[ALEX BERECZKY]

You need to remove both Fan Housings, in order to access the rear of the radiators... as required to disconnect the hoses going to them.

To remove the (FH)Fan Housings:
1) Remove two bolts at both upper corners of both housings.
2) Disconnect the plastic strip, holding the five electrical connectors along the top of both FH's.
3) For the left FH, disconnect the lower end of the Heater Hose for the Carb... pull it up out from beneath the FH, and swing out of the way.
4) For the left FH, detach the Vacuum Accumulator (Black plastic cylinder outside of left radiator) and swing out of the way.
5) Lift the FH upwards (to disconnect the pin on the bottom, from the frame)
6) Pull the FH outwards to the side of the bike... sometimes you'll have to pull quite hard

 

[ALEX BERECZKY]

I was hoping that the Honda manual was correct and that I didn't have to remove the fans and housings to change the thermostat. I'm stuck now where it says I need to "release the radiator boss from the frame rubber hole". I can't get the left radiator to release from this rubber hole. Can I get to the thermostat this way or do I really need to remove the left fan and housing?

The Fan Housing/s need to be lifted slightly (1/2") Upwards, in order for the pin to lift free of the socket in the frame... Once clear, then the fan pulls straight outwards to the side of the bike, which can often take quite a bit of force to get moving.

If you can't lift the fan housing upwards, then be sure that you first: -Removed the plastic clip thingie that holds the 5(?) electrical connectors in place to the housing.
-Removed the two bolts, along the top corners of the housing.
-(Left Side only) Moved the heater hose out of the way, by disconnecting it at from the bottom end.
-(Left side only) Moved the round vacuum canister out of the way