OCR Text |
Show : Motorists Advised to Watch Engine If mixture is thought to be too lean, ', pull up slightly on the "choker" on ': the dash.- This gives a richer mix- ture. If the engine speeds up, it shows too lean a mixture and-low speed ad- , justment should be opened until en- ! . gine runs properly. Of .course, the J1 "choker" should be returned to its usual position. The correct mixture at high engine !; ; speed is determined -by flashing the throttle open to note if engine picks ! ',' up smoothly and evenly. If it back- ', fires it is getting too much air and j. the high speed adjustment must be changed to give it less. ! The road test for correct adjust-! adjust-! ment is to run can a few blocks, . throttle down. Then open throttle ; quickly and car should pick up speed rapidly. The engine should not miss i1 explosions, shown by laboring, jerky action, back-firing at carburetor or S muffler explosions. , Do not attempt to adjust a car- !' buretor by moving the different parts ' at random. If you change an adjust- ; ! ment and no Improvement is shown, , ! put it back. More carburetors are ! thrown out of adjustment by un- ' ' skilled meddling than by road vibra-:l vibra-:l tion. Study your instruction book, con- . : suit experts occasionally, experiment '! carefully, and you will soon be able to keep your carburetor in adjustment to ' give the greatest power to your en- l' ghie. ' |