My 03sportsman 700 is getting coolant in the oil. By reading on here I have ruled out the water pump seal (weep hole is dry) and the head gasket because it never smokes or smells and is completely clean and it runs fine. So is it the lower gasket (between piston housing and crankcase)????? Any thoughts on putting stopleak in radiator and keep changing oil and filter to clean it out?? Any help would be much appreciated!

 

I've had to tear off top ends to replace base gaskets on the 700 before because of coolant contamination. I wouldn't use any sort of stop leak/radiator sealant as you can do more damage. Just order a new head and base gasket and make sure you torque the head bolts to 15 foot pounds initially,back off half turn,torque to 35 foot pounds,then a final 1/4 turn on each head bolt.No lock tite on head bolts,just a thin film of oil. If you don't have a manual, Index of /ORV Manuals/Polaris/Sportsman/2003