Overheating.  My Cavalcade seems to run hot, or the fan keeps kicking on.

The Suzuki Cavalcade runs hot, there's no question about it.  It is quite normal for the temperature gauge to show a low operating temperature on the open road.

In traffic or at idle, it's a different story.  The gauge will start moving toward the "hot" side, then the fan will kick on.  This makes most new Cavalcade owners nervous, because they get used to the open road, where the gauge is showing low temperatures, and the fan is not running.

Once you hear the fan kick on, you have a tendency to look at the temperature gauge and see that the bike is running hot.  This is something that is considered to be quite normal with the Cavalcade at low speeds.

Another consideration would be coolant.  Make sure your Cavalcade has the proper mixture of engine coolant AND don't use just any coolant.  Most anti-freeze / coolants are abrasive to the water pump in the Cavalcade.  Be sure to check your owner's manual for the proper coolant, or you could find yourself replacing your water pump very quickly.

In a nutshell, it's normal for the temperatures to run high at low speeds.  Don't be alarmed when the fan turns on.  The fan is your protection against excessive heat and the Cavalcade engine is built to withstand operating temperatures within the range of the gauge.

Bob Ramsey

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

More on Overheating

From: "David Thomas" <dthomas@aristotle.net>
Reply-To: Cavalcade_USA
To: Cavalcade_USA
Subject: Re: [Cavalcade_USA] HEAT& FAN
Date: Sun, 28 May 2000 21:07:07 -0500

Hi Mike,

I had a similar problem with my 86 LXE for several years.  The temp meter would not register much more than pointing at the "C" mark.  Then it suddenly would be about 1/3 up on the scale.  I figured the meter was defective and let it go at that for several years.

I was looking in the shop manual and saw a test for the meter using different resistors to make the meter point to different positions.  I tried this and discovered the meter was close to the values in the shop manual.  I started testing circuits with my Ohm meter and discovered the ground wire that runs from the double water hose connector at the temperature sensor to the left outside bolt that holds the rubber carburetor tube to the head had a bad connection.  I cleaned the connection and the temperature meter has worked ever since.

My fan switch energizes the fan when the temp meter is pointing close to the mark just before the red zone.  When the fan starts the meter will jump a little higher and then hold steady until I obtain some speed.  At normal road speeds the temp meter will point about 1/3 up from the cold mark.  The bike does not boil over so I feel like the meter is reading a little high when the fan energizes.

Hope this is of some value for you.

Ride Safe,

Perryville, Arkansas

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

None of the above seem to apply to your situation?  Read this.

Hello, finally figured it out.  Had to accept that I needed to pull the clutch cover and check the pump.  

The darn pump bearing completely failed, shaft cocked sideways and threw the drive chain!  Talk about unusual.  Drove it at least 200 miles with the chain laying in the case, out of the way, thank God. 

It got hot but never overheated.  The only real indicators, since it's been so hot here, was the fan wouldn't shut off.  When you shut off the engine you could just barely hear some light boiling in the rear cylinder hose.  Never leaked a drop of coolant into the crankcase!  Good boot seal on shaft I guess.


(Webmaster's note:  This message was sent by Paul, who was having a problem with his Cavalcade.  Once the bike would heat up, the fan would run continuously.  He changed the thermostat, coolant and checked everything electrical that would cause the fan to run.  Finally, he found the pump had failed)