Own an 02 1800. Went to change the antifreeze. Removed the drain plug, nothing, not a drop came out. Removed the rediator cap up top, still nothing. Poured a little water in the top, immediately it filled up and stayed. When I removed the coolant bottle under the bike, it had maybe 8 ozs. in it. I cleaned it out, poured in antifreeze to the top line, and then tried again. No water out of the rediator drain line. Also the bike temp. never goes above the halfway point, so it never overheats. I ride everyday to work 45 miles round trip. Any help or suggestions would be appreciated.