2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 112Get this manual

2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 112

FUEL SYSTEMCARBURETION FLOAT SYSTEM Fuel enters the float chamber (3) by means of the inlet pipe and passage, through screen
slide height 5 Inlet Pipe CARBURETOR DISASSEMBLYMIKUNI CV Use the following disassembly, assembly, and inspection techniques
to service CV carburetor1 1Remove carburetor diaphragm chamber cover with ratchet style screwdriverDO NOT use an impact driver
to remove the screws or carburetor may be permanently damaged MAIN SYSTEM As throttle valve (1) is opened, engine speed rises,
and this increases negative pressure in the venturiConsequently the vacuum slide (2) moves upwardThe fuel in float chamber
(3) is metered by main jet (4), and the metered fuel enters needle jet (5), in which it mixes with the air admitted through
main air jet (6) to form an emulsionThe emulsified fuel then passes through the clearance between needle jet (5) and jet