I'm trying to find the winterization procedure for my engine but am having a hard time finding the service manual online. My engine serial # is 1A058892. It is a 4.3L V6 with TKS carb and raw water cooling. Looking up the Mercury parts catalog there are several manuals, is # 8613281 the correct...
I have a merc 4.3 carb with alpha 1, built in 2008 with 140 hours. The temperature gauge shows 160F warmed up at idle and rises to 170F at WOT.. This is how I always remember the boat performing except now I get an over temp alarm intermittently at WOT. The temp sender on my engine is Mercury...