Question about Motorcycles
Float level does not look right and floods bike when set to 6.5mm as per Keihin site
Posted by Anonymous on
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Posted on Jan 02, 2017
I don't know if its any help but I've fixed my Honda with similar problem. It turns out I reassembled the rich carbys air cut off valve incorrectly. Have you checked yours? I'm wondering if the cut off valves somehow affect the other parts of the carbys. Mine is running sweet now.
Posted on Apr 24, 2009
to check the float height, invert the carb body holding the float arm pin so the pin will not slip off. With the float arm kept free, measure the height it should be 22.4 + or - 1.0mm
This is what the shop manual says.
basically what that means turn the float bowl upside down and keep the bottom of the float even with the edge of the bowl.
Posted on May 18, 2009
I have a 1982 Virago 750 that I just did a carb rebuild to. To set the float levels I built a jig from wood that simulates the position of the carbs when mounted on the bike. This jig clamps into my bench vise. I created a fuel supply using a small funnel and a piece of fuel hose mounted above the level of the carbs.. After that all you need is a short length of transparent fuel hose to attach to the drain on the bottom of the float bowl to provide the visual indication of the float setting. Now you are ready to set up the float levels on your bench. This is way easier than trying to set them up in the bike.
Make sure that the jig is set up so that the carbs sit as level as possible across the pair and that they sit as close to the natural position in the bike in the lengthwise position when the bike is sitting level.
The process of setting up these floats can be very tedious, be patient. It may require that the float bowls be removed multiple times to get it correct (I replaced the philips head machine screws with allen head screws to make this easier). Printed instructions for the procedure look for a certain fuel level setting plus or minus 1mm. This kind of tolerance can be quite difficult to get when the only adjustment you have to work with is to bend the metal tang on the float assembly.
Posted on Jul 09, 2009
SOURCE: carburettor float level setting
Usually if the float is adjustable you will set it so if there is a flat surface on top or side of the float it will be parallel with the bottom surface of the carb body when the needle valve just closes (before depressing the spring in the needle)
Posted on Oct 03, 2009
Testimonial: "thanx a lot my friend i will give it a try. my 82 sabre floods permanently"
You'll have to contact me directly for that information. The reason is that the float level is not set in the more conventional manner like other carbs. The float level is set to0.413 - 0.453' from the "bottom" of the float to the lower face of the carb body with the carb tilted at an angle of 15 - 20°. A picture is worth a thousand words in this case. For a picture, contact me directly at wd4ity at bellsouth.net
Posted on May 09, 2010
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