1986 45 hp merc/mariner overheat alarm?

[shrimpman123]

getting an alarm after new impeller install,peeing ok. alarm sounds while running,while peeing,also recent carb job ,will too lean cause an overheat?carbs set at 1 and a quarter out from light seat on needle screw.maybe just a little under 1-1/4 turns on both top and bottom carb.should i check stat first? any ideas guys?

 

[aussieflash]

Re: 1986 45 hp merc/mariner overheat alarm?

Check heads with a heat gun while running to see if its actually a problem or just a sensor issue.
Yes lean condition can cause overheat....less lube.

 

[shrimpman123]

Re: 1986 45 hp merc/mariner overheat alarm?

will do that asap.just for a refresher... screwing in the adjustment screw means less air and more fuel thus richer?