engine

  1. H

    Fishy or not?

    So my engine breaks @ 4800 miles, goes to the shop, they told me KTM is sending me a brand spanking new engine and I get it back with a "new" engine. Engine breaks again, turns out the engine serial number is still the same, so I call the shop, who told me KTM sends them the engine with the...
  2. H

    "Brand New Engine" they said. But the serial # never changed??

    So my engine gave out a while back and my dealership said KTM would give me a brand new engine and cover all repairs even though I was a month out of warranty. I realized the serial sticker on the right side was peeled off recently. It was odd so I checked my delivery certificate and the engine...
  3. P

    Engine Number

    Lost my California DMV Registration Card - need to get a replacement. Form requires ENGINE NUMBER in addition to license and VIN. According to the shop manual, the engine number is buried on this bike underneath the engine sprocket. Is there any other way to find the engine number besides...
  4. 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...
  5. R

    Unbelievable

    Okay I am really starting to ride the RC hard on the hilly backroads in my area of Pennsylvania.Just a background I have a Ducati 748, a 900ss and a SV650 that I ride regularly I had an FZR600 and a CBR900RR. I have to say this bike is as fun and probably more fun than any of them, I find myself...
  6. S

    Engine ticking or clatter on startup.

    The bike makes quite loud..ticking/clatter sound on startup..the noise stays for like 30 secs and then it runs normal.. Took in the bike to the dealer today..,they said it is tappet noise so they removed head cover,checked clearances, replaced one of the intake side shims, and exhaust side...
  7. W

    Stalling from cold starts

    Just curious if your RCs always stall when starting from cold? Mine always follows the same pattern: Start engine, runs fine After 30 seconds, engine stalls. Start again, struggles to start but eventually gets there. After a minute the engine is still too cold (it will stall if I try and...
  8. 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...
  9. RDAlphaRider

    TIFU - Cooling System Edition

    Hey there. I went back about a years worth of posts and didn't see anything related to this, so I figured I'd start a new thread. First off, I'm a dumbass. Now that that's out of the way... I went to drain/flush my coolant to put in engine ice. I didn't realize until after the fact that there...
  10. zaster

    Best practices on how to keep your engine cooler

    I'm sure most of you have probably seen my thread about engine overheating: http://www.rc390-forum.com/forum/engine-and-technical-discussion/1702-overheating-issues.html Nonetheless, I really love riding this bike and want to ask folks smarter and more experienced than me to share their ways of...
  11. K

    Stalling problem in a brand new bike.

    Hey guys, my happiness and joy of the new bike turns out quickly to worries... I got my brand new 2015 Cup Bike, 3 days ago.... I put the battery on charge the whole night, check the engine oil, the coolant and in the following morning I put gas on the bike and I started. I Left the bike idle...
  12. K

    Engine hours counting ?

    Hi Guys Im new to the bike, quick question, How do I check on the display the total hours on the engine ? Thank you all.
  13. Biker

    Engine light remaining on

    Did an oil/airfilter/fuel filter change but as I had dropped a nut I had to disconnect the map/air temperature loom plug to get to it. After refitting everything the bike is starting normally but the yellow engine (mil) light is remaining on continuosly. Engine is starting normally but I...
  14. S

    RC390 Leaking oil from rearset throughbolt??

    Hey guys, New to this forum and my RC390, it has about 7K miles on it. I just bought it and doing all the regular maintenance and noticed a small leak. It seems to come from the M10 screw bold that goes through the rearsets + frame + engine. Pictures below, any help would be greatly...
  15. 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...
  16. C

    Popping out of 3rd gear into 4th during heavy downshifting/braking

    Hey guys, Took the race bike to the track this past weekend. I was downshifting from 4th to 3rd quite hard braking into turns. Strangely, the bike was popping from 3rd gear back to 4th while I was letting out the clutch. This happened in the middle of my brake zone as I was approaching the...
  17. H

    2015 RC 390 for sale

    PRICE: 5000 Condition: Used Year: 2015 Make: KTM Model: RC 390 Category: Standard Type: Motorcycle Location: Boulder, CO Mileage: 357.3 Primary Color: White with sticker kit VIN Number: MD2JYJ408FC216127 Engine Size: 373.2 cc Engine Type: 1-cylinder, 4-stroke
  18. Slowpoke

    *Sigh* Damaged output shaft splines at 5000 miles.

    It seems that the factory failed to install the sprocket correctly, although I will admit It's not something that I ever pulled to check as it wasn't rocking or noisy. I have gone to change my chain + sprockets and noticed the shaft splines are pretty badly chewed :( Now I'm sure I could argue...
  19. R

    RC 390 Power

    The specifications of KTM RC 390 specify engine power as 43 bhp (approx 32 kW) @ 9000 RPM. 1) This power is available at the Engine Flywheel or at the end of the Transmission Shaft? 2) If I want to tune the ECU and measure performance, how much should be the power measuring capacity of the...
  20. Fenek

    What you, users, think about KTM RC 390?

    Hi, I'd like to buy KTM RC 390 as my next bike and I'd like to ask some questions about it. 1.) What about durability of the bike? I'm driving a lot (Alomst 20.000km on 125cm3 in 1 year and 2 months) and I require from bike good durability. I have bought Yamaha YZF R-125 and paid almost half of...
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