your eyes are on and are clean. If your eyes are off, or are dirty, your mini will be more prone to chopping balls.

If your mini only chops while shooting fast

Make sure your eyes are on and are clean. If your eyes are off, or are dirty, your mini will be more prone to chopping balls. Also make sure your hopper can feed fast enough and has fresh batteries. If you have a slower hopper, you might want to raise the BIP setting on your gun.

Check your detents

Your detents should move easily, and be relatively clean. Also, make sure you have V2 detents. If not, call kee for replacements. Kee’s phone number is 1-800-220-3222.

My Mini Has Blowback

f you have the old style poppit call kee for a replacement. Kee’s phone number is 1-800-220-3222.

If you have the newest style poppit check to make sure there is no lube on the face, and that the oring is properly lubed. (how to properly lube your mini)

If you have the latest poppit step one should be to reset your poppit. You can do this by screwing the back cap all the way in tightly to make sure that the poppit face is properly sealing. If this stops the leak, but the leak returns once you unscrew the back cap to your proper velocity you should check your poppit face for damage. There should be no lube on the poppit face, or in the hole in the side of the poppit. Only a slight amount of lube should be on the oring. If you have a replacement poppit face, try replacing it. If not contact kee for a new poppit. Kee’s phone number is 1-800-220-3222.

Check your orings

If your poppit is not the issue, check all of the orings on the bolt guide, poppit, and bolt for visual damage. Replace any damaged orings. Lightly lube all of the orings and reassemble your mini. (how to properly lube your mini) (how to properly assemble your mini)

Clean your solenoid

If the problem persists, reset your solenoid by following the steps bellow.

Take the top three phillips head screws out off Solenoid Cap. (Make sure to press down hard to avoid stripping screws. If the screw get stripped you will have to buy a new Solenoid.) Next pull the piston out which is held in by a magnetic force and check the seals on both the bottom and top of the piston. They should be flush with the rest of the piston if not grab a small allen key and push the seal in and pull the allen key out until it goes back to flush position. – (originally posted by cjs9485)

While you have your solenoid apart you might want to clean it and re lube it before putting it back together. (how to properly service your solenoid)

Coolicarboy's guide to fix blowback

If you have blowback, do and check the following.
- Make sure no lube or debris is covering your poppet hole.
- Make sure your poppet O-ring is lubed.
- Make sure your check valve isnt broken in half or missing.
- Make sure your spring is broken in.
- Do a factory board reset or lower your dwell.
- Replace your bolt guide O-rings.
- Make sure the big front bolt O-ring isnt missing.

If you have blowback, and none of this worked, you either have a defective poppet, or a defective aftermarket bolt. (If you have one) For the bolt, call the company and tell them. For the poppet, call KEE at 1800-220-3222. You will have to buy a new poppet from them for 7$.

My Mini Is Inconsistent

Check all of the orings on the bolt guide, poppit, and bolt for visual damage. Replace any damaged orings. Lightly lube all of the orings and reassemble your mini.

Check your paint to barrel bore match

If the paint is too large for the barrel you are using, paint may break inside of the barrel. If the paint is too small for the barrel you are using you can experience poor consistency and your accuracy will suffer. The only fix for this is to use a better paint to bore size match.

My Mini Has Poor Efficiency

Make sure your mini is properly broken in

You can break in your mini by dry firing a tank or two to properly break in the spring.

Check for leaks

Air up your mini and remember how much air you have in the tank. Now let it sit for a few hours. If you have any less air in the tank, then you have a leak. Figure out where the leak is coming from and then refer to the My Mini Leaks section.

Check your orings

Check all of the orings on the bolt guide, poppit, and bolt for visual damage. Replace any damaged orings. Lightly lube all of the orings and reassemble your mini.

MaxOC’s tuning guide

NOTE, I HAVE ADAPTED AND MODIFIED THE GUIDE TO BE BOARD SPECIFIC. MOST PARTS WILL WORK WITH ANY BOARD, PARTS THAT ARE BOARD SPECIFIC WILL BE COLOR CODED.

7th element
tadao
virtue
ape

for efficency
1 turn psi to 190
2 turn backcap out(stock dwell) until you chrono at your field limit
3 drop dwell a ms at a time or so till you see a drop in fps
a. Drop open dwell 2 blinks at a time until you see a significant drop in fps or inconsistancies/other problems. Then lower your closing dwell one blink at a time until your noid doesnt close upon firing. you'll know this has happened because the bolt will stay forward and the poppet will stay open. Dryfire/fire with paint a few times every time you do this to be sure that your noid will close in all situations.
b. Lower your bolt forward dwell until you see a significant drop in fps/have consistancy or bolt and/or poppet issues. then lower your bolt return firing with and without paint every increment to be sure your gun is still operating correctly.continue to lower until it doesnt operate correctly, then bump it back up to the setting that it did work at.
c. Lower your dwell until you see a significant drop in fps/have consistancy or bolt and/or poppet issues. then lower your closing dwell, firing with and without paint every few increments to be sure your gun is still closing the solenoid all the way.continue to lower until it doesnt operate correctly, then bump it back up to the setting that it did work at. youll know that you went too low when your bolt sticks forward and your poppet stays open until you detach the air source
d. lower your open dwell one increment at a time, with air, until your noid malunctions and doesnt send air to the bolt, meaning your bolt wont cycle. then bump it back up an increment or 2 until the noid will consistantly open at your psi with and without paint at low and high rof. then lower your dwell an increment at a time till you see a significant drop in fps. then bump it back up one setting. then start to lower your closing dwell till you go to low. youll know you went too low because your bolt will stay forward, and your poppet will stay open.
4 if you see no drop in fps by the time youre at 1 blink, lower your psi till you see a dropoff in fps.
5 once you see a drop due to either dwell or psi, turn whichever one dropped it back up .5 ms or 10 psi to be safe.
6 make sure youre at your field limit with decent consistency. if you see consistency issues or blowback issues, try upping your dwell and lowering your psi a little.

to be gentle on paint.
1 turn your dwell as high as it goes on your board.
2 turn your backcap 3 turns out
4 lower psi until you either
A stop cycling fully(feed 2 at a time to tell)
B get blowback (feed 2 at a time to tell)
C drop your fps below your field limit
5 if A happens, up your psi until you do cycle fully. if B happens up your psi until you stop the blowback. if C happens turn your psi back up until you are at your field limit
6 after all that, you should have a gun on very low pressure, but still has kick??? thats because it has about 4x the dwell it needs. lower your dwell one ms at a time till you see a drop in fps.
a. Drop open dwell 2 blinks at a time until you see a significant drop in fps or inconsistancies/other problems. Then lower your closing dwell one blink at a time until your noid doesnt close upon firing. you'll know this has happened because the bolt will stay forward and the poppet will stay open. Dryfire/fire with paint a few times every time you do this to be sure that your noid will close in all situations.
b. Lower your bolt forward dwell until you see a significant drop in fps/have consistancy or bolt and/or poppet issues. then lower your bolt return firing with and without paint every increment to be sure your gun is still operating correctly.continue to lower until it doesnt operate correctly, then bump it back up to the setting that it did work at.
c. Lower your dwell until you see a significant drop in fps/have consistancy or bolt and/or poppet issues. then lower your closing dwell, firing with and without paint every few increments to be sure your gun is still closing the solenoid all the way.continue to lower until it doesnt operate correctly, then bump it back up to the setting that it did work at. youll know that you went too low when your bolt sticks forward and your poppet stays open until you detach the air source
d. lower your open dwell one increment at a time, with air, until your noid malunctions and doesnt send air to the bolt, meaning your bolt wont cycle. then bump it back up an increment or 2 until the noid will consistantly open at your psi with and without paint at low and high rof. then lower your dwell an increment at a time till you see a significant drop in fps. then bump it back up one setting. then start to lower your closing dwell till you go to low. youll know you went too low because your bolt will stay forward, and your poppet will stay open.
7 once that drop happens bump it back up 1 ms. check for consistancy, half cycling, or blowback.
8 if you see consistency issues or blowback issues, try upping your dwell a little.
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thisll work for both stock bolt and v2. although with stock bolt youll see some half cycles before you go below 300 fps when going for lowest pressure.