Show adjustment OF carburetor modern automatic device Is reliable and accurate too thin mixture causes trouble by HENRY L L THOMPSON department of farm engineering oklahoma A and M college Coll cee nine tenths of nil all the peculiarities of the gas engine are attributed to the carburetor some men have the habit of tinkering with it ill all the time the modem automatic carburetor is a very reliable and accurate machine inachin and when correctly adjusted to meet certain conditions it should operate in a satisfactory mal manner luer most carburetors tors have in an adjustment for low speed and starting and another adjustment for high speeds pe eds too thin a nil mixture ture causes tile the engine to pop and mis while too thick a mixture will cause black at the muffler blue smoke is due to oil first adjust the engine for low speed so that it will start easily and pull strongly then lun iun the motor at it a medium to high speed under same 10 load d and nd adjust tile the air or high speed adjustment in an auto thi this i may bo be done by running the machine up a long rc regular U smile on liall it can make about 25 or 30 miles an hour finding the adjustment which will nill give a certain speed with least throttle in it a tractor the carburetor should always be adjusted under load so that it pulls a given load the easiest casic easl est bt after the proper adjustment lias has been found leave it alone |