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Discussion Starter · #1 ·
So,

I am having issues with overheating on my 2005 Z1000. It started after I put new Danmoto Exhaust on and did the air box mod...

After installation I drove the bike about 40 miles with engine temps running high but not overheating 190 to about 210 degrees.

Then I stopped at a light and temps went to 250 Degrees then overheated.

After reading posts on here and other forums I thought the overheating would be caused by not having a Power Commander. After I installed a power Commander and used a Two Brothers map and a few others the bike still overheats very quickly within 5 min or less????????

I did notice the fan did not kick on even when it was overheating????


So my questions are.. What temp does the fan usaully kick in? What is the average running temps on a 1st gen z1000? And do you guys have any suggestions?

I figure even with a generic map the bike should not overheat.. maybe just run a little hot. Or my fan took a crap and there is no issue other then that....


Thanks for you time its kinda a long read
 

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Mine will run to a max of about 210-212 when I'm sitting at a light, but the fan kicks on after about 30 seconds and takes it back down. While running, I have not noticed it exceeding 150-160 (can't say I am watching it too closely though, could be slightly higher).
 

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Man...when I had an 03, the fan would kick on after about 210*. I never saw 250*, but I remember it getting up there when it was hot outside...240* max.

No fan? Check your fuses first!!
 

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Discussion Starter · #4 ·
Man...when I had an 03, the fan would kick on after about 210*. I never saw 250*, but I remember it getting up there when it was hot outside...240* max.

No fan? Check your fuses first!!
Ok I will check the fuses... thanks
 

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The fan not comming on is definitely the issue of it overheating.

Yes, the exhaust and airbox mod will lean it out and cause it to run a warmer, but definitely not enough to make it overheat or reach those temps.

I'm actually having the same issue as you are. Recently within the past two rides, I noticed the fan on my '05 not comming on either. If I was to sit at a traffic light for more than a couple of minutes, the temp would just keep going up and up until which point it flashed high high high, so I'd shut it off. The fan would always kick on at 212 degrees and once it did, the temp would go down below 200. It will also stay on for a bit after the bike is shut off as well, if it's warm enough.

I'm going to try and check it out this weekend to see what's up if I have time. I did some winter mods and maintenance to the bike over the past winter, so I'm guessing that I must have bumped or jarred something loose when I was doing the plugs. Either that or a corroded connection. It doesn't have very many miles on it so I'd be surprised if the switch or fan motor was bad, but who knows. Let me know what you find out on yours and I will do the same.
 

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Discussion Starter · #6 ·
The fan comming on is definitely the issue of it overheating.

Yes, the exhaust and airbox mod will lean it out and cause it to run a warmer hotter, but definitely not enough to make it overheat or reach those temps.

I'm actually having the same issue as you are. Recently within the past two rides, I noticed the fan on my '05 not comming on either. If I was to sit at a traffic light for more than a couple of minutes, the temp would just keep going up and up until which point it flashed high high high, so I'd shut it off. The fan would always kick on at 212 degrees and once it did, the temp would go down below 200. It will also stay on for a bit after the bike is shut off as well, if it's warm enough.

I'm going to try and check it out this weekend to see what's up if I have time. I did some winter mods and maintenance to the bike over the past winter, so I'm guessing that I must have bumped or jarred something loose when I was doing the plugs. Either that or a corroded connection. It doesn't have very many miles on it so I'd be surprised if the switch or fan motor was bad, but who knows. Let me know what you find out on yours and I will do the same.
Sounds Good.. Im going to look at it Tmmr night.. Im hoping its just a fuse.... Ill keep updating

Thanks
 

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Okay,

so this got me ambitious and I had to go out and take a look.

First things first, I pulled the fuse box cover and yup, there is a blown fuse. I don't have a diagram of what fuse goes to what, but being that everything else works fine on the bike, chances are, that's the problem. I checked and I don't happen to have any 10amp fuses, so I'll have to go tomorrow to pick up a couple new ones.

This is where the fuse is located, fyi. Now I'll be very interested to hear if your's does!



Sorry for the blurryness.
 

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Discussion Starter · #8 ·
Okay,

so this got me ambitious and I had to go out and take a look.

First things first, I pulled the fuse box cover and yup, there is a blown fuse. I don't have a diagram of what fuse goes to what, but being that everything else works fine on the bike chances are, that's the problem. I checked and I don't happen to have any 10amp fuses, so I'll have to go tomorrow to pick up a couple new ones.

This is where the fuse is located, fyi. Now I'll be very interested to hear if your's does!



Sorry for the blurryness.
Nice,,,

I hope that is all that is wrong with mine... Domb question: How do you no if a fuse id blown??? Darker then the others?
 

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Nice,,,

I hope that is all that is wrong with mine... Domb question: How do you no if a fuse id blown??? Darker then the others?
Nah, not a dumb question.

Normally they will be either discolored (darker) and or simply have a break in the contact wire like the one on mine did seen below.

 

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Discussion Starter · #10 ·
Thanks again
 

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if the thermostat is stuck closed the fan senser will not send a signal to the fan. start the bike cold. the thermostat opens around 140-145 deg. if it is working properly you will see the temp go from around 145 then drop when the thermostat opens for a short time . if it never drops at around 145 deg it just keeps going right up you have a stuck thermostat. i am 100% sure.
 

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Discussion Starter · #12 ·
if the thermostat is stuck closed the fan senser will not send a signal to the fan. start the bike cold. the thermostat opens around 140-145 deg. if it is working properly you will see the temp go from around 145 then drop when the thermostat opens for a short time . if it never drops at around 145 deg it just keeps going right up you have a stuck thermostat. i am 100% sure.
Thanks Man... Were is the thermostate located??????? Must be near the radiator somewere right???
 

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if the thermostat is stuck closed the fan senser will not send a signal to the fan. start the bike cold. the thermostat opens around 140-145 deg. if it is working properly you will see the temp go from around 145 then drop when the thermostat opens for a short time . if it never drops at around 145 deg it just keeps going right up you have a stuck thermostat. i am 100% sure.
Thanks for the suggestion.

I just went out, installed the new fuse and fired it up. The temp rose to 143, then went down to 128, hovered for a few seconds there until which point it began to rise again and let it climb all the way up to 220, but the fan did not come on. Does this sound similiar to what your's does temp wise when it's warming up, notabiker? I can't honestly remember now what the temps were doing when it was warming up and the fan worked.

I'm wondering now if it's the switch which could probably explain the cause of the blown fuse in the first place.
 

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Discussion Starter · #15 ·
Ok.....

So I checked the fuse it is fine no issue...

Then i checked the fan it runs when i put 12v to it.....

So it has to be a stuck thermostat right or is there another switch or something?????
 

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if the temp dips like it did around 145 the t stat is working properly.if the fan is not coming on does the temp stay steady above say 45 mph ?. the fan system is only needed at slow speeds. if the bike gets over 190 deg at FWY speeds you have a unknown problem. i think the fan switch is in the left side of the radiator. take a electrical test light and ground the aligater clip .with the bike runing you should have elec power to one side of the switch. at around 215 Deg the other side of the switch should have elec power off the other terminal.

if the bike gets hot above 45 mph you may have a thermostat that is only opening part of the way [ this is a long shot]. if the radiator is in normal cond and the cooling system is full of coolant the bike should not overheat at freeway speeds even on a hot day. feel the radiator with your hand. the radiator should be too hot to touch if the engine is at operating temp and the coolant is properly flowing threw the radiator. if the fan does not come on after 215 Deg and the elec power is getting to the fan motor try tapping on the fan motor lightly with something to jar the motor. if the motor starts working after you tap on it the motor is bad. i think the thermostat is under the fuel tank under the coolant cap [ it looks like a car radiator cap but small.
 

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Discussion Starter · #17 ·
Thanks for the suggestion.

I just went out, installed the new fuse and fired it up. The temp rose to 143, then went down to 128, hovered for a few seconds there until which point it began to rise again and let it climb all the way up to 220, but the fan did not come on. Does this sound similiar to what your's does temp wise when it's warming up, notabiker? I can't honestly remember now what the temps were doing when it was warming up and the fan worked.

I'm wondering now if it's the switch which could probably explain the cause of the blown fuse in the first place.

This Switch you two are talking about.. I have no clue what that is :screwy:
 

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Discussion Starter · #18 ·
if the temp dips like it did around 145 the t stat is working properly.if the fan is not coming on does the temp stay steady above say 45 mph ?. the fan system is only needed at slow speeds. if the bike gets over 190 deg at FWY speeds you have a unknown problem. i think the fan switch is in the left side of the radiator. take a electrical test light and ground the aligater clip .with the bike runing you should have elec power to one side of the switch. at around 215 Deg the other side of the switch should have elec power off the other terminal.

if the bike gets hot above 45 mph you may have a thermostat that is only opening part of the way [ this is a long shot]. if the radiator is in normal cond and the cooling system is full of coolant the bike should not overheat at freeway speeds even on a hot day. feel the radiator with your hand. the radiator should be too hot to touch if the engine is at operating temp and the coolant is properly flowing threw the radiator. if the fan does not come on after 215 Deg and the elec power is getting to the fan motor try tapping on the fan motor lightly with something to jar the motor. if the motor starts working after you tap on it the motor is bad. i think the thermostat is under the fuel tank under the coolant cap [ it looks like a car radiator cap but small.

Thanks
 

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if the temp dips like it did around 145 the t stat is working properly.if the fan is not coming on does the temp stay steady above say 45 mph ?. the fan system is only needed at slow speeds. if the bike gets over 190 deg at FWY speeds you have a unknown problem. i think the fan switch is in the left side of the radiator. take a electrical test light and ground the aligater clip .with the bike runing you should have elec power to one side of the switch. at around 215 Deg the other side of the switch should have elec power off the other terminal.

if the bike gets hot above 45 mph you may have a thermostat that is only opening part of the way [ this is a long shot]. if the radiator is in normal cond and the cooling system is full of coolant the bike should not overheat at freeway speeds even on a hot day. feel the radiator with your hand. the radiator should be too hot to touch if the engine is at operating temp and the coolant is properly flowing threw the radiator. if the fan does not come on after 215 Deg and the elec power is getting to the fan motor try tapping on the fan motor lightly with something to jar the motor. if the motor starts working after you tap on it the motor is bad. i think the thermostat is under the fuel tank under the coolant cap [ it looks like a car radiator cap but small.
Thanks for the info.

Yeah, riding the bike is fine, it runs at normal temp. It is only when you sit in traffic for a while that the temp rises to the point where the fan should be comming on to kick the temp back down.

I'll have to do a little digging and test the motor and switch.

Thanks again.
 

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Okay,

now we're talking basics among basics here and you will truely not believe this.

I decided that it would probably be a good idea to spin the fan over by hand just make 100% sure that nothing was in there blocking it from turning right?? Should have done that in the first place. Well, after reaching in there and attempting to spin it, the blades immediately hit something and you could not turn it any further. As I said, you will not believe this. There was a rock obstructing it!!! I kid you not. After wedging it out finally, fired the bike up, let it reach 210 and boom, the fan kicked on! Yes!

Now that would explain the blown fuse.
 
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