Carb cutoff valve

Old forum posts ending on Oct 21 '09

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krick3tt
Posts: 2457
Joined: Thu Mar 16, 2006 6:48 pm
Location: Denver, CO USA

Carb cutoff valve

Post by krick3tt »

Another problem has surfaced with the wonderful machine.

Symptoms: Sometimes it diesels and sometimes it won't hold the idle.

I think perhaps it is the third (from the front) cutoff valve.

When I was balancing the carbs and checking the cutoff valves for operation, the 3rd one clicked just by touching the connector. The others had to actually be removed to hear the click.
When I am driving and hit a bump in the road I think it shifts from off to on and back again, cause it goes from idling fine to having to goose the throttle to keep idle when I am stopped at a light.
There is also a slight smell of gas. I presume as the fuel builds up not going through that barrel of the carb and when I hit another bump and the switch is knocked into operation everything is fine.

Anyone have thoughts on this and how to solve it?

I had planned a trip to the desert this weekend but do not want to call from the middle of nowhere for assistance.

Cheers,
Morris
Lightningpinz
Posts: 218
Joined: Mon Apr 19, 2004 7:32 pm
Location: Lakewood, Co

Post by Lightningpinz »

Change it now before you go.
(Anyone have thoughts on this and how to solve it?

I had planned a trip to the desert this weekend but do not want to call from the middle of nowhere for assistance. )
Jim LaGuardia
United States of America
Posts: 1707
Joined: Wed Apr 14, 2004 3:42 pm
Location: San Bernardino Ca
Contact:

Post by Jim LaGuardia »

First see if the plastic center is loose, if it is you are correct in your diagnosis 8) You may be able to temp repair with super glue and epoxy.
Turn key to on, when solonoid energizes(clicks on) super glue the loose center to it's housing, retest for operation, then use epoxy to re-seal the center.
Then order a replacement as this is a temp fix :wink:
Cheers, Jim LaGuardia
http://smg.photobucket.com/albums/v510/Goatwerks/
"Arch Magus of Machines."
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