7-10CARBCARBURETORS AND FUEL PUMPFUEL LEVEL ADJUSTMENT1. Measure:• Fuel level aOut of specification → Adjust.Measurement steps:• Install the fuel level gauge 1 to the fuel drainpipe 2.• Loosen the fuel drain bolt.• Hold the fuel level gauge vertically next to theline on the float chamber.• Measure the fuel level a on both sides of thecarburetor assembly.NOTE:The fuel level readings should be equal on bothsides.Fuel level (below the line on the floatchamber):0.2 ~ 2.2 mm (0.008 ~ 0.087 in)Fuel level gauge:90890-01312, YM-01312-A2. Adjust:• Fuel levelAdjustment steps:• Remove the carburetor assembly.• Inspect the needle valve seat and needle valve.• If either is worn, replace them as a set.• If both are fine, adjust the float height by bend-ing the float tang 1 or the float.• Recheck the fuel level.1
