| 摘要 |
<p>A carburetor has a fast idle cam with at least two steps being progressively engagable by a throttle stop or abutment secured to the throttle shaft when the choke valve is closed; a lost motion linkage connecting the choke valve and fast idle cam permitting this action to provide for a cold engine start at the coldest fast idle cam setting with the throttle valve idle speed setting at the greatest opening, and a second cold start at a fast idle cam setting intermediate the coldest and a warm setting, to permit the throttle valve to be located in a less open idle speed setting but greater than the normal warm engine setting.</p> |
