My EGA readings off the scale! - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 6 (permalink) Old 09-23-2006, 04:41 PM Thread Starter
 
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My EGA readings off the scale!

Yes indeed its quite scary what the machine was churning out and telling me so here it is

CO : 2.65% HC: 2300ppm

Wow 2300ppm? if i only had a blowtorch at the end of my pipe i'd probably get a large flame?? Its running rich baaaad! i later find out it's comming from cylinder 3 & 4.

What do you think i should do? im not entirely sure where the mixture screws are on my ZX-6E or do you think i should clean out all my carbs, i would rebuild the whole bank but money's an issue so i cant!
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post #2 of 6 (permalink) Old 09-23-2006, 05:22 PM
 
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Bike year, model and mileage, please, plus time and mileage since last tuneup/ carb synch; and, has the bike sat for a long period?
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post #3 of 6 (permalink) Old 09-23-2006, 05:42 PM Thread Starter
 
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Right you need the info and here you go!

1995 kawasaki Ninja ZX-6 E, 44,895 miles on clock. Did oil change, new oil filter + air cleaner last week. Synch carbs 2 days ago. Time that bike has been sitting before i bought it...Unknown

also been known bike has been droped somewhere in its passed life,

Hope this helps

Also replaced with new plugs during the time i was changing oil and air cleaner

Last edited by KillerR33d; 09-23-2006 at 05:51 PM.
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post #4 of 6 (permalink) Old 09-23-2006, 08:42 PM
 
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High HC readings are the result of unburned or partially burned fuel. First make sure each spark plug wire is on the correct plug.
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post #5 of 6 (permalink) Old 09-23-2006, 08:54 PM
 
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Also make certain that the float bowl heights are set correctly, the floats actually float (both metal and plastic ones can leak, never float, and therefore are always overfilling the carb bowls) and that the float needles and jets are clean and not worn/grooved; so many of the air bleed passages are so tiny and affect fuel delivery pressure. I'm also not sure if you have CV carbs on that model...but leaking slide diaphrams can also screw up the carbs.

If all the basics check out, try adding Yamaha carb cleaner (about 4 ozs.) to a few tankfulls of gas; it has helped unmung-up (it's my word) mildly dirty carbs (mildly dirty means it still runs) on a few of my "rescues".
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post #6 of 6 (permalink) Old 09-23-2006, 09:21 PM Thread Starter
 
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The spark plug wires are hooked up to their corresponding cylinder since they are marked accordingly

oldetymebiker, the carbs are indeed CV type i have never known the ninja models to have a mechanical slide carb though i could be wrong.

I shall try the Yamaha carb cleaner like you said and if it is still running rich then i'll check float heights and clean out the jets

Thanks for the advice! i'll keep you updated
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