02-28-2011, 06:59 AM
- Super Moderator
- '06 Rocket III Classic
- Join Date: Mar 2006
- Location: Kansas City, MO USA
- 4,927 Posts
After it cools I would see if it sucked any coolant back in from the overflow. I would also pop the cap and check the level in the radiator. Could be that the cap is bad as nox said. If everything looks fine, I would hook up tuneboy, start it up and run the fan test where you can turn it off and on. If it runs, let the bike run until it warms up and see if the fan comes on by itself. Keep tuneboy hooked up and see what the temp coolant is at. I think the fan kicks on around 180-5 degrees?
There is no replacement for displacement.