1978 kz1000a renew and revenge project

  • bry195
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Re: 1978 kz1000a renew and revenge project

23 Feb 2025 14:06 - 23 Feb 2025 17:55
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I guess I could have did a better job at explaining what you see. In the sequences of pictures its starts with carb 1 then 2,3,and 4. Red in the AFR curve will be anything above 14.7, green is anything above 12. The sawtooth waveform is from giving it mid throttle and releasing over and over again.  

What you can see is that in the first set of pictures, carb 2 and 3 would go lean on mid throttle. I moved the clips 1 position down which lifts the needle all the way up on carb 2 and 3. The second round of 4 pictures shows all 4 carbs responding to the throttle by going to an AFR of slightly above 12. The concept is to have the bike idle at 14.7 for efficiency and enrichen to 12 for power. It looks like it worked out pretty well.

So in summary, Idle afr is yellow of something below 14.7. I give it throttle and it goes green, which is something above 12. It’s synchronized and responds to throttle like any other performance motor Ive had. I could take pictures of the plugs if anyone is interested in reading the salts.

Thank you gentlemen for the explanation and the manual. 
Last edit: 23 Feb 2025 17:55 by bry195.

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