Home › Forum › Ask A Member › Chasing a lean sneeze; 67 80HP V4 › Re: Chasing a lean sneeze; 67 80HP V4
It looks like the 67 80hps still used the thermostatic choke, with the very confusing electric choke "over ride". This crazy feature actually turns the choke off when the switch is engaged. These engines were designed/wired so the electric choke turns on everytime the key is turned to start, even when warm. So, engaging the choke over ride switch turns the choke off while cranking, to prevent flooding a warm engine. Someone may have disabled this feature, or changed the choke switch to reverse the feature. Yes, very confusing….
And yes, you can adjust the thermal choke warm up spring to help with warm up after cold starts. Like others have said already, trying to run one of these engines in a barrel shows little and creates confusion. I would definitely launch the boat in order to properly evaluate idle quality and cooling system operation…