Inspect the air filter, EGR valve hose, and breather hose before dismantling.
If your Zen is a , it has electronic fuel injection — no carburetor exists. maruti zen carburetor service manual
Regular service is recommended to prevent common issues such as a jammed secondary butterfly valve, which often occurs in city-driven cars due to fuel "gumming". Inspect the air filter, EGR valve hose, and