40HP Evinrude hole?

gemmam · #1 September 7th, 2003, 11:28 PM

66 Sea King w/ 64 Evinrude 40 hp Lark

I have an open hole (w/ fitting)in exhaust cover on starboard side near the bottom. Another hole is near the top and has a tube going to carb. Question is what goes in botton hole???

Also, where might I find the overheat buzzer/light??? I have found the wire and traced it to the dash.

Thanks

The Marine Doctor · #2 September 8th, 2003, 06:13 AM

Heat is transfered though a pipe from the exhaust to the carb to release the choke. Works the same as a inboard engine.

TMD

gemmam · #3 September 8th, 2003, 06:22 PM

Thanks TMD. I understand. But does the bottom hole just remain open to atmosphere with nothing connected to it and not plugged in any way???

Thanks again.

rodbolt · #4 September 8th, 2003, 06:33 PM

hello

yes the bottom hole allows air in, then the exaust heats the air and intake vacum draws the heated air past a choke coil.the system worked really well for its time but if you desire to tinker with it please get a service manual. read heed and belive.