I have a 2005 Tracker 175 and the areator isn't working. I checked the fuse and it's good. It's driving me crazy with there being so little room to get to the areator to check it. I have removed the battery and this gives me just enoungh room to reach it. The areator is a Mayfair model. By researching this model, I found that supposedly the motor can be removed while leaving the casing in place by lifting the black lever on the side and twisting the top. Seemed like a good design until I tried to flip the plastic lever and it broke off in my hand. This must lock the top on because I can't get it to twist off. The only thing that I know to do at this point is to replace the unit, but there just doesn't seem to be enough room to do this without removing the gas tank. I just can't believe working on or replacing an areator can be this hard. Any ideas or suggestions would be appreciated.