Please don't jump all over me for this, but I'm looking to tear down my '96 Ultra after this winter and put the motor in a gokart. I would like some info on how you guys think the stock coolant system would work during those hot summer days. Do you think I could get away with adding a small radiator, no fan? Or is that necessary at all? My plans are to find an 800 XCR for next winter. Thanks.