Question about Motorcycles
Floats may be fuel logged. Can these be fixed?
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
The adjuster tang on the float (in green) rises and falls to maintain fuel level. It pushes on the float needle to stop the flow and drops to let fuel in. Did you loose the needle? If all parts are there, gently bend the tang upward to lower the gas level in the carb.
A “very helpful” rating for this answer? Thanks!
Posted on Jun 28, 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
Hello dnjvp...The Hitachi HSC 40mm carbs on the 920 can be jetted and modded as needed to give you the right mixture for any engine or exhaust modifications.
Here is the breakdown for the slide and the internal parts. Check the needle for wear, clean all parts and put back together. Make sure you hold the diaphragm up to the light and check for pinholes. If any are found use a sealer like to fix.
Good luck...i hope this helps.
Posted on Jul 29, 2009
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