Hello,
My name is Bill. I’m not a writer so please forgive me if this seems to be one long sentence.
I have a 2002 Polaris Sportsman 700 Twin I’m working on for a local guy. It starts and idles perfectly, but it bogs out over about half throttle when driving it. The valve cover was leaking so badly right above the exhaust pipes that I was afraid it would catch on fire so before really doing anything, I replace the valve cover with the updated metal one using a new gasket along with new spark plugs.
Here’s where I’m at now. I discovered it was low on antifreeze and put nearly a quart of it in the radiator. After running it for a short time I realized there is oil in the coolant and coolant in the oil. The oil is milky and way over filled so I’m guessing its coolant since the coolant was low. I also noticed water (maybe coolant) in the air box. I used my combustion leak detection fluid gizmo to check for combustion gases in the radiator and found none. I tested the fluid I used per the manual using my breath and the fluid indeed turned yellow as it should. So, I’m inclined to believe the water pump seals are bad and letting oil and coolant mix with each other despite the fact that is no sign of leakage from the water pump weep hole which I pushed a pipe cleaner into in hopes of clearing any blockage that may be keeping it form dripping out of it. I’m I on the right track here? I would appreciate any thoughts or input.
Thanks, Bill
My name is Bill. I’m not a writer so please forgive me if this seems to be one long sentence.
I have a 2002 Polaris Sportsman 700 Twin I’m working on for a local guy. It starts and idles perfectly, but it bogs out over about half throttle when driving it. The valve cover was leaking so badly right above the exhaust pipes that I was afraid it would catch on fire so before really doing anything, I replace the valve cover with the updated metal one using a new gasket along with new spark plugs.
Here’s where I’m at now. I discovered it was low on antifreeze and put nearly a quart of it in the radiator. After running it for a short time I realized there is oil in the coolant and coolant in the oil. The oil is milky and way over filled so I’m guessing its coolant since the coolant was low. I also noticed water (maybe coolant) in the air box. I used my combustion leak detection fluid gizmo to check for combustion gases in the radiator and found none. I tested the fluid I used per the manual using my breath and the fluid indeed turned yellow as it should. So, I’m inclined to believe the water pump seals are bad and letting oil and coolant mix with each other despite the fact that is no sign of leakage from the water pump weep hole which I pushed a pipe cleaner into in hopes of clearing any blockage that may be keeping it form dripping out of it. I’m I on the right track here? I would appreciate any thoughts or input.
Thanks, Bill

