Recent content by 1JZSupra

  1. 1JZSupra

    Oil Leak Spark Plug Tube RC390

    They are cheap. I would get both and replace the top one for now. If that doesn't fix it you may have to do more work,
  2. 1JZSupra

    Oil Leak Spark Plug Tube RC390

    Not hard. You can remove the tube without removing the cam bridge. I usually use two screw drivers to kind of walk it out.
  3. 1JZSupra

    What 390 engines fit into a 2015 frame?

    Just got the parts and have them on stand by. You can easily do the repair at home for pretty cheap and about a week's worth of work on your end.
  4. 1JZSupra

    Need Help Can I use a 2014 Ignition cover on a 2016?

    Oh crap, yeah I forgot about that thing. I remember something about this before. Let me look it up.
  5. 1JZSupra

    2016 KTM RC 390 bogging down really bad, giving throttle will cause it to bog down until it eventually gets up to speed.

    I have a first gen and everything you are describing is exactly how this engine reacts when it doesn't have enough fuel. I have a lot of engine related mods and experienced what you are describing until I got the fueling right. When was the last time you did valve checks? you might have told...
  6. 1JZSupra

    2016 KTM RC 390 bogging down really bad, giving throttle will cause it to bog down until it eventually gets up to speed.

    Disconnect the battery, let it sit for a little and then reconnect it. Then start it, let it idle without touching the throttle for 15 minutes. After 15 minutes shut the bike off.
  7. 1JZSupra

    Question 2017 RC390 Jumping out of 5th gear under hard acceleration?

    I'm guessing clutch plates might need to be replaced soon
  8. 1JZSupra

    RC390R Upgrades

    What are your thoughts on them? I have them as well. Do you notice any valve train noise after installing them?
  9. 1JZSupra

    RC390R Upgrades

    Did you do the install of the cams?
  10. 1JZSupra

    Crankcase breather questions

    I have an oil catch can on mine.
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