How to remove Arctic Power Valve (APV) - HCS Snowmobile Forums

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Old 10-10-2007, 06:45 PM   #1 (permalink)
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I am pulling the motor from my 01' zr 600 and can't figure out how to disconnect the cables from the APV valves located on the cylinder heads. Does anyone have any tips?
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Old 10-10-2007, 06:58 PM   #2 (permalink)
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Iono about Zr's but on the firecat they just have a hex that hold em on...
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Old 10-10-2007, 07:04 PM   #3 (permalink)
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Remove the 4 cap screws on the covers, then the torx screws (2 ea) underneath.
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Old 10-10-2007, 09:34 PM   #4 (permalink)
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to get the cable seperated form the valve itself, once you get the assembly off the jugs there should be a little cap screw between the spring and the valve, take that out and then it will basically just fall apart for you
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Old 10-10-2007, 11:41 PM   #5 (permalink)
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on a 600 zr: per cylinder there are the obvious Four cover bolts. Then Three inner "retainer plate" allen or torx head bolts. Then the valves slide out, getting to your question , at this point -valves out of cylinder with cables still hooked- the retainer pin slides left to remove the right half of the valve and then slide it left to remove the other half. the pin on a 600 is just a pin. not a bolt like on a zr 8-9 or fcat.
the valves come apart and you have 5 loose pieces per cylinder to clean.
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Old 10-11-2007, 08:17 PM   #6 (permalink)
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First attempt ,Service one side at a time.

Make sur u have the EXACT torx head size. They strip ezzee.

Notice that the dimpled side of the gullotine is installed facing down!

Cover the ex, valve port w/ a rag.

Take a white shop rag or whatever and place under the cases over the pipe..lot easier to retrieve a dropped capscrew.

Dont over tighten any bolt here.
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Old 10-11-2007, 09:12 PM   #7 (permalink)
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Quote:
First attempt ,Service one side at a time.

Make sur u have the EXACT torx head size. They strip ezzee.

Notice that the dimpled side of the gullotine is installed facing down!

Cover the ex, valve port w/ a rag.

Take a white shop rag or whatever and place under the cases over the pipe..lot easier to retrieve a dropped capscrew.

Dont over tighten any bolt here.[/b]
Good advice. However, he has a 600 with the muli-piece pain-in-the-a$$ valves.
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Old 10-11-2007, 10:46 PM   #8 (permalink)
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Thanks, I will give the valves a shot this wkend.
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Old 10-12-2007, 08:30 AM   #9 (permalink)
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Thanks, I will give the valves a shot this wkend.[/b]
Once you get started I think you'll find that it's pretty obvious. The year before last I opened mine up for the first time to clean them and replace one cable that had frayed and broken. There are 2 bolts holding the cable to the assembly, but remove the whole assembly out of the cylinder. Once you take those 4 bolts off and pull the assembly out of the cylinder, you can remove the 2 bolts holding the cable in, then unhook the cable end from the valve stopper.
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Old 10-12-2007, 08:46 AM   #10 (permalink)
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Here is a picture of your cylinders.
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