1987-2006 Suzuki ATV LT80 Service Manual, Page 94Get this manual

1987-2006 Suzuki ATV LT80 Service Manual, Page 94

FUEL AND LUBRICATION SYSTEM NEEDLE VALVE INSPECTION If foreign matter is caught between the valve seat and the needle, the
of the plug as well as the surface of the piston crownThe color observed tells whether the mixture is too rich or too lean,
When replacing the spark plug, consul he page MIXTURE ADJUSTMENT This adjustment is effected mainly by main jet and jet needleBefore
doing so, check to he !lUre that the float level is correctly set and that the overflow pipe, vacuum hose, inlet hose and
air cleaner are in sound condition Find out at which th ronle position the engine lacks power or otherwise performs poorlyDrive
the machine at the thronle position for distance of about 10 km, after which the spark plug and piston crown should be inspected
for color and appearance, The mixture can be made "richer" or "leaner" in three ways: namely, by alterring main jet, jet
needle and pilot jetEffectiveness of these ways depends on the throttle position, as shown in this chart Throttle openinll