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Discussion Starter #1
Hellow,

At what temperature should the ventilaton start ?

Is it ok if the cooling liquid is over max level?

I might have some problems, the temperarure was at 106 C and the ventilator was still off.

Could enybody help me?


Thanks,


GEO
 

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too much isn't a big problem as long as your overflow bottle isn't completely full. you can always just drain some out of there.

when you say ventilator do you mean the fan? the fan should come on around 102°C.
 

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Discussion Starter #5
No I've never seen the fan mooving!

I just bought the bike and now I'am testing it.

How can I test the cooling sistem to see if it works, without ruining the bike.

It got to 106 C in no motion.

106 C I belive is enough to make the fan start.
 

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106 C is about 222 F, my fan doesnt start til it gets to be around 226. Is your bike just sitting idling and getting that hot, or are you out riding hard, then letting it sit and rise in temp?
 

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106 C is about 222 F, my fan doesnt start til it gets to be around 226. Is your bike just sitting idling and getting that hot, or are you out riding hard, then letting it sit and rise in temp?

that's weird, it should come on around 217°F (102°C).





MGED try letting the bike heat up until it goes over 110°C. it won't hurt the bike. if the fan doesn't come on by then you know there's a problem with the fan.
 

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Yeah, the guy I bought it from initially said it'll turn on at 232, which I thought was too high, so this summer, I rode it hard when it was like 93 degrees, and just pulled over and let it rise, it went to 224-226 and then turned on
 

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Remove the fan connector and test for voltage when the temperature rises... Does the fan blades rotate freely?

I believe there is a fuse for the fan, where it is I don't know (a Haynes manual would sort that)
 

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I have tested for it, seems fine, shows as 12.2 V, i replaced the main 5 or so 10A fuses the other day, not sure if I've found the fan one. Ill take a look this weekend.
 

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Easy way to test if the fan fuse is good, take the wire that goes from the fan, to the switch that is hooked to the front of the radiator un-hook it from the radiator switch and just hook the end that was on the radiator switch to a ground. Thats all that turns a fan on a 929 is. The switch on the radiator reaches a certain temp and it grounds the fan. Mabey you need a new switch that will ground the fan at the right temperature..
 

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If the fan is commin on at any temp then you know that the fan motor is good. If it is comming on to late then you know that the switch/sensor is bad. Mine went bad a few weeks a ago and I think I paid 50 bucks for a new switch and seal. If you realy want to test the switch then you have to pull it out and stick it in coolant on the stove. Have a thermometer in the coolant and a ohm meter on the conection and case. Then you will find out when it is opening and closing. Bottom line is the switch is the issue so there is no sense in going through all that unless you have that much free time.
 

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Discussion Starter #13
It looks that the swich was bad!

I unscrewed the swich from the radiator, which was so stuck that ruined the hole (the thread).

Incredible fragile, the thread was so thin, considering that is a radiator ( A bit disappointed at HONDA'S!).

However I managed to weld a pice of aluminium on the top of the hole and make a new thread. Obviously thicker!
A much better job than Honda!
I am sure this one will last!


Thanks!
 

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I had the same issue this morning, I decided to test out the bike on streets with traffic I usually keep the temp at 180 and below but on the crowded city streets I was some were around 200 and no fan came on! I read the threads above an grounded the fan and it works fine , so i coming to the conclusion that my fan switch is bad, Is there a replacement that will allow me to keep the temp a 180-190?
 

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I was some were around 200 and no fan came on! I read the threads above an grounded the fan and it works fine , so i coming to the conclusion that my fan switch is bad, Is there a replacement that will allow me to keep the temp a 180-190?
I may be missing something but you did read above that the fans don't come on until well above 200F...
 

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Thats my point now I road my bike and them let idle (with all my lil guys as witness) two 218 NO FAN!.

Akrapolvich exhaust, K'N as far as I no and no O2 sensor(and no BLINKING Lights on dash), looking for that, but no smoke but hella power!
 

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I think 218 or beyond is getting to hot on the street, maybe not, let know whats up!
The engine is designed to operate within a specific temperature range.
218 is still within that range. Let it get hotter and if the fan hasn't come on by about 230 then you need to find out why.
 
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