Hello every one
I was on the water today, and maximum boat speed 35 mph (1986 18 feet bayliner capri and 1987 merc force 85 hp outboard motor) . It is ok? tachometer show 2500 rpm, I thinks is wrong, because rpm going up, but tachometer still show my 2500 rpm. On the back side of the tachometer small switch with digits, what is it? Before was force 125 hp engine, I change motor, but nothing did with the tachometer. On what digit switch should by?
I hit the ground 2 times and broke propeller. Now I need new propeller but I do not understand how read propeller size, somebody could explain? for example propeller size is 13-1/2"- 17"- 15 what is it?
After that (hit the ground) the engine began to overheat, i have telltale, watter goes through, what could be wrong? If i had sand in the cylinder head water do not go out from telltale? I have steam all time from 2 holes, but overheat sensor ringing only today, one time. (maybe it is smoke i dont know)
If I remove telltale, motor will be colder? Can I run the engine without thermostat?
Thanks for answers