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Help !!! What size jets to run ?

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12 Feb 2006 13:56 #23387 by kz1000ltd
Help !!! What size jets to run ? was created by kz1000ltd
I have a 1978 kz650 with the 810cc big bore kit and im going to be running 28mm carbs and im not sure what main jets and piolet jets to run. I will also be running k&n pods. Any ideas will be greatly appreciated. Thanks in advance.............;)

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17 Feb 2006 15:35 #24552 by MDawnz1
Replied by MDawnz1 on topic Help !!! What size jets to run ?
You have to start somewhere.
If they are stock 28s ,from whatever, look them up in the book.

If not , pull ONE apart.

You NEED to know ,,,,
The needle #
The clip slot #
The main jet #
The pilot jet #
And write it down .

Start it up and see how it runs.
It will run.
Its just tuning from there.

PS before you mess with the carbs ,,,,,,
EVERYTHING ELSE has to be perfect or you will just be wasting your time.
1974 Z1a, still 903

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