How to adjust oil pump? - - Arctic Cat Forum

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post #1 of 3 Old 02-09-2006, 04:36 PM Thread Starter
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Sled: 2001 z440 sno pro
ATV: 2002 400ex
I have a 2001 z440 sno pro and it was just had some motor work done so the pump was set rich. I was wondering how to set it back to normal? I hear we are supposed to be getting some SNOW soon so I want to get it ready.

Thanks Zak
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post #2 of 3 Old 02-11-2006, 09:11 AM Thread Starter
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Sled: 2001 z440 sno pro
ATV: 2002 400ex
Can any one help?
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post #3 of 3 Old 02-11-2006, 07:37 PM
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Sled: '06 T660 ST
08-09 Mileage: 1000
07-08 Mileage: 1500
06-07 Mileage: 1700
2007 Mileage: N/A
Arctic Honda,
Probably no one is responding.. is cause if anyone tells you to change your oil pump set up.. and it blows up.. your going to be angry at them.

My ZR600 has always used more oil than most..and I have made adjustments on the oil pump. At 7500 miles on my sled.. A piston went.
I don't know if it was directly related to the oil adjustment or not, but I turn the oil back up anyway. Oil is cheap compared to pistons and cylinder.

There is a stamped line in the metal rotating piece on the oil pump.
Also there are two stamp marks in the aluminum housing of the pump.
One is for idle setting, the other is for full open setting.
The mark on the rotating metal piece, should line up with the housing marks at idle and full open.
I have been told these pumps are touchy with adjustment, so if you plan to tweak it, only a line thickness at a time!

I have a picture of mine.. adjusted 3-4 line thicknesses off!
[attachment=31891:attachment] Look in the dental mirror to see the two marks.
Operate the throttle stare at the pump operation.. to understand it, so you know which way to adjust, it can throw you off if your not paying attention.
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