Question about 1988 Yamaha XV 535 Virago DX
1984 xv700 virago flooding front cyl really bad....tried rebuilding carbs...new metering seat and valve...checked floats.no bubbles or leaks'
did not pull tops off (diaphram) carbs. hate to even think of it........could a bad valve cause a fuel build up??? no pop or backfires
at wits end....PLEASE GIVE ME A CLUE....
If the carb is leaking from the fuel escape hole on the bottom of the carb, then the fuel is not being stoped by the valve connected to the float. It maybe that the vibration of the bike loosened the screw holding the float in place and it is no longer pushing the valve up to stop the fuel flow when the carb is full. You must remove the base of the carb, check the float, needle and screw, and re-secure the float and valve needle (not the accelerator needle). It might be a good idea to use Teflon screw tape to make sure the screw doesn't vibrate loose again. These little screws often loosen up on older bikes, but are easily tightened with a little Teflon screw tape (the white non-adhesive tape stuff at the auto supply store). This worked well for me.
Posted on Oct 28, 2009
Let me tell you how i check to see if the float and needle valve is working properley in a carb. take the carb off git a hand pump off a out board motor. hose and all take the ends off put the suction end in a can of gas and the outlit end to the gas inlit on the carb. squeez liteley on the bulb that should let you no if the carb is leaking some ware. if not then you no for sure that the problem is some were else.goodluck davidbaxley.
Posted on Apr 17, 2009
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Posted on Jan 02, 2017
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