Excessive valve-stem clearance speeds up valvedeposits.
气门杆间隙过大会加速气门的积炭。
2
Cleans carbs and injectors, Reduces intake valvedeposits, Removes water, Save gas.
清洁喷油器，减少进气门沉积物的形成，去除油质中德水分，节省燃油。
3
Valvedeposits. If the fuel has excessive amounts of gum in it, some of this gum may be deposited on the intake valve as the air-fuel mixture passes the valve on the way to the engine cylinder.