F4i - Main Forum Main F4i discussion board

Runnin' Hot?

Old 03-21-2011, 02:17 PM
Junior Member
Thread Starter
Join Date: Apr 2010
Posts: 16
Default Runnin' Hot?

Hey all,
First 70 degree day of the season! Finally! Anyway, my bike seems to be runnin' a little hot. Aux fan still kicking in at around 226ish, but when I ride, temp not going down as fast as usual.

Then I stop at a light or something, and the temp shoots up pretty quickly!

Checked the coolant reservoir and it looks pretty bone dry, so I'm assuming I just need to add some.......so, any suggestions on the type of coolant to use? Or, what are you using? Mixture as well? Something about the type that's safe to use on aluminum block, correct?

Thx in advanced!
Old 03-21-2011, 02:40 PM
Ragnar1x's Avatar
Senior Member
Join Date: Sep 2010
Location: Connecticut
Posts: 123

I bet you can use the search function to find this answer. I think Honda makes their own coolant, or maybe they just buy some and put their name on it. I'm not sure exactly. However, if your coolant disappeared over the winter you may want to look for leaks in your system.

You are definitely low on coolant, I wouldn't ride anymore until you put some in.
Old 03-21-2011, 02:42 PM
R Dub's Avatar
October 2011 ROTM
Join Date: Feb 2009
Location: Burbs of Chicago
Posts: 1,340

Your temp seems to be fine. These bikes run pretty hot. My F4i would get to 232-233 and wouldn't flinch. I would think as long as your bike does not get above 240F then your fine.
Old 03-21-2011, 03:24 PM
Xander F4i's Avatar
Senior Member
Join Date: Jul 2010
Location: near Brookville, PA
Posts: 513

you can switch the Thermo-switch out for one off a '93 Nissan Pulsar and drop 15-20 degrees (*F) off your running temps. Though, I would definitely fill the system as well as look for leaks.

Granted, you should have checked your fluids before ever taking the bike out for the first ride of the season. If your coolant had leaked out over winter, it should have been caught in you pre-ride inspection...though, I also realize that with Honda's making reliable bikes, it can be pretty easy to get lazy with doing pre-ride inspections.
Related Topics
Thread Starter
Last Post
galen1st cbr
General Tech
03-12-2011 03:55 PM
06-01-2010 07:54 AM
02-25-2009 09:26 PM
05-21-2006 10:20 PM
Off Topic
10-04-2005 10:44 AM

Thread Tools
Search this Thread
Quick Reply: Runnin' Hot?

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.