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Old 04-21-2013, 09:44 PM   #1 (permalink)
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Join Date: Feb 2011
Location: Hanover, Ontario

Help with a zenith from hell!

I picked up a used 2011 zenith for my daughter, LEMON, so I sent it to be fixed, the tech could not figure it out so they sent it to the distributer (?). I tried it out at a field and it would not shoot past 175 fps, tried adjusting it ....... no change. Thinking it was the regulator, I changed regulators.....No change < 175 fps. No matter the adjustments it would not shoot above 175! Any ideas on how I might be able to remedy this?
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Old 04-21-2013, 11:02 PM   #2 (permalink)
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Spring kit.

Possibly has export springs (Germany, Japan).
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Old 04-24-2013, 08:32 PM   #3 (permalink)
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Using co2 or air? If you're using air, make sure the tank has a high output. Consult the manual regarding the ZeRO system, which is the adjustable valve (more specifically, adjusts the spring tension on the valve's cup seal, controlling valve timing). Page 12. It needs to be adjusted accordingly, depending on what you use.

Stock main spring should be good enough for velocity adjustments, although spyder springs may fit.
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Old 04-29-2013, 12:14 AM   #4 (permalink)
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Quote:
Originally Posted by nerdcore View Post
Using co2 or air? If you're using air, make sure the tank has a high output. Consult the manual regarding the ZeRO system, which is the adjustable valve (more specifically, adjusts the spring tension on the valve's cup seal, controlling valve timing). Page 12. It needs to be adjusted accordingly, depending on what you use.

Stock main spring should be good enough for velocity adjustments, although spyder springs may fit.
I am using hpa with an output of 800psi. I have tried adjusting according to the manual and tech videos........< 175fps. I will have to try a spring kit in it.
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Old 07-21-2013, 08:57 PM   #5 (permalink)
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Sell it! Lol a spring kit and some tinkering should get you where you need to be, also drilling out the vertical ASA does wonders too.
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