CHAPTER ONE
INTRODUCTION
PREAMBLE
    The cost of gasoline and the negative effect of it which usually result in the emission of carbon monoxide that had killing many through the inhalation of poisonous gas this led to technological research that brought about the design and fabrication of generators gas conversion kit which is also referred to as A 85 C and type and type I thought 4 conversion kit is used to convert a generating set to run on gas and eliminate completely the  poisonous and delay carbon monoxide produced by gasoline generating set [fort smith 2011] natural gad conversion kit unpublished.
    Carbon monoxide poisoning occurs after enough inhalation of carbon monoxide (co). Carbon monoxide a toxic gas, but being colourless odorless, tasteless and initially nonirritating, it is very difficult for people to detect, it is a product of incomplete combustion of organic matter due to insufficient oxygen supply to enable complete oxidation to carbon dioxide (CO2). It is often produced in domestic or industrial setting by motor vehicle and other gasoline powered tools heater generating set and cooking equipment [Theodore Banzhaf 1993] (inventory in energy and heat removal technology).
    Over the last few year more and more outdoor appliance have shown up that are gas powered patio heater gas fire place including generating set power by propane and compressed natural gas (co).
    General conversion kit is a new technology design by different research all over the world to enable different  type of generating set to be  powered by propane gas and compressive natural gas (CNG) at a cheaper rate and also free from emission of carbon monoxide that are very dangerous to human health (forth smith) 2011. (Natural Gas Conversion Kit).     
According to Danbury (fuel cell energy inc) natural gas has many benefit, first all depending on where you live, it can be much cheaper as much as a third price of propane for each BTU since natural gas has the power of propane it can actually a sixth a much or less than propane per volume but natural burns which cleaner than propane gas.
General Definition and Development
    Air cleaner pressure effect caused by the restrictive action of the air cleaner element. The effect will increase as the element becomes dirty and can cause rich mixture and good operation.
Balance Tube
    This compensates for excessive air cleaner pressure drop or a positive pressure created by an intake blower, a tube is run between the atmospheric vent on the fuel controller and the intake manifold ahead to the carburetor.
Carburetor Adapter
    A venture section place between the gasoline carburetor and air cleaner that will alow the gasoline carburetor to intake so the engine can be run on gasoline or gasoline fuels.
Choke
    A variable restriction in the air intake to increase the pressure drop (vacuum) in the carburetor.
Economizer
    A device to create a learner mixture during part load operation where a richer mixture is designed art full load.
Excess Flow Value
    A safety device generally located at a pressurized fuel tank which restrict or shuts off the fuel flow of the discharge exceeds a certain figure in the event of a line rupture.