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94 seirra missing firing

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outram

Joined: Mon Aug 30, 2010 9:51 am
Posts: 130
Location: newcastle
Vehicle: suzuki sierra sj80

Posted: Tue May 03, 2011 10:56 pm

hey guys had some work done to the carbi while ago and it came back with a miss just wondering where would be a good place in newcastle to get the carbi checked out cheers

SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Tue May 03, 2011 11:18 pm

Misfires are usually associated with the spark rather that the carby.

Id be starting the cr, and pulling a lead at a time off its plug, seeing if one of them makes no difference to the way the engine runs.
If you pull a plug lead from a working plug, the engine will run ruff and vibrate, if its pulled from a plug that isnt working, no change in engine characteristics.

IF you find this is the prob, then you must work out if its the dizzy cap, lead or plug.

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steak_knife

az supporter

Joined: Fri May 22, 2009 11:30 pm
Posts: 21335
Location: Smart Ass Island

Posted: Tue May 03, 2011 11:42 pm

SuziBlu wrote:

Misfires are usually associated with the spark rather that the carby.

But a to rick to lean can cause miss fire's to..

Start with your spark plug's & work your way out, keep your plug's in order & post a pic...

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Tue May 03, 2011 11:53 pm

Stecky, your 100% right, but, i always start with the first things first sort of thing.

In this instance, i suspect rich, but, electricals first.

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steak_knife

az supporter

Joined: Fri May 22, 2009 11:30 pm
Posts: 21335
Location: Smart Ass Island

Posted: Tue May 03, 2011 11:59 pm

SuziBlu wrote:

Stecky, your 100% right, but, i always start with the first things first sort of thing.

In this instance, i suspect rich, but, electricals first.

I said that....... :wink:

Viewing the spark plug's will tell me lot's, hence asking for them to be in order ( as in 1,2,3,4 as they came out)......

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JrZook

Joined: Tue Aug 08, 2006 11:30 pm
Posts: 5517
Location: Holland Park
Vehicle: Awesome!!

Posted: Wed May 04, 2011 12:04 am

outram wrote:

hey guys had some work done to the carbi while ago and it came back with a miss just wondering where would be a good place in newcastle to get the carbi checked out cheers

If the carby just got done and nothing else, then id assume your miss is more of a lag,bog down or flatspot. Have more info?

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outram

Joined: Mon Aug 30, 2010 9:51 am
Posts: 130
Location: newcastle
Vehicle: suzuki sierra sj80

Posted: Wed May 04, 2011 1:38 am

sorry should of stated i have changed the leads ,plugs, dizzy cap and rotor button with no affect and its a bog down then i jumps back into life it wasn't doin it untill i got the work done on the carbi

JrZook

Joined: Tue Aug 08, 2006 11:30 pm
Posts: 5517
Location: Holland Park
Vehicle: Awesome!!

Posted: Wed May 04, 2011 1:57 am

outram wrote:

Sounds like an accelerator pump issue

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Wed May 04, 2011 1:58 am

JrZook wrote:

outram wrote:

Sounds like an accelerator pump issue

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steak_knife

az supporter

Joined: Fri May 22, 2009 11:30 pm
Posts: 21335
Location: Smart Ass Island

Posted: Wed May 04, 2011 3:46 am

Or the vacuum advance line is on the wrong port of the carby...

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I used to be indecisive,
now I'm not so sure.....

LAY80N

Joined: Tue Jul 28, 2009 11:30 pm
Posts: 455
Location: Newcastle NSW
Vehicle: I drive your mum

Posted: Wed May 04, 2011 7:11 am

If you want a hand i could take a look at some stage in the next week or so.

Layto....

outram

Joined: Mon Aug 30, 2010 9:51 am
Posts: 130
Location: newcastle
Vehicle: suzuki sierra sj80

Posted: Wed May 04, 2011 10:44 pm

hey mate that would be greatly apprecated cheers

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