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tuning carby on a 91 mod sierra

Tech Talk for Suzuki owners.

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Posts: 52
Joined: Mon Jan 07, 2008 12:42 pm
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tuning carby on a 91 mod sierra

Post by bornstar15 »

hey all just wondering my zook is running rich as hell and starting to notice it on the fuel bill aswell i took it to my local mechanic and he told me that u need a special tool to tune it is this true if not i would love to know how ot tuneit so im not up for another carby but if so can i put a new model carby on or are they a diffrent set up thanks mate
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Post by Gwagensteve »

There's no fuelling adjustment in a sierra carby, it's factory set AFAIK. The real question is why your carby has started delivering more fuel than it was - they normally go the other way.

Steve.
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Post by alien »

I had similar issues when the choke clogged up... have a check and see if its that... (youll also notice a lumpy idle, some stalling and backfiring on downhills in gear).
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Post by =SKB= »

alien wrote:I had similar issues when the choke clogged up... have a check and see if its that... (youll also notice a lumpy idle, some stalling and backfiring on downhills in gear).
Yep.

If the Zuk still has its auto choke, then it could be stuck on, hence chewing more fuel. Take it to a carby rebuilder or remove the auto choke, ie wire the choke open. Just let the car warm up a bit before driving.
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Post by bornstar15 »

rightio ill check out the choke see if its sticking on cheers
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Posts: 52
Joined: Mon Jan 07, 2008 12:42 pm
Location: Australia

Post by bornstar15 »

choke is working fine i am now thinking it could just be a tired engine, hopefully if money prevails ill be getting a new engine within a few months anyway so ill jsut baby her till i get the new donk
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Post by JrZook »

Gwagensteve wrote:There's no fuelling adjustment in a sierra carby, it's factory set AFAIK. The real question is why your carby has started delivering more fuel than it was - they normally go the other way.

Steve.
There is one for the idle fuel mixture it is hidden under a tamperproof cap, but it is possible to remove the cap.

Cheers Dan
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