i know this dont belong on the "canes" page but these *icks over on the 900 arent like us 1kF owners they dont help worth the **** so if any of you guys can help on this (yes i still have my 94 1kF and wont ever get rit of her but i bought another bike) id greatly appreciate this check it out here.. thanks again


https://cbrforum.com/m_602772/tm.htm

 

I posted this in the 900 section :
http://blackbears.ru/index_en.php?get=manual
May help you - all the workshop manuals.
Liquid cooled means water and anti-freeze (normally) 50/50 mix

 

As with any motor vehicle, the Temp sensor is what tells the fan to go on or off. It also sends the signal to the Temp gage. I would suspect that either the sensor is faulty or the wiring from it is dropping out. Is there a good contact at the connector?

I also posted in the 900 section.

Edit: This type of problem could also be present with a 1kF, you get a free pass here.

 

There are two separate coolant temp devices on my '93. One in the lower left corner of the radiator, which is the fan on/off switch (SWITCH, THERMOSTAT p/n 37760-MT2-003)and anotheris the thermostat housing(SENDING UNIT p/n 37750-PC1-004) , which sends the coolant temp signal to the guage on the dash.

 

haha thanks for the free pass lol and i know the "on/off" on the radiator but the thermostat housing has a switch or so similar to tat one i didnt know that i just thought it was more like the sensor any ideas on what to do with that?

 

Tallenuf is correct, there are two sensors. One is actually a switch. When the coolant gets hot enough the switch closes and completes a ground and the fan turns on. To test a switch like that, you have to remove it and place the tip in hot water and see if you get continuity across the terminals. This would be the one in the radiator.

The other sensor is the one on the engine. This one would be a variable potentiometer. To check that one you need to check for resistance change as engine temp rises by measuring across the terminals.

Edit: I don't know much about the 900. It may be that the Temp flashes as a warining, 270 is a bit hot. If the fan is not turning on, the engine may be to hot and the Temp gage may flash.

 

well the temp flashes 270 even with the engine cold even before i ride it it just stayes at 270 i started it just a min ago and soon as i turnd the key there we go still at 270 and i wasnt evn on the bike i.e. 900 rr

 

Sounds like the temp sender unit's fried - I would think that 270 would be the max temp reading, and the system goes to a max reading when the switch/sensor shorts out or fails.....?

 

yeah i was thinking that ima have to look at the manual link you sent me and find out which one to take out a check good thing is i have a spare motor at home so maybe those ones are good well see.