How to remove Arctic Power Valve (APV)

zrbrian · 10-10-2007, 06:45 PM

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?

fiskars22 · 10-10-2007, 06:58 PM

Iono about Zr's but on the firecat they just have a hex that hold em on...

snochopper · 10-10-2007, 07:04 PM

Remove the 4 cap screws on the covers, then the torx screws (2 ea) underneath.

mezz250x · 10-10-2007, 09:34 PM

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

stronger800 · 10-10-2007, 11:41 PM

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.

NjSnoNut · 10-11-2007, 08:17 PM

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.

stronger800 · 10-11-2007, 09:12 PM

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.

zrbrian · 10-11-2007, 10:46 PM

Thanks, I will give the valves a shot this wkend.

Jim85IROC · 10-12-2007, 08:30 AM

Quote:

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.

5youngs · 10-12-2007, 08:46 AM

Here is a picture of your cylinders.

10-10-2007, 06:58 PM	#2 (permalink)
fiskars22 Super Advanced Member Join Date: Sep 2007 Posts: 577	Iono about Zr's but on the firecat they just have a hex that hold em on... __________________ I have alot of Harley parts, dealer removed, good deals. Send pm if interested.

10-11-2007, 08:17 PM	#6 (permalink)
NjSnoNut Super Advanced Member Join Date: Dec 2005 Posts: 4,821 Current Sled(s): 2011 MXZ800X ETEC Spring. Previous Sled(s): 06 ZR9....MACH1.. Location: NJ Favorite Riding Area: WO @125 across StillwaterResv. 12-13 Mileage: 1250 + 11-12 Mileage: M.I.A. 10-11 Mileage: 98 FU knee Age: 62 Riding Since: 1973	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. __________________ __________________________________________________ __________________________________________________ ___________________________________ "I refuse to capitalize the names of people I have NO respect for." '11 MX Z- 800 - ETEC Spring >http://www.atvpt.com/2011_SKIDOO_MXZ.../Spec_MXZX.pdf If I speak, I am condemned. If I stay silent, I am damned!

10-10-2007, 06:45 PM	#1 (permalink)
zrbrian Super Advanced Member Join Date: Nov 2003 Posts: 109	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?

10-10-2007, 07:04 PM	#3 (permalink)
snochopper Super Advanced Member Join Date: Mar 2004 Posts: 3,796 Current Sled(s): F-1000 Previous Sled(s): 77 ElTigre Location: Rotterdam, NY Favorite Riding Area: Perkin's Clearing 11-12 Mileage: not enough Age: 53 Riding Since: 1972	Remove the 4 cap screws on the covers, then the torx screws (2 ea) underneath.

10-10-2007, 11:41 PM	#5 (permalink)
stronger800 Super Advanced Member Join Date: Mar 2003 Posts: 10,181	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.

10-11-2007, 10:46 PM	#8 (permalink)
zrbrian Super Advanced Member Join Date: Nov 2003 Posts: 109	Thanks, I will give the valves a shot this wkend.

10-12-2007, 08:46 AM	#10 (permalink)
5youngs Super Advanced Member Join Date: Dec 2002 Posts: 454 Location: Elmira, N.Y.	Here is a picture of your cylinders.

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