Can anybody tell me if radiators and hoses varied by year, we bought alloy rad set for the 89 trike and the silicone hoses seem short plus there is a spigot on the bottom of one rad missing(small hose to top of engine block area)
'88-'91 model years had the small coolant by-pass hose attach to the right radiator, later years went direct to front cover of water pump. Bring the new right radiator to a shop and have them install a hose barb same location as original radiator using it as a guide.
The small hose at the bottom connected both radiators together. Not sure on the silicone hoses. I used OEM hoses when I replaced mine. They fit perfect. That was 10 years ago, so I am not sure if OEM hoses are still available.