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Carb/Idle Question

This is a discussion on Carb/Idle Question within the Grizzly Talk forums, part of the Grizzly Forums category; I have a 2005 660. I recently rebuilt the carb. It starts up fine with the choke on but once I take the choke off ...


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#1
09-20-2011, 01:50 PM
Carb/Idle Question

I have a 2005 660. I recently rebuilt the carb. It starts up fine with the choke on but once I take the choke off it generally dies as the idle is really low. WIth the choke on the idle isn't very high (and much lower than it was before I rebuilt the carb.) I am thinking I didn't do something with the pilot screw (any ideas where this is?) as I don't recall backing the screw out the required 2.5 times but wanted to see if anyone had any other thoughts. I have adjusted the throttle stop screw and that helped some but didn't fix the issue.

Also, is the drain screw suppose to be fully shut off in a normal situation?

Thanks,
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#2
09-20-2011, 09:02 PM
ya, flip the carb upside down and it's between two gold colored big headed screws. Rebuild kits usually come with new orings for that.

Oh, you can adjust the idle by turning that screw on the end of a long spring looking thing
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#3
09-20-2011, 10:58 PM
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Originally Posted by gezell75 View Post
I have a 2005 660. I recently rebuilt the carb. It starts up fine with the choke on but once I take the choke off it generally dies as the idle is really low. WIth the choke on the idle isn't very high (and much lower than it was before I rebuilt the carb.) I am thinking I didn't do something with the pilot screw (any ideas where this is?) as I don't recall backing the screw out the required 2.5 times but wanted to see if anyone had any other thoughts. I have adjusted the throttle stop screw and that helped some but didn't fix the issue.

Also, is the drain screw suppose to be fully shut off in a normal situation?

Thanks,
I'd almost assume that you didn't touch the pilot screw if you aren't sure where it is.
Two things: First, yes, try the idle screw. The idle screw doesn't actually change the air fuel mix, it just turns up the throttle a little bit.
Second, if you haven't adjusted the valves, do so. I did mine last winter and I might as well have ripped the choke lever off the bike. Haven't touched it since.
If you adjust the idle screw and that takes care of the problem, that's great. If not, and you're not sure you changed the A/F setting, then I'd look at checking the valves.
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#4
09-25-2011, 09:34 PM
Thanks guys. It was the pilot screw. I did replace it but didn't back it out 2.5 times from the seated position. Machine is running good now. It does have a pesky drip out of the drain tube that I will now try to fix.
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#5
09-26-2011, 12:56 AM
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Originally Posted by gezell75 View Post
Thanks guys. It was the pilot screw. I did replace it but didn't back it out 2.5 times from the seated position. Machine is running good now. It does have a pesky drip out of the drain tube that I will now try to fix.
You need a new drain screw:

PLUG,DRAIN
Part# 12R-14191-00-00
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