Re: KTM RC 390 Ownership Experience

If you can put it on a paddock stand and check the alignment of the front wheel - if its moving freely.
The disc plate or the alloy wheel if deformed will lead to partial friction with the brake pads.
It happened to me after an auto bumped into my front wheel.

cheers.

Re: KTM RC 390 Ownership Experience

How old is your bike and the kays clocked? A rusty or screeching noise accompanied by friction or tightness in the movement of the wheels can mean a failed wheel bearing. Wheel bearings usually produce high pitched squealing or a jarring sound when worn and continue to be used, or as rustic as you mentioned. Secondly, check your wheels by jacking up the bike and rotate the wheels to see if there is any friction, lateral play both front and rear. Are you able to isolate, at least where the sound is coming from, front or the rear?

Cheers!
VJ

Re: KTM RC 390 Ownership Experience

Mate I request you to check the and attach a photo if possible, I have noticed this inherit design flaw with gear shaft and side stand



Have a look at the circled part, when the bike is on side stand fully leaning and in 0th/1st gear, see if the side stand spring/spring cover bush part is rubbing and touching the against the gear shaft constantly, in my bike I can see this rubbing happening. So I am being very careful to not put any weight on the bike when it's on side stand so that it does not get shoved into the gear shaft.

So never ever try to bend the bike only on side stand to lift or rotate the rear wheel.

I will try posting picture from my bike.

Edit: Adding pics from my bike


I am suspecting this thing could be reason for a blown shaft

I have noticed that the stock fan speed depends of multiple things on my bike, when I am riding at night time with headlights only Low beam ON, the fan is running at say 80% speed, the moment I turn ON High beam the fan speed reduces considerably say like 60% and sound also reduces.

When I completely turn OFF both Low and High beam, feels like fan speeds up almost and reaches like 100% speed and sound also increases very much.

P.S. I have tested it on stock battery which lasted for 3.5 years even when it was dying state and same result on a brand new Amaron battery.

Has anyone else noticed this behavior

How much are the H rated Pirelli's for the front and back and where did you get it in Bangalore?

I have a W rated Pirelli got it Mahindra Mojo service center near Hebbal since I could not find it anywhere else, Mojo stock tyres are W rated Rosso 2's.

Re: KTM RC 390 Ownership Experience

Yeah when you turn on the high beam the fan performance will affect slightly, I've noticed it too. But my main issue is for the first 30 min fan works just fine and after that there's literally any noise from the fan, I guess it's dying. Gonna change the fan in next service and regarding that pirelli, for the front I've paid 4600 and not sure with rear tyre price. I'll check and update

Re: KTM RC 390 Ownership Experience

Yes, if that's the case then the fan is dying as the fan motor heats up it's performance is reduced.

But in case if you are to changing the fan, do check the below video.


These fans are from stock CBR250R, CBR has only 1 fan, you can take 2 fans for the RC390 for around 2400Rs, since each 1 costs 1200Rs, so it'd be almost the same cost of KTM fan which is around 1800Rs. So for 600Rs extra you'll get better cooling and these are less noisy more than 50% less.
These CBR are stock fit in the chassis, only that you will have join two fan wires into one.

I am looking to upgrade to this setup, but I have other important things to take care on the bike before I go into this.

Re: KTM RC 390 Ownership Experience


Side stand grazing with the rubber boot of the side stand spring is the case with almost all Dukes and isn't a point of concern even with the bike being lifted. As a matter of fact, it's just a rubber cover to conceal the stand spring. If you move press the rubber cover down, you can see the spring won't come in contact with the side stand. The gear lever oil seal going bust is in no way related to this pressure whatsoever. Remember, even if there were any pressure to the shaft by the stand, the pressure whatsoever would still be very insignificant when compared to the pressure provided by our foot.

The fan rpm varying with load is perfectly normal, even with a good battery, though mildly and even more on an older battery. Headlamps and horns by default draw in more amps than the fan itself so you can see the rpm drop when the bike is switched to high beam or using horn or a combo of both, which is perfectly normal.

Cheers!
VJ

Re: KTM RC 390 Ownership Experience

Update on throttle body: after a 2 week wait finally got the part replaced under warranty. Svc didn't charge a dime this time - not even labor. The bike from what I can tell is running very well now. Happy ending (I hope).

Re: KTM RC 390 Ownership Experience

That's great. Exactly what I inferred to your earlier post, either a replacement or a thorough clean up job. Nonetheless, do keep a tab for the coming few days.

Cheers!
VJ

Re: KTM RC 390 Ownership Experience

Oddo is 22k, bike is 3 and half years old.
Both the front forks started leaking, oil is coming out quite fast. Not sure oil and dust seal replacement will work as it's already replaced 2k kms back.

Re: KTM RC 390 Ownership Experience

Where did you replace your fork oil, was it at an SVC or an outside mechanic? Most reasons these days for busted seal is dust coupled with excessive fork oil. Excessive fork oil exudes excessive pressure on the oil seal which cause them go bust. Secondly, the road, frequent bumpy and dusty roads would mean the forks seals would go bust sooner coupled with the above mentioned reasons. Both forks leaking simultaneously would mean they're trying to infer something.

1. Excessive fork oil
2. Fork not bled properly due to which air bubbles get trapped make the fork spongy which induces dive and in turn cause fork seal leakage.
3. Rough usage on broken roads and or frequent plying or broken roads and hard wheelie landing (if you do those)
4. Dust accumulated on the fork slider can kill the seals due to repeated rubbing on the innards of the seal.

I'd suggest you to replace your fork seals this time, make sure the fork is completely clean, and the right amount of oil filled 450 ML per leg, you can go ahead and 430 ML with no issues whatsoever. Make sure the fork is pumped and bled to remove air and then the fork oil installed. Make sure the seals are replaced in front of you.

Keep your observations posted.

Cheers!
VJ

Re: KTM RC 390 Ownership Experience

that's the headache with usd forks when the seals go out
this time when they fix the issue, ask them to do the following:
remove the forks, drain the oil, dismantle them and thoroughly wash them with their water wash jet. make sure the outer dust cover is also cleaned out from the inside (it collects quiet a bit of dirt, that is usually not cleaned out). also inspect the fork leg closely for any scratches (do it yourself and don't ask the mechanic to do this.. they might simply say there is a scratch and you need new forks).. if you do see scratches then you will probably need to replace the fork tubes.

after through cleaning put it back together with fresh oil and new seals (the fork seal kit comes with dust seal and oil seal).. if you want to you could ask them to replace the outer dust cover (the one that you actually see on the bike, the dust seal and oil seal are located behind this.)
you could use a total of around 430ml, preferably don't go below this, and after adding say around 390ml close the top nut of the fork and pump it a few times and then open it again and add the rest of the oil, close it off and pump it again a few times and install them back on your bike. if you pump it without adding oil, it is of no use and you are asking for trouble dry humping it.

and make sure you are around when it is being done.

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Lucky man. Did they also replace the tps and ics or just the tb and transplanted the tps and ics from the existing tb ?

Re: KTM RC 390 Ownership Experience

Thanks VJ , S1D

Yes earlier fork seals replacement was done at SVC in front of me. Didn't got much time to check if they followed what you guys have mentioned.

This time Will check the things that you mentioned.

Re: KTM RC 390 Ownership Experience

btw, you can get the information regarding the procedure from the workshop manual.. just google it and it is explained well.
but just make sure the fork is cleaned out thoroughly before you start putting it back together.. and making sure either you replace the outer dust cover or clean it out so that there is no dirt behind it.

Re: KTM RC 390 Ownership Experience

Hi
I own a 2015 RC390, my engine gave up on me, I gave it to SVC and they have given me an estimate of approx 40K for engine rebuild. I just wanted to know weather it is possible to purchase a new engine, I asked SVC guys who said we will have to reassemble the engine with new parts and complete engine is not available. Any help will be appreciated.

Re: KTM RC 390 Ownership Experience

Extremely sad a proposition you're given with. It would be great if you can share us some chronology with respect to the failed engine. Was there a repeated issue that eventually caused a failed engine or were there any procedures carried to the engine earlier, would be curious to know what made an engine give up just like that.

The junkyard hoarders have slowly yet steadily hoarding the KTM parts and if you can broaden your search a little, you can probably find yourself a good deal, a working engine for half that price, of course after thoroughly inspecting the engine along with a mechanic which I would suggest. Try OLX and the likes, you might probably get a click.

A full engine can be asked upon with a little push and if you're willing to pay for it. The reason they're not giving you the complete engine is that the old engine number has to be punched to the new engine and all the red tape associated with.

Do keep your observations posted.

Cheers!
VJ