Re: KTM 200 Duke

A little bit of oil in the air box is acceptable....by this I mean trace of oil stain and stickiness , and not few drops of oil moving about , or dripping .
A thinner oil will also show indications as if the rings are worn, and you will see more oil in the air box..this is because a thinner oil which is less viscous can cause poor ring sealing , more than a thicker oil....The blowby which causes this accumulation of oil is more whenever there is Hard acceleration which puts more fuel into the cylinder and it can slip through rings causing increased blowby.....It is this leaking compression through the rings which increases crankcase pressure and causes oil to form a fine mist and go through the breather tube

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A trace of oil in the form of a thin coating or stickiness is acceptable.....stagnant or oil dripping is NOT.
Blow by is caused when you accelerate hard and more Petrol gets into the cylinder and explodes, creating pressure...a little bit of the expanding gases escape through the rings and come into the crankcase as blowby ...thinner oil and poor ring seal causes increased blowby.
So during engine braking the throttle is closed and no enhanced ignition pressure happens to cause blowby..
Hope the explanation is helpful

Re: KTM 200 Duke

So then a thinner oil like Motul 300v would be less recommended if used with performance air filter (especially conical one) than let's say Motul 7100, which is still synthetic but slightly less fine?

Re: KTM 200 Duke

Technically right....Practically the Ring sealing ability of 300 V ,and sate of engine, is of more importance, than all the theory I can put forward here.
A free breathing Air Filter based on Cotton and oil combination stops less dust than a Paper Filter....this over a period of time will lead to accelerated ring wear as the dust which goes in will act like a fine abrasive...so if you are thinking of owning an engine for long, stick to stock filter and do not change to cotton and oil type ...if you are keen to have better air breathing for your engine then you have to do some DIY and go for increased surface area Paper filters...

Re: KTM 200 Duke

[MENTION=18379]splus[/MENTION] do let me (or all of us) know which headlight bulb you install. Even i'm thinking of upgrading because the stock bulb is just too weak. :/

Re: KTM 200 Duke

Its not about fine. There is a difference between fine(the lubricating quality, the finer the better) and viscosity(thin or thick oil), 300v and 7100 are both w50 grade, so, both of them should have the same viscosity at a given temp (when engine is hot).
More so, being a superior synthetic the 300v would be able to maintain its viscosity longer than 7100 ensuring better sticking to engine components. In short 300v is better option.

Sent from my GT-I9100

Re: KTM 200 Duke

In the Practical world i had seen that engines made with close tolerance using superior metallurgy tolerate thin grade and less viscous engine oils...typically old car engines with larger tolerances,and comparatively ductile metal needed w50 grade while the modern engines come with w40 or w30 grade as stock recommendation..

Re: KTM 200 Duke

If your engine can max at only 7k rpm when you fully open the throttle then something is very wrong there or you have some rev limiter put on your bike. Go to SC and get it off.

Stock bike revs up to 10.5k rpm and Kiirus ECU 11.7k rpm.

I see. Thanks for gyaan!
I guess it depends a lot on how the engine was broken in, hard or been babied...

What about foam filters? Pipercross claim they have much better dust filtering than oil and cotton filters due to their dual layer (coarse and fine) foam filtering.

Re: KTM 200 Duke

Hi Guys !

Anyone here upgraded the headlight halogens to Philips X-treme Vision or Blue Vision ultra??

If yes, then feedback on the same...

Re: KTM 200 Duke

I haven't upgraded to those, but I am running HID's without a projector. I don't know why, but the throw is upside down now. It give me ALOT of light, but on high beam it really troubles the oncoming traffic, which I use for the ones who use High Beam all the time. Rest of the time I use low beam and its much more than the high beam of the stock bulb. It is brighter so covers more visible area. I have rarely needed to use the high beam, except for over 100 kmph on highways. Using a H4 5000k magnetic Xenon HID kit.

Re: KTM 200 Duke

haha.. even I do the same for the morons who don't switch to low even when you give a pass...

What were the electrical changes you made for the HID?
And altering the electrical's, wouldn't it void the warranty?

Re: KTM 200 Duke

There were absolutely no altering, my mech made sure to not even scratch a single original wire(as I always want) and if need to, can be converted to stock with anyone to even question if there was some other lighting system installed. Any modification to electricals voids warranty, but if and when I would need to claim warranty I would just return the bike to complete stock condition and give the bike to them.

Re: KTM 200 Duke

From my little understanding of the material and construction of Air Filters, The Paper type is supposed to be the best followed by Cross layered Differential density foam filter(like in Piper cross)then plain Foam after which the cotton and oil type....
It is my belief that when a manufacturer designs and selects a specific type of material and shape for making the components of the engine or body, he is well aware of the design parameters and what works well, and ensures longevity of engine life.....so any upgrade or alteration can be attempted only after understanding the same...

As for Pipercross One should take a close look at the specifications, and how well it is suited for the application,weigh the pros and cons and then make the decision.
Here is a useful link on the test done on various Air Filters ..esp the K&N compared with others....hope this helps..

Debunking the K&N Myth - Why OEM is Better : Nissan Articles

Re: KTM 200 Duke

Thats great... I am looking for a much simpler option, thats why the query about philips halogens

Saw your 220 mods.. Good job there.. Keep the spirit up.. waiting to see mods on the D200..

Re: KTM 200 Duke

I posted a question some pages ago if anyone was using a projector or HID, so I'll ask you now.
I basically want/need more light and am looking for a best solution but I don't know much about fitting HID or projectors.
So, I thought just to start with Phillips Extreme Vision bulb and see if that's enough.

I never use high beam, don't like to blind the oncoming traffic, but I also don't want to lose the pass light switch for sleepy truck drivers going towards me on my side of the road while emptily staring at me, or to warn any other vehicles/pedestrians.

I suppose a projector just focuses/concentrates the light where it is needed the most (center of the road ahead of us)? How does it fare (with a better bulb, like Phillips) compared to HID? I suppose its main problem is to fit it nicely?

How is HID in this regard? Installation, price, any particular model for Duke?

Please shed some light (pun totally intended) on this topic. With low beam preferably...

Re: KTM 200 Duke

A word of caution to people attempting to fit HID...the cheap Chinese HIDs fail quickly and cause burn of the wiring loom..Philips HID last longer, but it is difficult to get genuine one due to the Chinese ones marketing under Philips,Osram,Bosch etc...A color temperature of 4,300 K is ideally suited for all weather application, while higher number denotes color temperature inclined more toward Blue , which performs very badly in Rain and Misty condition...
So request owners to be careful with selection, and installation for enjoying your ride any time of day or night..
Philips Extreme Vision has a more light output than normal Halogen and a 55/60 seems to be enough ...but at 550/- is pricey