Have had some problems with my 636... leading to head aches... I have tried searching extensively here and online for possible issues... all lead to faulty thermostat..
I've had the bike for about 4 years now, and never had too many problems with over heating.. About two years ago I was planning to take my bike to the track, and swapped out my stock anti-freeze with water + water wetter, now the temps with the anti freeze hovered around 190-200 ish... after the water wetter, they were about 200-212, a smidge hotter but not too bad, always kept itself in check after I started riding.
I had a job in the florida keys for a year and did not ride my bike too much all last year, maybe once every few months, when I came back recently, the bike over heated to 240.. and would never cool down below 212
I flushed the system again with water and water wetter, and the problem still existed, I linked it to a faulty thermostat. I did the maintenance my self and the thermostat seemed fine but replaced it anyway (i had already ordered it
) amid my repair, I broke the thermostat housing
so I finally got the new housing and put it all back together and used engine ice this time, and all seemed well, would goto 212, but fan kicked on and it cooled back down to 200 for the around-town test rides
I went for a ride this weekend to the everglades (45 miles one way) and almost to my destination the bike eventually crept up to 240 again (i was riding ~90mph about 30 miles)
I stopped for gas and let the engine cool in the shade, then i went back home (another 45 miles into head wind) and the damn bike didnt go above ~204.
I was riding in ~88 degree weather, the reason why I think the bike stayed cool on the way back was because of head wind? and as I approached the city the temps which were noticeable cooler than in the everglades...
I have bled the system and followed the user manual on how to properly fill up the coolant, I am going crazy because the bike is still over heating after spending about 120$ trying to fix, I was debating whether or not to remove the thermostat completely but since I put a new one in there it should be functioning fine.. the fan kicks on at 212 as it should,
could it be a faulty sensor? what am I doing wrong? I thought for sure the Engine-Ice would be better than the water-wetter but it seems to be functioning the same...
Sorry for the book, but thought the more descriptive I was the better I'd be able to get an answer... Thanks!!