Noticed that my new to me 90 model has the fan switch mod that I can turn on anytime via the switch. Cruising around in 70 degree temps I noticed the temp starting to climb. Since it is only a gauge needle, I have no idea of actual temps, but don't like the idea of her getting hot on a 70 degree day. Anyone running engine ice in their scooter? Any improvement over the stock coolant?

Maybe a new thermostat and coolant is in her future?

 

How high is it climbing? Mine will typically get up to 3/4 when I'm stuck in traffic but it's fine - fan kicks on and it doesn't over heat. I run Engine Ice too.

 

Never over heated, just climbs sitting still. I don't have a history with the old gal so I'm not sure what is normal.

 

my 1990 goes to 5/8 in traffic in hot weather and the fan kicks on never a problem

my 1993 went to 7/8 in traffic in hot weather and that pissed me off so I put the manual
switch in - since it's my highway commuter most of the time anyhow I don't use the
switch hardly ever but it's there should I have to

my 87 is same as the 1990 - predictable - no issues

Meh suppose I could have easily installed a new lower temp thermo switch in the rad
of the 93 - must do that sometime

 

From the sound of it, I think mine is ok then.

 

unless you ride a 20 mile daily commute at 3mph - I'd say yeah - the bike will
stay cool at anything over 15mph

except for maybe 90 degree plus weather then a good 35mph + will be needed

 

I was thinking about this same situation tonight after being stuck in heavy traffic, two up, and watching the temp gauge get very close to red. Moment I hit the highway it went down to 1/3 and stayed there. Fitting a lower temp switch is one option, but I was thinking along the lines of a higher efficiency fan. Has anyone fiddled with this idea. I'm sure modern fans draw less power and produce more air flow than these ones do.

 

https://cbrforum.com/forum/cbr-1000f...2-003-a-87951/

and if you were to go with the more recent fans - true they are more efficient
but for a hurricane I think you'd need a tandem setup - this I know from messing
with Kawasaki Fans the by product of efficiency is less air being blown

 

Yeah, these bikes are a bit unnerving the first few times you see the needle damn near in the red. You get used to it after like 7 years...... sort-of.

 

I would have thought the later fans would move more air and at the same time draw less current from the battery. Guess I was wrong