XS1B Carbs FuelLevel01 Float testing unladen (no valve pressure) 30mm diameter floats. 13mm above the surface, 17mm submerged.
XS1B Carbs FuelLevel04 The fuel level is 11mm below the bowl's top edge.
XS1B Carbs FuelLevel03 When removed, the fuel in the float bowl is lower since the floats aren't in there.
XS1B Carbs FuelLevel02 Floats set at book value of 25mm. Clear tube test shows 2mm below carb body lip. The gasket base (reference surface) is 1.5m
XS1B Carbs FuelLevel01 Float testing unladen (no valve pressure) 30mm diameter floats. 13mm above the surface, 17mm submerged.
71XS1B Carbs Overflow05 The vertical splits are soldered as far down as possible. Then the tubes are coated in epoxy and slid down onto the overflow
71XS1B Carbs Overflow04 The overflow tubes are 3mm OD. Hobby brass tubing of 5/32" OD, 1/8" ID, 0.4" (10mm) long. These sleeves will repair the ove
71XS1B Carbs Overflow03 It gets worse. Not only were bubbles emerging from the base of the overflow tubes, but from vertical splits as well.
TwoManyXS1Bs

XS1B Carbs FuelLevel01 Float testing unladen (no valve pressure) 30mm diameter floats. 13mm above the surface, 17mm submerged.

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1971 XS1B BS38 carburetor rebuild
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