Thread: NPAS adjustment
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Old September 21st, 2010, 09:08   #6
m102404
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Join Date: Apr 2006
Location: Toronto
The adjustable float valve assembly is made up of 2 main parts:
- the "cage"....which is the unit that moves back and forth and actually plugs the nozzle when the action starts the recoil cycle
- the adjustment part...which is a stem with a plate on one end and a male hex head on the other. The adjustment part screws in through the bottom of the cage and the tip of it is sitting in the nose of the nozzle

(simplified...the only difference between the stock float valve and the adjustable one is that there's the adjustment stem threaded through the cage)

To adjust, you turn the stem clockwise or counter clockwise.

To reduce the FPS you need to end up with the cage more forward towards the nozzle tip. To increase the FPS you need to end up with the cage positioned further back away from the nozzle tip. Basically as you screw the adjustment part in or out of the cage...it forces the cage to sit further forward or backwards.

To adjust the setting, use your fingernail and "pinch" the cage through the nozzle body to hold it in position. Then insert the adjustment key down the tip of the nozzle until it engages the tip of the adjustment stem. Turn in the appropriate direction. It may be stiff to adjust...that's a good thing.

You can also use a small/thin allen key and position it through the nozzle body and cage so that it jams things up and stops the cage from rotating as you turn the adjustment stem.

That should be clear enough. If it isn't...get someone to show you in person.
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