Re: KTM Duke 390 - Owners Reviews and Experiences

Noticed another strange thing. The rear stop light lights up in a very dim mode when you turn the key on, while all the switches are in off position. The LED's on the bottom and middle row is lighting up while the top row stays off. Not sure if this is an issue with my bike or common in all 390s. Attaching the pic.


With Key turned off


With key turned on

Re: KTM Duke 390 - Owners Reviews and Experiences

@ saba Pop in a high performance air filter that should increase the exhaust note.

Re: KTM Duke 390 - Owners Reviews and Experiences

Electrical current leakage from some fault with wiring-harness or the switches . Report it immediately to the authorised service .

Re: KTM Duke 390 - Owners Reviews and Experiences

I know changing into high performance filter would increase the exhaust note.But what my problem is that my bike doesnt have the same exhaust note as other bikes and it is very muted compared to other bikes.

Re: KTM Duke 390 - Owners Reviews and Experiences

Yep, it changes

This 2014 freaking roars above 4k rpm.

@ All - if you all remember I had put up a query regarding white smoke emission during early morning start up. Lately, this has reduced, I'm using speed fuel over the 6-7 tank fills. There is a considerable change to the engine, the bike feels smooth and has a flexibility like a rubber band. If at all you wish to try this do give it time, the bike is currently on the 9th tank full with speed fuel. There is slight reduction in white smoke as well, however, I would still require some more time to ensure it has been resolved.

Re: KTM Duke 390 - Owners Reviews and Experiences

This is seen on all Bajaj bikes that uses that damn BCU. This includes P135/150/180/200/220. Why this happens? The BCU GND might not be proper or else, there is small current leakage inside the BCU circuit. The later seems more probable. LEDs being devices that can light up even when voltage is in milliVolts are sensitive to this.

In short, nothing to worry.

Re: KTM Duke 390 - Owners Reviews and Experiences

Happened to me with my pulsar 220. You should try changing the brake light switch. That did the trick for me.

Sent from my GT-I9500 using xBhp Connect mobile app

KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*

Hi Guys,
I just bought a KTM Duke 390 like not even a month back, i just got my 1st 1000kms servicing done on saturday. Before i start with the question, ill give you my observations. When i bought the 390 i had to fill it with 'normal' petrol or xtra premium or speed if lucky (i live in noida), highest octane i found on the an experimental way to work one day to dodge traffic , i found a IOC petrol pump with 93, so i tanked up. Now, since the start i have noticed a constant LOWEST mileage of 26 kmpl, when i say lowest is like in bumper to bumper traffic maharani bagh to DND types, always on the first gear etc. and a max of 33 kmpl. which is very acceptable and i had no issues with that.

Now , got my first service 1000 kms serivce done on saturday, and i met another fellow 390er , i struck a convo with him regarding the bike and asked the general overall feedback, in which he also mentioned he gets a max of 26 kmpl and uses speed 97 octane, so i thought after service id go down to the location he said speed 97 is available and tank up and continue to do so forever. Now eversince i tanked up with Speed 97 (the BP before moolchand), i have been consistently getting really bad mileage like ive seen as low as 13 kmpl and highest is 26 kmpl (like the guy i met at the ktm service station mentioned who was also usin 97 octane). Since then , im still runnin on the same tank and still driving exactly the same way i have since day 1 as u cant change much of ur driving style in full blown office traffic it will always be bad, but why this huge difference in mileage after a higher octane (highest) octane fuel ?? im so confused as i was reading and i knew there is sum relation between compression ratio and the octane of fuel (denser/ less denser) etc.

So is that causing the decreased mileage ? because i thought i should be getting an increased or atleast a little better mileage after the first service ? im heavily confused can anyone shed some light on this ? and as a closing note, a point to remember im still on that 97 octance tank, so i havent gotten a chance to try the lower octane again. One point to ponder is, if it matters, the 'indian' 390 has it mentioned on the manual to use 91 octane or better, while the exported ones have 95 octane or better on them ? have the indian bikes been tuned to run on crappier fuel ? HELP!!

Re: KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*

Approved & merged!

Re: KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*

After first service the mileage of any bike differs regardless of you using Speed, Power, Regular, Jet Engine Fuel or even Hair oil. However, the number qouted by your friend is true. We members out here receive mileage around 25-30kmpl in city. On highway, I have personally seen the bike returning astonishingly 33-35kmpl. But again, that figure is rare and depends on the traffic, gear changes, air drag, braking, etc.

The D390 sold here or in any other country has been specifically designed to handle all types of octane ratings available for general public. What you are going through is just panicking after the first service. So chillax and ride to its best.

Re: KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*


Thanks for the reply Eshan! see thats the point,if everyone is having the same mileage of 25-30 kmpl, i would understand, but me tanking up with 97 octane and dropping to a mileage avg mileage of 18 kmpl (lowest 13 kmpl !!) shakes my bones a bit, that is it due the denser fuel etc. the compression ratio isnt able to keep up with it and inturn crap mileage or i dunno? do you or infact does anyone know how the duke 390/200 calculates its mileage ? is it a separate thing based on live feedback of from the driving, or is it calculated from the other numbers that you get also like a calculation from the Avg.Speed indicator ?

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** if everyone was having the same mileage of (13)18-26 kmpl

Re: KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*

How are you calculating your fuel economy? Tank full basis or just based on digital meter...
because on tank full basis i get around 20-25 with total city usage... hardly ever slotting in 5th gear !
I got the same FE with Shell Super and Normal Petrol. Just the low end performance is better with Super.

Re: KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*

Hi Rick, well the mileage im quoting is off the digital meter, i think by the end of the week ill know based off the full tank how many kilometers i clock in that 10/11 lts. True the low end performance is better with the 97 octane (or higher octane) but wow the sudden hit in mileage blew me away from a constant bumper to bumper traffic getting a 26 kmpl miniumum to a sudden low of 13 or avg 18 kmpl, weird, tho ill write back after i try the 'normal' fuel again, if the mileage goes up to what it was earlier ill be stumped :/ :/ . tho the 390 has a compression ratio of 12.88:1 which would mean using a higher octane fuel, leaving me too confused to think :/

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BTW im still trying to find out , does anyone know how the Mileage is calculated in the Digital meter ? is it based off calculations from the 'Avg. speed' or is it based on live feedback ? because if its avg. speed, ive never seen average speed more than 55-58 kmph in it so that might be it, tho i might be driving much quicker on the open roads like the DND or sumthin.

Re: KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*

During start up say for first 5-10 minutes it will show you a mileage of 18 or even 11kmpl. Dont go by that system since it resets once you press the engine kill switch. The best way to calculate fuel mileage is from Reserve to Reserve method. You are overthinking buddy.

Re: KTM Duke 390 higher octane lower mileage ?? * warning lot of text :-$*

I did not know it resets the mileage-O-meter on press of the engine kill switch. Are you sure about it?? Haven't read anywhere. So at a signal I kill the ignition, not touch the engine kill switch, the meter won't reset??