coolant

  1. B

    Need Help High Coolant temperature warning

    Hello all, I have searched numerous forum posts on this issue on this issue and others and cannot seem to find a definitive answer on the problem. I keep getting a high coolant warning which seems to be a sporadic electrical fault. When it first happened, the bike had only done 2 laps before...
  2. N

    2015 ktm rc390

    Runs great no problems with it. ~7350 miles this is a commuter bike and has never been tracked or raced. LED headlights t rex frame sliders and engine guards all around comfort seat rear peg block off plates adjustable levers brand new diablo rosso 3 tires no performance modifications so as to...
  3. Falkon45

    Coolant consumption

    Hey guys, I'm wondering if anyone else is noticing coolant consumption, but no signs of BHG. My bike has never ran hot, but I have to refill my coolant reservoir every couple weeks.
  4. M

    My Terrible Experience with my RC 390 and KTM USA

    Hello all. I have been searching this forum for the past couple years prior to the purchase of my RC390. I searched long and hard before finally settling on my bike, as it was truly the only thing in this category that interested me. This thread is meant to document the story of my bike and the...
  5. F

    RC 390 won’t start

    I have a 15 390 cup bike that after losing coolant won’t start. The coolant bottle broke at the nipple and pissed coolant all over me, I noticed and pulled off the track but the bike died coming into the pits. I think it shut off because of temperature, it was 2 bars below hot. I have a...
  6. M

    I put oil in coolant tank

    Ok this is super embarrassing, but I thought I needed to add coolant, because when looking at reservoir, it looked empty. I quickly grabbed a quart I had on the bench, thinking it was coolant, because I remember buying some and I thought that's where I set it. Very dumb, yes I did not even...
  7. D

    Coolant color

    First time posting... love my 2017 RC (I have to wear a dark face shield just to cover the silly grin on my face!). Aside from the fact she loves to run hot (5000 kms, never overheated yet), I was about to add water wetter and top up the coolant when I noticed that my factory coolant is green...
  8. S

    Evans water-less coolant

    I have found a couple of guys here that say they were going to try the Evans water-less coolant but there hasn't been any follow up. If you are using it how is it working out? My 2017 consistently runs at the top bar of the lower section. At one point on a ride running the bike hard I had a...
  9. M

    How to avoid head gasket problems (new rider needing help)

    So from what I understand (which mind you, is not much) a seemingly common problem is a blown head gasket and it seems like it's caused by overheating. I bought a new 2017 rc390 a few days ago (my first bike and I'm loving it!) and I have noticed that the fan has to kick in pretty quick...
  10. K

    KTM overheatings and shuts down

    Dear RC390 riders, I have bought me an RC390 with overheating issues. I have read all known issues but mine are different. My has trouble starting. If it starts after 10 seconds it will be so hot in like 1,5 miles that it shuts itself down. It says that the coolant is too hot. My KTM is...
  11. rudra2k14

    Rc390 not starting. need serious help!

    Help needed from expert. Suddenly my Rc390 refuses to start. When I’m turning on the key there is no sound of fuel injector nor the engine/self start is cranking. Horn/indicators/dipper light working fine. Display showing low fuel and hi coolant temperature though there is enough fuel and the...
  12. N

    Question about swapping out LED's for headlights

    I'm not sure where to post this so I will try here too: Hi everyone! I recently purchased a used 2015 rc390 with only 1400miles on the clock (previous owner was a 75yr old)! When swapping out the stock bulbs for some LED's, I noticed some clearance issues with a little tube just to the side of...
  13. R

    rc 390 stock coolant and color

    hi guyz my brother have rc390 2017 but hes away so im the one use hes motorcyle now the problem is coolant is now at min so i nid to buy stock coolant for hes rc390.and i search in internt for stock colant for rc390 cant find it and other rc 390 users coolant color is dfrnt its kinda apple...
  14. M

    Exhaust header leak & other questions

    Okay, so I don't know how to edit headings - it's not an exhaust leak. It was coming from the valve cover bolt and just collecting grime. My forward left cover threads are completely stripped out, I was thinking this was an exhaust leak because of the black soot but when I looked at the exhaust...
  15. Buildable

    Leaking Badly From Air Box

    Well i'm back with another problem... I got my bike back from my mechanic a few days ago and had a ton of work done on the bike. Including rocker cover gasket and a general service. When I pulled up at home after a totally normal ride the bike started to spew out a ice-coffee coloured liquid...
  16. M

    Lots of Random questions

    It's just one little thing after the next, nothing major, but i want to get it all out of the way. I'm trying to take one weekend to throw some time, money and parts at it (maybe some wrenches too, out of frustration) and knock everything out at once. Figured i would get some input from you guys...
  17. E

    Help! Random nut appeared

    Hello, While taking apart the bodywork this small golden nut thing fell out. Is it supposed to connect the coolant overflow tube (?) to the engine? Doesnt make sence to me, but it fits perfectly both ends for it. Yes, sorry for the dumb question, not a mechanic :) EDIT: the...
  18. M

    HELP! Weird smell then smoke from near catalytic converter

    So today while riding, I noticed a weird smell. (smells like rubber to me) Then I went riding about an hour later. 30 min into ride, I stopped at a gas station. A good bit of smoke was coming from down by the cat... Another thing is: I change my oil yesterday (No, the smoke is NOT oil burning)...
  19. CAZHEREDIA

    KTM RC 390 Coolant Reservoir Bottle Tank OEM

    Anyone selling or know where I can buy the coolant reservoir cheap?
  20. helpbago

    2015 rc-390 *pita*

    Alright, so first off, this is mine and my wife's opinion on this, second, I love this bike in terms of power and getting through traffic. Now well comes the sad part and I want anyone and everyones input on this. So, we got the bike back in April of '16, with a one year warranty from factory...
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