2006 450 Sportsman general rebuild

[Okiechoctaw]

I recently scored a 450. The oil was thick as mud coolant looked like milk this thing is ruff most the bushing are bad. I've just changed the oil. I will be adjusting the valves next. Any advice on what I should look over or what wear items I should be replacing besides the typical fluids filters and such. I'm new to atvs. At this point I have no idea when the machine had been serviced last. 

[Otter9099]

I would wonder about the coolant looking like mud. I would change all the fluids and run it a little. If you get milky coolant I would wonder about a  possibly blown head gasket. 

[Okiechoctaw]

Oddly enough the coolant smells like fuel. I've got the oil changed ill have the radiator flushed here shortly. Id hope the head gasket in go shape luckily I haven't lost any oil since changing. I don't know what they put in this radiator. 

[Otter9099]

Maybe its rust and corrosion and just needs a good flush. Chris fix has a great video showing how to do this on a full size vehicle on YouTube. It would be the same process on an ATV. Its just smaller. Here's the video.

 

[Okiechoctaw]

Awesome thank you im going to check this out and see what I can do !