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trouts2




Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328

Toro CCR 2000E Mikuni carb needle valve setting question.
Original Message   Mar 27, 2008 8:26 pm
    Picked up a CCR2000E non-starter pretty cheap today.  Took the carb off for a cleaning and got it starting and running well.  But I'm not sure about what the setting should be on carb. 

   The main jet seems fixed but on top is probably a low speed adjust needle.  What is the initial setting for that?

   The Toro parts breakdown does not list the carb number, the carb as an assembly, or the carb body other than "carb body" without a part number.  The engine is a 47pml-5 Suzuki.

ke

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trouts2




Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328

Re: Toro CCR 2000E Mikuni carb needle valve setting question.
Reply #7   Apr 29, 2008 8:59 am
You're right about the perception problem. I've only messed with a handful of the two stroke snowblower single stages. The issue was trying to get it perfect and not knowing the factory setting for the low idle screw. A low idle screw on a no throttle machine was the weirdness. Since it was a second hand machine and I had taken the carb off and cleaned it I wanted to get the factory settings for a known start. Since posting I asked a few more dealers and they did not know. I did not know if the prior owner had messed with the setting so wondered what the factory called for.

I messed with the low idle setting for a while running it up and down trying to find its limits and one to two turns out seemed to be its range for best running.

It ran well enough. I was just trying to get that last max. The ash as Borat suggested checking was fine.
This message was modified Apr 29, 2008 by trouts2
Macbass


Joined: Feb 9, 2010
Points: 1

Re: Toro CCR 2000E Mikuni carb needle valve setting question.
Reply #8   Feb 9, 2010 5:10 pm
I have the same carb on my snowblower. Worked great until today. Won't start. I gave it a quick cleaning, and still nothing. I am going to give it a much better cleaning tomorrow. My question is, to the left of the needle valve, in the picture is another screw. The needle valve has a spring on it, the one to the left does not. How tight should the one on the left be tightened?
clint


Joined: Dec 6, 2008
Points: 16

Re: Toro CCR 2000E Mikuni carb needle valve setting question.
Reply #9   Feb 9, 2010 6:32 pm
Macbass wrote:
I have the same carb on my snowblower. Worked great until today. Won't start. I gave it a quick cleaning, and still nothing. I am going to give it a much better cleaning tomorrow. My question is, to the left of the needle valve, in the picture is another screw. The needle valve has a spring on it, the one to the left does not. How tight should the one on the left be tightened?

In the picture above, the screw on the left is the pilot jet.
It is not an adjustment screw and it needs too be snug. It is soft brass and cant be reefed on too hard or it will distort.
It has a very small passage that runs from the tip where it connects with 2 larger passages on the sides.
That passage sometimes needs too be cleared with a very thin wire. When its plugged, surging is the main symptom.
This message was modified Feb 9, 2010 by clint
brandon08mitchel


Joined: Sep 8, 2010
Points: 1

Re: Toro CCR 2000E Mikuni carb needle valve setting question.
Reply #10   Sep 8, 2010 11:19 pm
I have a Mr Gasket carburetor needle valve and it's perfectly okay. Don't what settings you want but a pic would be a help.
This message was modified Sep 8, 2010 by brandon08mitchel
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