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I'm getting blink code 53 on a bike I bought non-running and just got running. So I don't know any history. And the blink code chart ion the manual doesn't list 53 (5 long and 3 short. The engine seems to run fine, though I've only idled it and blipped the throttle in neutral. Anyone know...

USA or non-USA, I'd go for either. I just want a set of stock mirrors for not much money. I'm in Texas, ZIP 78024.

I removed my engine for some work including checking head flatness, installing titanium valve spring retainers, and possibly splitting the cases to renew sealant on coolant channels. My first discovery was that my cam chain tensioner had completely failed. The spring had broken and the cap...

I'd like to know if the alternator rotor can be pulled using a generic flywheel puller, or if it can only be done with the expensive special KTM tools. I would also appreciate input on other engine-related special tools that might not be essential. What size is the castle nut wrench for the...

Yammienoob is a popular Youtuber. His main audience is new riders and wannabe riders. He bought a 390 from me, and rides at my track. I get a brief mention around 11:25 in this comparo when he takes the 390 out to play. You'll also see a classic Rothmans Honda NSR 250.

For some time, I've felt that my forks have more stiction than they should. I've now confirmed that the reason is that there is a small amount of play - perhaps 0.3 mm - between the for legs and the wheel bearing spacers. So, when I tighten the axle screw on the left side, the fork legs are...

I've learned the lesson more than once: Loctite everything on the 390. I learned it again today when I was truly surprised that the upper rear engine mounting bolt had lost its nut and backed out. It looks like it must have happened quite a while ago, judging by the reshaping done to it by the...

Sold -- 2016 rc390 SOLD -- Lovingly and carefully assembled from select parts (including some never-used 2018 components) I bought from members of this forum, plus a few odds and ends bought new from KTM dealer. $3595 https://austin.craigslist.org/mcy/d/hunt-2016-ktm-rc390/7008533209.html

Well, I am just about finished with my little project: a 2016 stock RC390 ABS with never-used 2017 wheels, tires, forks, and fairings; and an Akrapovic exhaust. All it lacks now is a $4 rear bally pan bracket, which I have on order. And I'll be replacing the slightly disreputable stock...

If the evaporative emissions solenoid is removed altogether, will the ECU throw an error, or will any other problems arise? I am assembling an RC390 from bought parts, and I lack the solenoid. I'd prefer not to spend $50 for a replacement if I don't have to. Thanks!

I have Tyga dual Moto Maggot silencers, but I find them to be louder than my ideal. I'd like to trade them for Tyga dual oval silencers. The plumbing all appears to be the same, so only need to swap the silencers. I'd call the Moto Maggot units amplifiers, not silencers. If loud is what you...

I spotted a Bitubo kit on eBay. I've see some discussion, but nothing absolutely definitive about whether the internals of 2018 forks are different from 2015/16 forks. As far as I know, only the outside is different. Would this kit work on my 2018 forks...

Yesterday I received a link from Grayarea to a FB video about a new exhaust. But no pricing or ordering info?? No dyno chart or other comparison to other Tyga exhaust options? https://www.facebook.com/tygaperformance/videos/461793661026797/

Understanding the value of removing the stock side stand before I regret not doing so, I nevertheless really want some way of supporting the bike when I stop. I'm not keen to seek out a wall to lean against. And when it comes time to put up the bike on a proper paddock stand, I again would...

I bought Race Tech fork springs for my 2016 RC390. I am confused about how much to shim them. The only instructions in the package said to see the Rectech website, which I did. That site said to set ’Preload’ to 10mm. I am not sure how to put that into practice on the RC390. I presume it...

Today I modified my old JoeHauler hitch rack to use Pit-Bull's most excellent Trailer Restraint System. It took a bit of work, but the results are exactly what I was hoping for. This makes transport so much easier and very secure. I also modified my Kendon Stand-up trailer to use the TRS for...

Hi, all. My name is Reid, and I live in Hunt, Texas, a rugged rural area northwest of San Antonio known for having the best riding roads in Texas. I've been riding street bikes for over 40 years,but this bike (2016 RC390) will be my entree to track riding. My bike stable presentlyhouses a...