I have an 1992 year ABS/TCS and I made a total overhaul for that bike few years ago. I bought an engine from ST1100P 2000 and I replaced also the radiator by another used one. I have no clue about the year of the radiator. I also replaced the thermostat with new part. There's a strange combination in my bike, I know, but I didn't have money then for replacing the alternator with new unit, so there's a 29-ampere unit in newer engine if that matters. Anyway, the alternator works well.
But my problem is temperature. My engine runs on lower temperature than ST's usually do. My gf bought an ST1100AP and its engine runs on higher, normal temperature. Newer radiators have different part number than older ones and if I remember correctly that radiator was difficult to install. Like it was taller or something... So I'm asking that are there really differences in radiators between different models? Of course rich mixture and many other things could make the engine run on lower temperatures.
But my problem is temperature. My engine runs on lower temperature than ST's usually do. My gf bought an ST1100AP and its engine runs on higher, normal temperature. Newer radiators have different part number than older ones and if I remember correctly that radiator was difficult to install. Like it was taller or something... So I'm asking that are there really differences in radiators between different models? Of course rich mixture and many other things could make the engine run on lower temperatures.