issues

Who has idle/stalling issues with their RC? i have never been able to have mine idle. She runs great once i get her on the track, but the second i pull into pit lane and pull in the clutch bam, shuts right off, i have to have it under load to keep the dam thing running. I tried the 15 min idle...

Dear fellow racers, I am curious about how the reliability has been with your track RC390? If you have had issues what are they? To start this off I have had a blown head gasket, valve retainers fail and take out the exhaust cam, and a piston crack in half. I am looking to see if there are...

Okay so i figured i would wait till i put some miles on the bike and gotten used to it a bit before posting, but these issues are irritating and persistent... i have a 2015 with close to 6k miles, only 1000 or so miles of those are mine. The bikes idle is all kinds of unpredictable, sometimes...

Anyone have issues with there bike idling? Mine is a bugger to start (take a bit to kick over first thing in the am, but then is fine) but she never idle's well. stalls continually when sitting and even when i am riding if i stop and try to idle in neutral she usually stalls. No issues on the...

I'm new to the forum, however, I've already managed to find lots of useful information. As of right now, I actually own a 2015 KTM RC8R. Unfortunately, I wrecked it a little over a month ago and did $15,000 worth of damage to the sucker, now I'm waiting for her to salvage out which leaves me...

Hi, Joined here a while back because was looking to pick up a brand new 2017 RC 390. Have had my deposit down for one for a while, but no words from stealership yet. Regardless, been doing a LOT of reading, and it seems like the reliability thing is always an issue (head gasket problems...

Hi all, running a 2014 390 as a race/track bike only and having head gasket problems, just had the head machined due to normal warp issues with early models. Just been to a track day and the head went again in the last session, no noticeable overheating issues after doing cooling mods, ( better...

Key on and getting this code: JY_1.3.1 ERROR the dash display comes up and it then says 'SERVICE NOT SET' and the clock at '01:00' and the starter won't even crank over. Thinking battery issues, anyone had the same?

Knew nothing bout the bike but was satisfied with the older 690 Duke...heat issues became apparent almost immediately...came to this site and are ready to order the fan upgrade, already ordered 1.6 radiator cap and hoping they will solve the heat issues. I also noticed the plastic vanes in front...

I have never run a fan on a race bike before. Always removed to save on weight, but i have heard about the Rc's overheating so does anyone not run one? any issues? I have the bike apart and now would be the time to remove it if i am going to. Thanks! -jason

I am having issues with brake pulse with the new ktm 320mm rotor, I measured runout with a dial gauge and had 0.011". I removed the wheel, cleaned the surface of the hub off and the disc as well, retorqued and now i am at 0.005". I havent had a chance to ride since its dark out an raining...

I have a '15 RC and have a question about optimal fueling. I am not going to do any pipe or airbox mods as I am not looking to increase noise or horsepower or even change the torque curve. I have read a lot about the bikes running lean and think I understand the socio-political reasons for that...

Hello everyone just joined today and wanted to post on my experience with my 2016 rc 390. The bike I was manufactured on 3/16 so I am hoping it has any updates or maybe even some of the issues resolved. The fan is quiet and comes on three bars before the hot line. It has never gotten any hotter...

So here we go. I just wonder why we all put up with the issues that this bike has? Are we that weak and in love with the shiny orange wheels that it blinds the fact that this bike is sub par quality, I: have worked at a Yamaha dealer in the past and never have seen as many issues on one bike...

Hi Guys, I have picked up my 16' RC390 2 weeks ago and so far so good! When I got the bike I was informed of a few issues from the factory. 1. the bolt for the mirror was missing its head an required some in shop modifications to attach the mirrors. 2. No user manuals/ Owners manuals...

--- IF this is the wrong area to post please advise me which area to post in Im sorry if this wasn't the right area-- Hey all! I'm new here to the forum, I've scoured the forums a fair bit, and got to say I love the place! I have bought an RC390 2015, had it for 7 months, absolutely loved the...

Hello! I have the race upper cowl and the windscreen that goes with it. Both of these items came pre-drilled, but the holes arent even close to lining up. I can only get bolts in 2 of the holes at the same time. Even trying to flex the cowl or the screen a little bit doesnt help. Has anyone...

I don't believe I saw this anywhere other than hidden away in the Duke 390 forum. I thought I'd add it here so we can see where we're at. Simply put, the idea is to state your mileage and mention any problems you've encountered thus far. Label issues putting your RC out of commission until fixed...

Racers and street riders have been asking for a steering damper for the RC390, so it's time they got one! Introducing the Formula390 RC Steering Damper! NO drilling of the triple tree or frame required! Initial prototyping for the mounting hardware is complete. We ended up having to abandon the...

Who can recomend a nice short throttle for The Rc390 Just dont want no throttle stricking issues Stock throttle is just way to long