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Re: Idling Problem While Warming & Carb Leaking

Posted by seestheday on Apr 27, 2013; 4:22am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Idling-Problem-While-Warming-Carb-Leaking-tp4039897p4039908.html

Insulators connect the carbs to the head.

Sent from my BlackBerry device

From: 2stroker_4_life [via Honda CB750'S]
Sent: Friday, April 26, 2013 11:28 PM
To: seestheday
Subject: Re: Idling Problem While Warming & Carb Leaking

Shit eh alright. The float isn't sticking, I believe the seat is just worn. I hate to sound like a newbtard, but what part are you calling the insulator? Do you mean like the air boots? I think they all look good, I'll check them out though for sure! Why do you think it would only do this once warm?

-sean

On 2013-04-26, at 10:16 PM, "seestheday [via Honda CB750'S]" <[hidden email]> wrote:

Check for a vacuum leak by spraying a flammable aerosol (unlit propane torch, wd-40, etc) around the carb insulators.  That is a likely source of your vacuum leak.  You should be able to isolate it to at least the left or right side of the bike (carbs 1-2 or 3-4).  Lots of places they could be leaking.  Cracked old insulators are the usual culprit, but it could be leaking via a loose carb sync vacuum sensor screw or even somewhere inside the carb.
1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals

My wife's recipe website that I'm trying to help promote: BuffyAndGeorge.com. Yes, I am a lucky man.



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NAML



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1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals

My wife's recipe website that I'm trying to help promote: Strawberries for supper. Yes, I am a lucky man.