Thermostat Replacement 11/26/2004 Updated 4/14/2007

Updated 4/14/2007: Installed a Turbo City replacement thermostat. Hopefully
will last longer than the Honda replacements.

Here's what the stock thermostat looks like. If you're not getting three bars on your
temp gauge you probably need yours replaced. Typical symptoms include reduced
fuel mileage. Mine dropped about 6 to 8 mpg. Mine didn't appear to be stuck
open. I also tested both the new one and the old one and they both appeared to
open and close at the temps they were supposed to. But, after replacement I went
on a test ride and immediately got three bars, even cruising in 38F conditions.

You disconnect this hose to drain the radiator.

Disconnect this hose too. Then remove the radiator.

Here's what you see after removing the radiator. The
thermostat is inside the enclosure in the upper middle
of this picture.

Remove the support and you have free access to the thermostat
housing. No need to remove the throttle bodies.

I found a loose connection and dripping coolant at the three way junction shown here.

Return to ST1300 Farkels page.
Return to Motorcycle  links page.