Not good. blown headgasket. Looking at 1200 to 1500 to fix.
The Honda 450 foreman 98-04 is air and oil cooled and does not require antifreeze or coolant.
Do you mean flush the oil (not recommended) or flush the coolant?
possibly a blown head gasket
Check if it is consuming coolant or there is oil in the coolant. If either of these is true, you probably have a coolant leak or a bad head gasket, or a crack in your block or head. If not, you probably have a sticking thermostat.
You can use any commercial coolant for automobiles or Honda's own coolant.
B = Change engine oil and filter.5 = Change engine coolant.
I recommend you go to your local Honda dealer and purchase Honda Long Life coolant.
Remove the oil pan drain plug to drain the oil. Remove the lower radiator hose to drain the coolant.
lack of coolant . no cooling fan operation, low engine oil, improper coolant mixture, thermostat stuck, debri on radiator , restriction in cooling system.
Antifreeze and coolant are the same thing.
it is next to where to mount the oil filter. it is either 17mm or 19mm with 58 lb torque
Check to see if coolant is mixing with engine oil. Run engine to normal operating temperature and remove oil dipstick, let a drop of fluid fall onto a hot part of engine, oil will smoke and coolant will sizzle. If coolant is into engine oil could be a sign of a bad head gasket If fluid level is correct, but still overheating, could be: Thermostat is not opening Water pump not circulating coolant Cooling fan not working