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  1. TVann

    What Should I do?

    Ok, this is going to require a back-story. Above is my 17 RC390 with 6k miles on the odometer. It's never been tracked. Never been down. Owned by 63 y/o guy who is fastitious about taking care of his bikes. It has the following upgrades: 1) A Fire-Ring cylinder, new piston and hi-comp gasket...
  2. TVann

    FS: Cylinder/New Piston/New Head gaskets

    Skimmed cylinder head from 2017 RC390, new OEM KTM Piston, New OEM KTM Head Gasket $400/$25 shipping within USA I previously blew the head gasket, had head skimmed, bought New Piston and Gaskets... then decided to completely replace with the Gray Area Fire Ring cylinder/piston set and hi-comp...
  3. TVann

    I'm Done With RC390's

    I really wanted to like the RC390. I've always been a fan of thumpers and lightweight small displacement race oriented sport bikes. Bought a used 2017 RC390 with 5k miles and good service history. Rode it about 1000 miles when it overheated and blew the head gasket. Spent $3500 having the head...
  4. TVann

    Why Flash?

    As I understand it, the dealer will "flash" your RC390 ECU with an "Akra" flash, which I assume gives more fueling, assuming an akra exhaust. This flash essentially rewrites the ECU itself. If, like me, you have a PCV, which makes adjustments to the ECU, is there any legitimate reason to first...
  5. TVann

    Hi-Comp Thin Head Gasket

    So, I've experienced the dreaded over-heating on my 17 rc390. Overheated, won't run etc. Turns out there's a hole in the radiator from road debris. Brought it to trusted mechanic and had him replace the fan (SPAL), hoses, new radiator. In doing so it appears the head gasket is blown as well...
  6. TVann

    PCV Autotune question

    Hi folks: First, let me admit: I'm an idiot. That out of the way.... When I bought my 2017 RC390 last year it came with an installed PCV. The seller also gave me what he said was an Autotune unit that he had previously used but had dis-installed. Its This: No Auto Tune Unit itself; no O2...
  7. TVann

    Ninja 250/300 Wheels on a RC390?

    What, exactly, are the problems raised when attempting to modify a wheelset to fit the RC390? I have a set of Galespeed forged wheels for the ninja 250/300. They're compatible to the following extent: 1) rim size front and rear is identical to OEM 390 wheels 2) single rightside brake caliper...
  8. TVann

    Raising Forks in Triple

    I'm curious if anybody has experimented with lowering the front end by raising the forks in the triple clamp? My (new to me) RC390 seems high in the front and somewhat resistant to turn-in, certainly more so than I'd expect for a bike this weight and geometry. Compounding the problem is the...
  9. TVann

    WTB: Used Set of CF or Forged Wheels for RC390

    I'm looking for a set of used lightweight wheels - BST, Marchesini, Gale Speed etc - for the RC. Nothing damaged. Thx.
  10. TVann

    New Owner

    Greetings Everyone: I've recently purchased a 2017 RC390. Bike has 5k miles, a full high-mount Werkes exhaust with PCV, tail tidy. I've been riding bikes since I was 12, my first bike being a Honda cb160 back in 1970. Since that time I've owned more than I can count, everything from 2 Stroke...
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