I just rebuilt my 2002 zr440 sno pro i bought. I purchased it with the heads and cylinders taken off. Its all togther now, but im having trouble with 1 part, the solenoid valve, what two lines hook up to this??? I have one line that runs off the cylinder heads(look like a vent tube??) and a hose that runs to the bottom of the chasie as an over flow on the right side by the muffler. I dont believe these lines hook up to it, Am i wrong?? What is the purpose of this solenoid??