Engine Breather System - Royal Enfield Bullet Classic EFI Service Manual

WORKING PRINCIPLE
The engine breather system is located on the RH cover of the crankcase. A connecting hole directs
the engine breathing into a chamber in the RH cover which has an inbuilt deflector to deflect the oil
that may come along with the fumes from the crankcase. This oil gets drained through a small hole
provided at the bottom of the breather chamber.
The emission passes through the deflector chamber and goes to the air filter housing and passes
through the inlet manifold back into the cylinder head.
ENGINE BREA ENGINE BREA
ENGINE BREATHER SY ENGINE BREA ENGINE BREA
Breather
arrangement
inside the
RH cover
THER SY THER SY STEM STEM
THER SYSTEM THER SY STEM STEM
04-8