You can save a few steps and not have to drain the coolant. Just undo the 2 frame mounts and the upper radiator hose only (leaving bottom hoses intact) and then you can swivel the radiator sideways (carefully to not spill any coolant,might need to stuff towel in upper hose to prevent dripping) which will give access to the back side fan mount holes. Its easiest to go from the left side of the bike with an extension to reach through the frame to get to the back side of the fan mount bolts, or swivel radiator in front of frame to get access there. Much quicker, several less steps and saves the coolant.
Pandas Man - There are indeed many ways to skin a cat. I personally much prefer doing tasks like this on the bench, even if it takes a couple of minutes longer. In this case we needed to remove the radiator anyway, to straighten it. Always interesting to hear how other people do things though...
Awesome just installed my fan and you saved me from draining my coolant! I topped it off with some pentonsin silicate free (pink) 50:50 with distilled water. 1.5 liter concentrated from advance auto is 15$. Much cheaper alternative to the the motorex m3.0 and it is the same stuff.
great vid. After installing a fan, I had battery issues when doing hard enduro. Another mod that goes well with fan is a trail tech high output stator. Fixed all my issues. The 2017 original stator can't keep up with the fan and numerous starts.
Yes, I also have a TrailTech high output stator on my 2017 now as I sometimes found the stock stator couldn't supply enough current in long slow steep sections where the fan runs continuously. I haven't had an issue since fitting the TrailTech high output stator. In this video I fitted the same stator to a friends 2017 Husky TE300: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3-XbdpPX0KY.html
Straight froward vid. Fitting my mates fans today on TPI model. Will be wiring to the fuse box though as the connector won’t activate the fan on my 2020 model.
For TPI bikes you have two choices regarding fan kits. The first is to fit the KTM fan and connect it to the connection under the tank. This is controlled by the bike’s ECU. Note that the fan relay holder is in the airbox on 2018 & 19 bikes and the relay needs to be purchased and plugged into the holder. On 2020 & 21 bikes the fan relay is under the seat and clearly labeled. The other option is to fit a TrailTech fan kit and connect it to the battery. A battery connection harness with inline fuse is included in the kit. The advantage of the TrailTech kit is it has a temp display (which I like to monitor during cold startup) and you can set the fan on temp.
Any chance you know how to get the ignition solenoid to turn of quickly when the bike is off? My friends bike keeps draining he battery because the fan runs for about 60seconds after engine stops. Has the trail tech.
question! do you need a wire harness for this? i have a 2018 300 xc-w i just got the fan from ktm but no extra wires , the instruction say i need the wires that are not included but in this video i see you already have it on the bike?
No, just plug the power cable in to the connector under the tank and it should work fine. I know that the TPI bikes require an relay to be installed if you want to use the factory connector (and ECU control), but carb bikes are different and the under tank connector should be powered all the time.
Thanks for your videos, I really enjoy them, especially I’m learning a lot from those on bike maintenance and such. Regarding the fan installation, im planning to do one, and was wondering why did you pick the fancy powerparts fan kit over the “standard” oem fan? Cheers.
@@TokyoOffroad thanks for your reply. For my 2018 350 EXCF a cheaper ECU-controlled, no-display fan is available, and I’m oriented to go for that. You don’t think one should instead go for the one you installed here, do you?
@@TokyoOffroad Hi do you know if it's possible to add a digital readout to the existing OEM KTM fan kit that came on my 500 from factory? I'd just like to see the temperature of my bike but don't want to buy an entire new replacement kit with a digital readout if I don't have too.. Thanks!
My kit has that connector what joins to the wire dangling from under the tank but that cable runs up to my seat to and doesnt run to anything, i cant find the relay it goes to to plug the cable in and make it live?
@@TokyoOffroad 2020 Ktm Excf 350 it has 3 relays plugged above the battery already and the cable that connects to the fan is loose under the seat with no relay to plug into, i tested the cable with a circuit tester and that is the one i need.
@@user-jt7gq4fy3o - I'm assuming that you have a KTM fan kit made by TrailTech with the digital display/controller, part number 55735941044. If so it needs to be powered either directly from the battery (KTM sell an optional harness part number 77711979000 which includes a fuse), or another 12V source suitable to power accessories (note the fan will draw just under 3A of current when running). The stock cable under your tank requires a relay to be added (relay needs to be plugged into a relay header located inside the airbox), but if you do this the TrailTech fan supply voltage would be controlled by the ECU, which monitors the engine coolant temp. You can download the installation instructions from KTM here: ktm.com/manuals Enter the KTM/TrailTech fan kit part number (55735941044). The KTM fan kit with no digital display (which plugs into the stock connector and requires a relay added) is 79735941044
Just got a 2019 KTM 300 XC-W TPI 6 Day and I can't find any radiator fans for it. I assume the fans for 17 models will work Also trying to find the right fan to go along with a radiator gaurd/brace What setup do you run? Do you equip any radiator braces?
Do you think there would be any issues installing with aftermarket radiator braces? I have a 18 300xc and it runs a whole lot hotter than my 14 xcw. This is going to be a must.
Some of my friends have installed Bullet Proof Designs radiator guards and the fan kit works fin with those. I personally am using the Trail Tech fan kit (same as the KTM fan kit) with Trail Tech radiator guards and no issues.
The XC model isn't imported to Japan so I don't know if they have an under tank connector. I'd suggest taking the tank off and having a look. But either way it's fine to connect directly the battery it your kit only came with a battery connection harness.
The cylinder head coolant bleed is done on TPIs using the temp sensor. Disconnect the temp sensor electrical connector, then unscrew the temp sensor until coolant starts leaking oout, retighten the temp sensor and reconnect the temp sensor.
Which kit exactly is that? I have a 2 pin connector that is square on the bottom and triangular at the top. All others are round on the top and slightly bigger. Can't see from the pictures whether its triangular or not
Jason Tedesco - It’s not possible to post a picture on RU-vid, so I’ll explain instead. The temp sensor is fully inserted into the radiator. Be sure to use the thermal grease provided in the kit and gently push, or tap the sensor in until it is full seated. At 7:10 in the video you can see.
Thanks. The KTM dealer installed mine with sensor half hanging out. You can see in this picture. photos.app.goo.gl/U9aSDCRUQxDk5ss88 Do you know how difficult is it to remove the thermal compound and reinsert it? The dealer said they couldn't do it without damaging it.
You should be able to carefully pull it out. I'd recommend re-installing it in a different fin next time to reduce the risk of damage. Thermal grease is available online, or PC hardware shop (for CPU installation).
Whether you need a fan kit depends on the type of riding you do. For slow, technical climbs, especially in hotter weather a fan is definitely necessary, but if you don't do that sort of riding it probably isn't. I think that's why the bikes don't come stock with fans fitted, because some people will never boil their bikes over even without a fan...
Do you know if this fan kit will work for the 2017-2018 300XC models. I can’t seem to find a compatible fan for a 2018 300XC but not sure what the difference would be between the XCW and XC and why it wouldn’t work. Thoughts.
The only difference is that you unplug the temp sensor connector and then undo the sensor to bleed air. Then fasten the sensor and plug in the connector again.
Yes, it definitely works with Bulletproof Designs radiator guards as some of my riding buddies are using this combination. I'm not sure about SRT guards, but from looking at a few photos on the web think it should be OK.
Have you guys ever had a issue in the summer on 2t's? Just curious as I'll spend a day doing hill climbs in 2nd in 90 degrees and I've never boiled or steamed or anything.
Yes, most of the guys I ride with who initially didn't fit fan kits have boiled over. If you ride slow, steep, long hill climbs in the summer it'll happen, especially if you're a bigger guy.
The 2018 & 19 KTM TPI models can control the fan using the ECU. Carb models can not. Although even on my 2019 TPI I installed a TrailTech kit with temp sensors in the radiator as I like being able to control the fan on temp myself and also being able to see the temp shown in the display included in the kit.
If you ride flowing, higher speed trails the bike will not overheat, even during mid summer temps. There are plenty of people who do not fit a fan and do not experience boil overs. If however you ride low speed, steep and gnarly trails the bike will overheat and I highly recommend fitting a fan. I think KTM should fit a fan to the SixDays model stock...
I have a 2019 Ktm 300xcw- has anyone out there come across an issue with the Thermostat hose on the bike leaking? My bike has 1.5 hours of run time. Never dropped never crashed brand new- leaking coolant at thermostat housing.. is this a common issue???
Definitely shouldn't be leaking. If it's in warranty and you're close to your dealer have them fix it. Otherwise try tightening the hose clamps a little more.
Thanks for the video. Have you done this with the new TPI versions? The stock wire connector (labeled coolant fan) does not mount to the fan connector as now they are different shapes. It seems like they want a direct connect to the battery now. Really confuses me that the bike still has a plug labeled fan that won’t work. Help me if you can!
Yes, I fitted the Trail Tech version to my 2019 250 EXC TPI. I connected the fan power to the battery (Trail Tech kit includes the necessary cable). The other option is to use the factory connector under the tank and let the bike's ecu control the fan. If you're going to do this you need to fit a relay in the holder in the airbox and it's cheaper to buy a fan kit without the display/temp set/temp sensor. Personally I like to be able to see the current temp on the Trail Tech LCD display (KTM version is the same) and also to have the option to adjust the fan on temperature.
@@TokyoOffroad Great vid as usual!. When you say the ECU controls the fan via a relay in the airbox, then you dont have to set the gauge for the fan to come on, the ECU just comes on at some random temp? I have the wiring kit straight to the battery and it works fine. just courious how the ECU with relay works?
Yes, on the TPI if you use the ECU to control the fan (plug in to the factory connector under the tank and install the a relay in the holder in the airbox) you don't need the gauge, or temp sensor. The bike's ECU controls when the fan switches on and off (no user setting, or adjustment).
TRB GENERAL FLOORING LLC - No, the TPI is a little different. If you want to use a Trail Tech fan kit with temp control unit you can install the temp sensor in the radiator (as shown in this video), but you’ll need to get 12V power directly from the battery (the Trail Tech kits come with a fused cable to do this). On the other hand, if you want to use the factory power connector under the tank, you’ll need to install a relay (located in the airbox). The fan then becomes controlled by the ECU and a radiator temp sensor and external temp controller is not necessary. You do loose the ability to control the on temp and monitor the temp if you do this though. I choose to install a Trail Tech kit and power it directly from the battery as I like to be able to monitor the temp on the control unit display.
@@TokyoOffroad I just installed the KTM Digital Fan Kit to my '19 TPI. It specifically says in the instructions you need the auxiliary wire harness (part #77711979000) to complete the installation. This harness is a simple connector with a fuse and two leads to connect directly to the battery. You could easily make one. They don't say anything about the option to connect it so the ECU controls it. The connector under the tank is even labelled 'cooling fan' but has a slightly different connector. Any idea if it's just as simple as plug and play with that connector? My research has yielded nothing on this topic.
Derek MacNeil - On TPI bikes, if you want to use the connector under the tank you need to fit a relay (located in the air box). The fan will be controlled by the ECU in this case. I prefer using the Trail Tech Kit which has the digital display and allows you to see the temp and set the fan on temp. For this kit you need to connect directly to the battery (harness with fuse is provided in the kit).
If you don't bleed the system air may be be trapped in the cylinder head and the engine will run hotter than normal. Definitely worth bleeding, especially as it only takes a minute to do.
No cylinder head bleeder on the 4T bikes I have worked on. For a minor boil over, particularly if you stop and wait for the bike to cool down and top of the radiator once cool, no damage should occur. However, if the engine overheats severely, a lot of coolant is lost and you carry on riding permanent damage to the engine may occur, including warped head and piston/cylinder damage.
Check that nothing is stopping the fan from rotating. Also check that the inline fuse has not blown. If that's OK check that you have power going to the controller and that the thermal sensor wire has not been damaged. If that's OK the fan/controller/sensor might be broken, in which case if you've only used it for 2 hours I'd recommend discussing with you dealer.
