Just locate the breather hose which connects to the valve cover and install one there
and another one on the PCV hose too. Both hoses connects to the valve cover, you
can spot them pretty easily. Dun tell me u dun know whats a valve cover is.
Install one on yr breather and yr carb stays clean longer, only if u already clean yr
carb in the first place. Install one on yr PCV, this is to prevent dirty oil from gettng
into yr intake manifold and to the chamber of combustion while still allow unburn
hydrocarbon gas to get pass and burn and this should be giving u slightly to none
better fuel economy and more environmental friendly.
Alternatively, u should occasionally spray crab cleaner if u dun install oil catch tank.
This will clean the chamber and carb too if u spray it into the carb. While for chamber
cleaning, get some one to rev up the engine to 2k rpm and remove the PCV hose from
the PCV, spray crab cleaner directly into the PCV hose and ask yr mate not to let
go her foot, if not the engine will stall due to massive air may rush into the engine.