fuel injection regulator - HCS Snowmobile Forums

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Old 10-26-2008, 10:19 PM   #1 (permalink)
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I have a 1998 arctic cat zr600 le with fuel injection the fuel regulator is dis-connected and I can't find any vacuum on the motor for it The onl thing that might fit is a coolant line blocked off any ideas? thanks
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Old 10-27-2008, 11:57 AM   #2 (permalink)
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Are you talking about the thing on the end of the fuel rail? Usully gold looking, Diapraghm style?
If that is what you are calling the regulator, then it doesn't get a vacuum line hooked up on it. Just an open barb end. Must just want atmospheric pressure only.
Sorry I don't know the exact name for that part.
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Old 10-27-2008, 12:09 PM   #3 (permalink)
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Yeah the hose on the end of the fuel pressure regulator is just a air vent hose and is not connected to anything.
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Old 10-27-2008, 06:45 PM   #4 (permalink)
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ya thats what i'm talking about no wonder i can't find it it bogs sometimes when you let off the gas and then when you hit the gas it falls on its face when you feather it it comes back and runs good pain in the woods on tight trails Thanks for your help Thats been bugging me for awhile Can look at maybe trying to clean injectors?
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Old 10-27-2008, 10:35 PM   #5 (permalink)
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I had a similar prob with my 93 Wildcat efi last year. I removed fuel rail and checked it and cleaned it and found nothing wrong with it. Only thing I realy did was adjust throttle cable differently, down if I remember correctly, and it started running great again. I don't know if there is a tps on there or what, but it's something simple and free to try. Good luck with it.
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Old 10-28-2008, 11:46 AM   #6 (permalink)
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Yeah, might be the TPS is they have it on that model.
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