83 440ltd holding rpms when throttled

""""""""""Ignorant, No, knowledgeable yes, put flat slides round slides on it will work with pods, CVs No, you either get it performing mid range, bottom and top but not across the whole range, time and time again this subject is broached and no one gets the whole package, but if your attitude is near enough is good enough then go ahead. and although you think my so called knowledge, to you ignorance is admirable, your stupidity """"""""

If you can't take it, don't dish it out.
You are the one that posted a wise arse comment with out contributing anything positive.


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Okay great. Got those filters ordered. After they come in I'll tinker around a bit and let you know how things are going. Thanks again!

Your welcome.
When you get your carbs sorted I can show you a couple no cost ways to increase the output of the KZ400/440.


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I can take it all day long, my comments are positive, and you will most positively not get pods running consistantly accross the whole rev range no matter how much dreaming you throw at it, i say it as it as dont blow smoke up anyones arse.

I guess the issue I see with pods on CV carbs is the fact that they do not create the same air flow dynamics as the air box, and that will affect the operation of the carbs.

Take a look at the video in the link below; it shows how CV carbs work. Notice at time 1:20 when the throttle is opened the throttle vacuum passage opens and the throttle valve diaphragm retracts. This causes the throttle slide and jet needle to rise. The amount of air that is drawn through the main intake is critical in that as a greater proportion of air is drawn through it the less vacuum is available at the throttle vacuum passage which in turn affects the opening of the throttle vacuum passage. At time 1:56 with the throttle wide open the vacuum at the vacuum passage pulls the diaphragm and jet needle all the way up.

As I see it the difficulty in getting pods to work well on the CV carbs is dealing with the fact that the resistance to air flow through the main intake is reduced which in turn reduces the vacuum available to pull the diaphragm up. Consequently, tuning the carbs so the engine runs great at wide open throttle will normally be detrimental to the way the engine runs at other throttle openings and vise versa. This may not be of any importance to a person using the bike on the track since he will not necessarily care about how the engine performs at moderate throttle openings, but for street use this can be an issue.

In any case, you may find the video interesting and informative. Ed

Here's some info from one of the Mikuni engineers who worked on designing the KZ air box. This guy was a professional engineer who really understood how the air box affects the carb operation. Ed