oil

  1. M

    'Mayonnaise' in breather tubes. Gasket problem?

    Any advice, please? I pulled off the breather pipe from the top of the crankcase and it was lined with white gunk. I shook it out and refitted it. The oil was changed about 2,000 miles ago and it looks OK in the sight glass. The bike usually does 25 miles each journey, mostly on empty roads...
  2. m3hl

    New user from Portland building a track bike! Questions!

    First of all I have been lurking for a while. Great info here. Are there any other forums worth checking out? Seems that it isn't terribly active here. Here is the bike: 2016 2020 miles PO skipped the first service but changed the oil - needs valves done its definitely a little neglected...
  3. J

    Saying Hi from Montana

    Just introducing myself. Found a great deal on a leftover 2016 model and currently working on the break-in miles. Once done (probably this weekend), I'll be installing a Powercommander, auto-tune, and quickshifter while doing the oil change (possibly an exhaust too). Love the bike so far...
  4. 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)...
  5. P

    Interesting oil leak? with Video!

    Currently my bike has about 2000 miles on it. When it was at about 200 miles I noticed an oil leak coming from this bolt area. I took it to the dealer and they had it for a week and said that the oil was just chain lube. Today I was doing some cleaning and had the side cover removed and put it...
  6. O

    Question regarding measuring oil level

    I know that bikes with oil inside the frame you measure the oil differently then with bikes with oil in the carter, at the bottom of the bike. In one kind you measure oil level when it is hot and one when it is cold, which kind you measure hot and which kind cold, and why ?? Do you measure...
  7. D

    Who knew low oil pressure could be funny?

    Made these videos last weekend and have since figured out the low oil pressure problem on my new motor thanks to help from Chad at Welcome to KTM Performance (I forgot to transfer the oil jets to the new clutch cover)... Before low oil pressure warning...
  8. B

    Broken Oil Filter Cover Bolt

    Good day, Has anyone experienced this? I did myself the first oil change for my bike but I over-tighten one of the two bolts for the engine oil filter cover. Brought my bike already to the nearby machine shops but no one dares to give it a try to remove the broken part due to its small...
  9. rick

    Garage clean out: lower, fender, bolts, oil filter, sparkplug, lap timer

    I have some parts leftover form my buy-back: Stock lower rear fender passenger pegs tail/plate bracket owners manual and ktm folio replacement body work bolts front axle bolt sparkplugs oil filters It's also time to sell my aim mychron lap timer and beacon as well. Make me an offer
  10. K

    2017 RC390 Maintenance Parts Compatibility

    Hi Guys! Brand new to the forum and will be soon an owner of a 2017 RC390! Delivery is to be sometime April or latest May here in Canada in the PNW. I have already started stocking up some parts for the RC! So far I have purchased the Helix Racing 1.6 Bar Radiator Cap, some Engine Ice, as...
  11. F

    RC390 at auction. what to check before bidding

    Hi all Im new to this forum Iv got a ktm 950sm which I love but am looking for a rc390 as well for some track day fun :) After reading some threads on here concerning engine / headgasket problems Im now becoming a little wary. The particular bike concerned has been classed as a repairable write...
  12. A

    How long to break in a new bike/engine?

    Does anyone know how long it takes to break in a new engine these days? I generally only buy 2nd hand bikes as they tend to have all the goodies on them already, but this was too cheap to not buy :) The Dealer says 1000klms to run the bike in. I've done 200klms then swapped oil and filter...
  13. M

    Is there a list of suggested mods for a road bike?

    Straight away, I'll say ACF-50 or Copaslip on all the little fasteners on fairing etc. After 4 months over winter from new, mine were rusted and difficult to remove. And change the oil halfway between services.
  14. S

    low oil pressure after 20+ kms of riding,radiator fan does not turn off during idle.

    there are numerous issues that came up after the engine rebuild.now the bike runs almost fine,but after 20+ kms of riding at speeds above 110kmph the bike shows low oil pressure,once it appears then its occarance freequency increases as i ride. dissappears and comes again after a while. replaced...
  15. K

    Fork spring and oil change.

    I decided to do the front of the RC390 and not upgrade to cartridges at this time. I am 208 lb stripped...228 with leathers. Would would recommend the 7 to 7.5 wt fork oil still along with .95kg springs for a track day/ street rider?
  16. S

    RC390 Update to leaking oil - Crack in engine case

    Unfortunately my newly bought RC 390 has a bit of an oil leak. Using UV oil and light I was able to see clearly where it came from, right near the rearset through-bolt! How would you guys proceed from here? Repair the case at a shop/dealership, use JB weld to patch it up, other techniques? Any...
  17. Biker

    Plastic Oil filter thingy

    Just an observation: the plastic oil filter at the location where the oil is drained from has magnets to catch the finer shavings. Thoughtful deign. I have used similar in my lotus (magnetic drain plug) and it used to catch a fair bit of finer debris.
  18. S

    Overheating engine, radiator fan stays on.

    Okey,so after a lot of unsuccessful diagnosis the engine still isn't cooling sufficiently. The entire engine is rebuild as the older one seized. Old parts used are: Cams. Cam chain. Oil pump. For the test, we took two identical rc 390s, mine and another one. Started both of em and...
  19. Seth

    Oil always high

    When I come home from work the oil level after 1 minute of rest is always above the high limit line. Factory oil, 420 miles. Will this cause harm to the engine?
  20. S

    oil consumption

    Just checked my levels after yesterdays hard running. RECHECK--oil is on the lowest level of sight glass...added 200ml. I admit I never checked it when I got it back from the dealer. Added 200ml to the crankcase, just got back from a hard 2 hours or near rev limit riding....level is unchanged...
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