Thank you I just connected my Trail Tech to factory wiring and it did not work. I will now able to get some sleep tonight and deal with it tomorrow after work. Also I filled the outer exposed wiring parts of connectors with silicone then wrap the connector with Super 33 vinyl tape. thank you
Very slick, Mark! Another idea is what I use, the Trailtech fan wired directly to the battery, I control when it comes on by my settings through the Trailtech fan system (like you), but I've placed a on/off toggle switch between so I can keep the fan from running and not draining the battery. For the temp gauge, I took the one off the Trail tech fan area and installed it on my upper fin of the radiator shroud and, I installed a Trailtech Voyager Pro on the front bar mount. The Voyager Pro allows me to see engine temp, speed, altitude, maps, battery volts, etc. - I feel this is the Cat's Meow! When in a race and don't need the Trailtech Voyager Pro, I leave it in the shop, but I can still see my smaller Trailtech fan temp gauge clearly on the upper fin of the shroud at all times and don't have to look down where the fan is. Having said that, what you've done is you've attached the fan to a solid state can bus system on the bike and you don't blow a fuse...you might trip the single system if mud were to pack up in your fan, but as soon as you remove the problem your fan would come back on? Correct me if I'm wrong but If I'm correct that is slick as heck! Your vids are top notch mate.
Yes, that's right, there are now no fuses to blow. If the fan were to trip the solid state OCU it will recover once the fault is removed. An example I can think of is if a stick were to get stuck in the fan. Remove the stick and power should be restored to the fan. Note that I haven't tested what the current limits of the OCU circuits are yet. I have been thinking that it would be a good test to do and am planning to do it. Would be nice if there was a published spec regarding this...
I put the trail tech on my 23 tpi as I wanted to see temps during warm up. It works well but I do get tired of leaning over to read the temp display, and being connected directly to the battery it does run after shutting off, though it hasn’t caused my battery to run down so far. If I were to to this again I would get fan that is controlled by the ecu without the display and add a separate trail tech TTO temp guage. If you trust the ktm ecu to set fan temps, using the separate TTO allows for the display to be up on the bars where it is easy read and makes the fan installation a simple plug in. In the U.S. it’s also less expensive for both the separate fan ($130) and TTO ( $60), than for the all in one fan/temp model ($250).
I'm usually on board with all your mods and adjustments. With this one....I don't know that the juice is worth the squeeze here just to see the temp. Cool mod though none the less!
Yes, if I didn't value the temp display on the TrailTech fan (purchased as a KTM PowerParts accessory) I'd go with the factory fan. As mentioned in the video, the key value for me regarding the temp display is being able to se the temp during cold start warm-up. I typically wait until the temp is 50C before starting to ride. BTW the display can also be set to F. Another handy thing is it makes checking whether the fan is working very easy. If the displayed temp is higher than your ON set point the fan should be spinning. I set mine to 95C on temp as shown in the video. The factory fan has no display so makes it more difficult to determine whether it's working on not. Anyway, it's good to have options.
Great video! Had a couple of questions Isn't it better to place the temperature sensor fin on the right radiator since the coolant moves from left to right? Or does it not matter? Also if the non pro 2024 ktm/husq bikes already have a temp sensor in it, is there really no way to display the temp from there?
hi, i have a fin temp gauge that is working correctly, at which temperature do you think that the motor is warmed up and ready for WOT ???? I can't find this info on the ktm exc 250 manual
I think 50degC (about 120degF) is a good temp to aim for before starting to ride. Initial riding go a little easy on the throttle, then progressively open more. If the bike isn't warm enough it'll bog and let you know it needs a bit more time to warm up...
@@teambft1 I just checked the XC-W wiring diagram. One option is you could run it off the light switch power wire (yellow wire going to the light switch)
Or figure out which is the unused pin on the OCU connector for the horn and brake circuit and use that (would probably need to install a terminal and wire into the connector). Easiest though would be to use the light switch power yellow wire as mentioned above, assuming the current overload is sufficiently high to not trip when the fan comes on...
There is no fan relay on a 2024 XCW. If you have a KTM factory fan plug it into the connector under the tank. It will be controlled by the ECU, via the OCU
The TrailTech fan I'm using on my 2024 KTM 300 EXC TBI I purchased from KTM, part number A49035941044. The fitment is listed as 2024 model only, or 2023-24 XC. I have not compared it to the 2023 TPI model so don't know what's different.
Like I said if you just purchased the tap that Taco Moto makes your fan would only run when the bike was running and you still would be to the battery. I don’t understand why you’re messing around here.
As discussed in the video I wanted to run the fan off the OCU as there are no fuses to blow. IMO that's a big improvement. If for example a stick gets stuck in the fan, if you're using a battery direct connection with in-line fuse, the fuse may well blow, requiring replacement.
Thank you I just connected my Trail Tech to factory wiring and it did not work. I will now able to get some sleep tonight and deal with it tomorrow after work. Also I filled the outer exposed wiring parts of connectors with silicone then wrap the connector with Super 33 vinyl tape. thank you
Very slick, Mark! Another idea is what I use, the Trailtech fan wired directly to the battery, I control when it comes on by my settings through the Trailtech fan system (like you), but I've placed a on/off toggle switch between so I can keep the fan from running and not draining the battery. For the temp gauge, I took the one off the Trail tech fan area and installed it on my upper fin of the radiator shroud and, I installed a Trailtech Voyager Pro on the front bar mount. The Voyager Pro allows me to see engine temp, speed, altitude, maps, battery volts, etc. - I feel this is the Cat's Meow! When in a race and don't need the Trailtech Voyager Pro, I leave it in the shop, but I can still see my smaller Trailtech fan temp gauge clearly on the upper fin of the shroud at all times and don't have to look down where the fan is. Having said that, what you've done is you've attached the fan to a solid state can bus system on the bike and you don't blow a fuse...you might trip the single system if mud were to pack up in your fan, but as soon as you remove the problem your fan would come back on? Correct me if I'm wrong but If I'm correct that is slick as heck! Your vids are top notch mate.
Yes, that's right, there are now no fuses to blow. If the fan were to trip the solid state OCU it will recover once the fault is removed. An example I can think of is if a stick were to get stuck in the fan. Remove the stick and power should be restored to the fan. Note that I haven't tested what the current limits of the OCU circuits are yet. I have been thinking that it would be a good test to do and am planning to do it. Would be nice if there was a published spec regarding this...
@@TokyoOffroad Extra cool. That's using the OCU correctly!
Great work mate, enjoying the reviews keep em coming 👍
I put the trail tech on my 23 tpi as I wanted to see temps during warm up. It works well but I do get tired of leaning over to read the temp display, and being connected directly to the battery it does run after shutting off, though it hasn’t caused my battery to run down so far. If I were to to this again I would get fan that is controlled by the ecu without the display and add a separate trail tech TTO temp guage. If you trust the ktm ecu to set fan temps, using the separate TTO allows for the display to be up on the bars where it is easy read and makes the fan installation a simple plug in. In the U.S. it’s also less expensive for both the separate fan ($130) and TTO ( $60), than for the all in one fan/temp model ($250).
That's another good option for sure...
schrrobert, I bet your 23 TPI is awesome!
Another option is to simply touch the radiator. If you can't hold your hand on it for a prolonged period, it's warm enough.
I'm usually on board with all your mods and adjustments. With this one....I don't know that the juice is worth the squeeze here just to see the temp. Cool mod though none the less!
Yes, if I didn't value the temp display on the TrailTech fan (purchased as a KTM PowerParts accessory) I'd go with the factory fan. As mentioned in the video, the key value for me regarding the temp display is being able to se the temp during cold start warm-up. I typically wait until the temp is 50C before starting to ride. BTW the display can also be set to F. Another handy thing is it makes checking whether the fan is working very easy. If the displayed temp is higher than your ON set point the fan should be spinning. I set mine to 95C on temp as shown in the video. The factory fan has no display so makes it more difficult to determine whether it's working on not. Anyway, it's good to have options.
Keep up the Good Work, Enjoying the tech videos & Riding. What’s the pups name
Pleased to hear that you're enjoying the videos. He's Rex and will be 5 months old this week.
Cool mod
Great video! Had a couple of questions
Isn't it better to place the temperature sensor fin on the right radiator since the coolant moves from left to right? Or does it not matter?
Also if the non pro 2024 ktm/husq bikes already have a temp sensor in it, is there really no way to display the temp from there?
What temp is the OCU supposed to turn the fan on? My bike got to 207°f and didnt kick on. 2025 300xcw
hi, i have a fin temp gauge that is working correctly, at which temperature do you think that the motor is warmed up and ready for WOT ???? I can't find this info on the ktm exc 250 manual
I think 50degC (about 120degF) is a good temp to aim for before starting to ride. Initial riding go a little easy on the throttle, then progressively open more. If the bike isn't warm enough it'll bog and let you know it needs a bit more time to warm up...
How can I do this on a 24 300 XCW here in the states. I don’t believe we have the horn plug to utilize
Maybe the taillight plug?
@@teambft1 I just checked the XC-W wiring diagram. One option is you could run it off the light switch power wire (yellow wire going to the light switch)
Thanks bud
Or figure out which is the unused pin on the OCU connector for the horn and brake circuit and use that (would probably need to install a terminal and wire into the connector). Easiest though would be to use the light switch power yellow wire as mentioned above, assuming the current overload is sufficiently high to not trip when the fan comes on...
Where i’m supposed to plug the relay on a 2024 xcw???
There is no fan relay on a 2024 XCW. If you have a KTM factory fan plug it into the connector under the tank. It will be controlled by the ECU, via the OCU
Thank you very much
Hello, does the 2023 trail tech fan fit the 2024 ktm exc? Cheers
The TrailTech fan I'm using on my 2024 KTM 300 EXC TBI I purchased from KTM, part number A49035941044. The fitment is listed as 2024 model only, or 2023-24 XC. I have not compared it to the 2023 TPI model so don't know what's different.
Did you ever find out if the 2023 trail tech fits a 2024 exc?
Like I said if you just purchased the tap that Taco Moto makes your fan would only run when the bike was running and you still would be to the battery. I don’t understand why you’re messing around here.
As discussed in the video I wanted to run the fan off the OCU as there are no fuses to blow. IMO that's a big improvement. If for example a stick gets stuck in the fan, if you're using a battery direct connection with in-line fuse, the fuse may well blow, requiring replacement.
What part are you referring to?