A method for operating a Dual Solenoid Induction Cleaner working in conjunction with an internal combustion engine for removing carbon build up (hereinafter "carbon deposits") from the internal combustion engine while it is continuously running; the engine including an induction system, combustion chambers, and an exhaust system; the method including a use of a first chemistry and a second chemistry, wherein the first and second chemistries having different formulations each capable of removing at least some carbon deposits in at least a portion of the engine; and means for delivering the first and second chemistries to the induction system; the method including using a first reservoir for holding the first chemistry and a second reservoir for holding the second chemistry and sequentially delivering the first chemistry and the second chemistry from their respective reservoirs (3, 4) to apply multiple alternating layers of each chemistry to at least a portion of the engine, further using a first supply line connected to the first reservoir, a second supply line connected to the second reservoir, a first electric solenoid connected to the first supply line, a second electric solenoid connected to the second supply line, the first and second electric solenoids (36, 37) adapted to supply the first and second chemistry to an induction cleaner nozzle to apply multiple alternating layers of each chemistry to at least a portion of the combustion engine, and a control wire harness running from a microprocessor to the electric solenoids (36, 37) for controlling the electric solenoids (36, 37); the method of using the reservoirs (3, 4) for delivering multiple alternating layers including: - while the engine is running applying a layer of the first chemistry from the first reservoir to at least portions of the induction system for a first period of time, wherein the application during the first period of time constitutes a first chemistry layer; - while the engine is running applying a layer of the second chemistry from the second reservoir to at least portions of the induction system for a second period of time, wherein the application during the second period of time constitutes a second chemistry layer, and wherein the application of the first chemistry layer and the application of the second chemistry layer constitute a cycle; and - while the engine is still running repeating the cycle multiple times to produce multiple chemical layering within the induction system. the engine including an induction system, combustion chambers, and an exhaust system; the method including a use of a first chemistry and a second chemistry, wherein the first and second chemistries having different formulations each capable of removing at least some carbon deposits in at least a portion of the engine; and means for delivering the first and second chemistries to the induction system; the method including using a first reservoir for holding the first chemistry and a second reservoir for holding the second chemistry and sequentially delivering the first chemistry and the second chemistry from their respective reservoirs (3, 4) to apply multiple alternating layers of each chemistry to at least a portion of the engine, further using a first supply line connected to the first reservoir, a second supply line connected to the second reservoir, a first electric solenoid connected to the first supply line, a second electric solenoid connected to the second supply line, the first and second electric solenoids (36, 37) adapted to supply the first and second chemistry to an induction cleaner nozzle to apply multiple alternating layers of each chemistry to at least a portion of the combustion engine, and a control wire harness running from a microprocessor to the electric solenoids (36, 37) for controlling the electric solenoids (36, 37); the method of using the reservoirs (3, 4) for delivering multiple alternating layers including: - while the engine is running applying a layer of the first chemistry from the first reservoir to at least portions of the induction system for a first period of time, wherein the application during the first period of time constitutes a first chemistry layer; - while the engine is running applying a layer of the second chemistry from the second reservoir to at least portions of the induction system for a second period of time, wherein the application during the second period of time constitutes a second chemistry layer, and wherein the application of the first chemistry layer and the application of the second chemistry layer constitute a cycle; and - while the engine is still running repeating the cycle multiple times to produce multiple chemical layering within the induction system. - while the engine is running applying a layer of the first chemistry from the first reservoir to at least portions of the induction system for a first period of time, wherein the application during the first period of time constitutes a first chemistry layer; - while the engine is running applying a layer of the second chemistry from the second reservoir to at least portions of the induction system for a second period of time, wherein the application during the second period of time constitutes a second chemistry layer, and wherein the application of the first chemistry layer and the application of the second chemistry layer constitute a cycle; and - while the engine is still running repeating the cycle multiple times to produce multiple chemical layering within the induction system.