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Moto3 User Manual
Gulp valvel
Functional introduction for secondary gulp valve of emission use with State III standard:
Connect air filter with air inlet tube, and then, connect air outlet tube to metal tube on the cylinder head. Connect the
negative pressure tube of the gulp valve with the air inlet tube on engine, control the entry of air into the exhaust pipe
through changing negative pressure in air inlet tube on the engine, decrease CO, HC, and Nox.
1. Negative pressure tube on gulp valve
2. Air inlet tube
3. Air outlet tube
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