I don't know if this tool has a name, I'm sure it does, but I will describe it and you all can enlighten me. My wife provides me with these little glass syringe tubes. They function just like a tall funnel or short pipet (medicine dropper without rubber bulb). If you know the other carb parts are clean then you need this tool for looking into what is going on inside the float bowl for each carb.
*The process* - I mount one pipet for each carb on a backboard of some kind and align them all horizontally so that I can measure the level of fuel in each one. - I connect a tube from the bottom of each one to the drains on each carb float bowl. - Then mount or simply hold this array of tubes next to the carbs where the normal level of fuel will not overflow the open top of the tubes. (preferably level, of course.) - Then I open up the drains at the bottom of each carb. with the bike level and the gas supply turned on and tank full of gas. - The fuel will drain out of the bowls and start to fill these glass viewing tubes. As the level rises in the tubes it displays the fuel level rising in each float bowl, until the float (should) shut off further filling. - All carbs should come to a stable level equal to each other. If not you will have the devil of a time actually getting all cylinders to perform equally at low throttle, or at any throttle in the worse cases. (if you are completely confused, and still interested, I can go out in the shop and find it and hook it up and include a photo of it working. But that would take a little work.) Through this test I can see exactly what the fuel level is doing in each bowl. If one is stuck or leaking then it continues to rise and overflow. But more frequently it tells me that I need to replace a float as one or two of them will come to a stable level higher than the others. Using this test I finally discovered that one float actually was "worn out". It looked pretty much just like the others. There was no diagnosing, or cleaning, or additive, or anything that could be done except replacing the bad float. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/nighthawk_lovers. For more options, visit https://groups.google.com/d/optout.
