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post #1 of (permalink) Old 10-03-2001, 04:41 PM
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stalling

o.k. when i trail ride, my Zuk sometimes stalls out(floods) when hitting some rough bumps...is this normal, or can i fix this...it normally only happens going uphill, but has occurred on relatively flat ground...i think it floods out, because i can usually start it back up after a long cranking episode, and blocking off the fuel line to carb until vehicle stalls again(float bowl drained), then restart and it's good as new...any comments? how can i aviod this potentially dangerous malfunction???it has never stalled on the hill, usually just after making it all the way up...

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post #2 of (permalink) Old 10-04-2001, 11:56 AM
 
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Re: stalling

When was the last time your O2 sensor was changed? if it is not working correctly, It will cause your carb to flood thinking that there is not enough gas getting into your carb.
the air/fuel mixture is the only thing that is actually computer controlled in your carb and it takes readings from your O2 sensor as well as from your EGR system and a couple of more.
But most of your whole engine is controlled by the vaccume hoses, and if one has a leak, it will cause wierd stuff to happen,
so the other thing I would check would be the vaccume hoses.

These samurais are getting old and rubber does die after 13 or so years.

I believe that an average reading on your O2 sensor is between .7volts and 1 volt if you have a voltage meter
you can check it.

hope this helps some.

Rich_D
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post #3 of (permalink) Old 10-04-2001, 12:18 PM
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Re: stalling

What about installing a fuel pressure regulator and dial it down off-road, or will that screw everything up royally?

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post #4 of (permalink) Old 10-04-2001, 12:34 PM
 
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Re: stalling

As long as the various hoses and sensors are working, the computer does grate.
I dont know if it will mess things up, but the computer will be asking for more and not getting it,
so it could mess things up, I just dont know.
if you have a haynes manuel, I believe it tells you what to look for on the O2 sensor or it may give you some other suggestions.
I will check mine tonight and let you know what other suggestions it has tomorrow
you can get an Bosh O2 sensor for about $30. I believe that I saw one in one of the suzuki only websites,
I dont remember which one it was.
it is one of the ones linked to izook.com
I do know that the dealer wanted 100 - 200 bucks for one, I about fliped, and went to an import parts store, but this
was about 8 years ago.

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post #5 of (permalink) Old 10-04-2001, 01:24 PM
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Re: stalling

The pressure regulator should not mess up a closed loop
carbed sami. All you are doing is keeping the level constant
in the floatbowl. Worse you would have to do is turn the
pressure back up some.

Glenn
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