Originally posted by psr
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Originally posted by philip.gunner View Post
Check compression reading. At 1 Lakh Kilometers the Piston Rings and or the bore wear had taken place leading to loss of performance ,which is mostly felt in cold condition.
Otherwise your Throttle body needs cleaning.
First check and clean throttle body , then check Compression.
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My Duke 200 2016 has crossed 1lakh kms.
Recently during cold starts the bike kind of lags. Upon pulling the accelerator when in first/second gear (with cold engine) the bike gains initial speed of around 5-10kmph but upon further pulling the accelerator the engine just doesn't rev for like 2-5seconds & the bike just continues moving without any acceleration. After those 2-5secs the revs start to increase.
To counter this lack of response I have to raise the revs in half clutch to avoid this lag.
I have replaced the chain sprocket set already recently. Throttle body was cleaned around 14k kms back. Oil & other filters replaced 1k kms back. Spark plug is 14k kms old.
Clutch plates never replaced. Fuel pump never replaced.
Engine sound has also changed but can't express this sound in words.
What could be the problem of this engine rev lag.Leave a comment:
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Thank you for the post. Considering the KMS done and the carbon build up around the throttle body plate, this is bound to happen. It's advised to clean the throttle body every 25k kms for optimum performance.
Cheers!
VJ
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Posing on behalf of a friend.
Duke 200 BS3 First Model.
The vehicle has done more than 60000 km.
It recently developed an issue with fuelling which caused the bike to idle above 2000 RPM.
Upon inspection, the throttle body was found to be stuck and not closing completely on releasing the cable.
Tried spraying WD-40 in the spring and joints but it was useless.
Finally, the throttle body was disassembled and cleaned, which fixed the issue.
If anyone faces a similar issue, try doing this before replacing the throttle body.
I am attaching some photos.
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Originally posted by philip.gunner View Post
I think the grommet cannot be at fault, it can perhaps be the spark plug wire itself is cracked or kinked that's leaking spark and grounding, hence the missing. Check and replace your entire spark plug coil wire from the ignition coil to the spark plug cap, and make sure the spark plug cap is tightened properly to the the wire, a loose, kinked, cracked spark plug wire will ground prematurely and cause missing as in your case. Get it checked.
Cheers!
VJLeave a comment:
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Originally posted by philip.gunner View Post
I think the grommet cannot be at fault, it can perhaps be the spark plug wire itself is cracked or kinked that's leaking spark and grounding, hence the missing. Check and replace your entire spark plug coil wire from the ignition coil to the spark plug cap, and make sure the spark plug cap is tightened properly to the the wire, a loose, kinked, cracked spark plug wire will ground prematurely and cause missing as in your case. Get it checked.
Cheers!
VJLeave a comment:
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The hiccup was happening after bike had run for a few kms.Originally posted by B7ACKTHORN View Post
Couple of days back the ASC replaced the oil pressure sensor and the spark plug grommet. The grommet resolved the hiccup and the tick sound issue.
The idle stepper motor was also replaced before changing the grommet. After changing the stepper motor the RPM drop (hiccup) was not so noticeable but the tick sound had remained. Grommet solved the tick sound. Pressure sensor resolved the alarm.
A couple of weeks back I had replaced the spark plug, so maybe the grommet got damaged or something. I don't know what is the function of the grommet so I cannot logically reason if the tick sound was due to it or not.Leave a comment:
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Is this hiccup happening at certain start cases? Meaning, does it happen also during a a cold start? Check your oil pressure sensor switch if you have low oil pressure reading, it can perhaps be faulty, or sometimes it can be right, as oil starvation due to clogged lines is also a possibility. How old is the fuel in your motorcycle? Was it parked for long?Originally posted by philip.gunner View Post
Cheers!
VJLast edited by B7ACKTHORN; 08-29-2021, 08:18 PM.Leave a comment:
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My 2016 Duke 200 has run for 83500kms.
I'm getting low oil pressure for several weeks now. Oil level appears fine. Have to visit ASC.
But since yesterday I'm getting some tick sound (like a relay activating) when the bike is idling. The engine rev kind of hiccups for a moment when this tick sound comes. You can hear the recording here https://soundcloud.com/philip-abreu/engine . The hiccup and tick sound is at 3 second mark.
What is this hiccup and the sound?Leave a comment:
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Rust on handlebars? I would suggest use Diesel and start scrubbing with Scotchbrite mildly and see if it helps, diesel a heavy oil not only removes but also lubricates the part being brushed off, start off with this.Originally posted by Omkar Santosh Naik View Post
Cheers!
VJ
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Is there any solution to get rid of or prevent the rust/oxidation spots that form on the handlebar?Leave a comment:
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the brake pads were washed/cleaned with soapy water before taking the pictures, and put away in my parts bin.
bike has been ridden in the city for around 100km, bite is still sharp and no issues so far. the pads din't need any time to 'bed in'. will do some testing at higher speeds on the highways and some dirt roads to see if the brake feel/bite fades on continuous use.Leave a comment:
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Junkin Jumpers! 70% brake material left after seven years of riding, what stuff your brake pad material were made of, meteorite?
And are those old brake pads in the image, they still shimmer like brand new with absolutely no brake dust and glaze whatsoever. Too good to be true, Stumped beyond words to say the least! Anyway, definitely your pads should be given to Bajaj for R&D. 
Ride safe!
Cheers!
VJ
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