Check the rocker of the valves they make a sound like tappet but while riding and not at idle, if the kit kit sound is there which you may notice when on 3rd gear and at 40-60 kmph then the valve rockers are your problem, the spark plug cables if they are supplying the amps correctly to the spark plugs,
Fuel filter and tubes, air intake valves and carb jet. Change the accelerator cable with that of 2017 NS.
On the dyno the bike doesn't comes around street riding conditions so it will perform well. On street it is stop and go, down shift and up and down again.
Always use semi synthetic blend on Bajaj 200 series, Indian engines are not made to handle full synthetic viscosity. Use 15w20 Motul, Shell, Repsol (if you can find).
The acceleration is due to bad installation of clutch assembly. When you get the clutch assembly changed, ensure you change the entire assembly including the hub. Get a duke 200 2016 or RS clutch assembly installed with standard AS200 clutch cable, keep your hands off that clutch lever. Since you have recently have the clutch changed do check if you can to notice if there are any scratches on the pressure plates and are the clutch plates thick and have compression teeth visible. The springs play an important role and it is never assured that the ASC will do a great job in getting the valve clearance right.
Get a good mechanic outside who works on duke, CBR, RS and other similar bikes and not just a casual nut tighter but a thorough engine overhauler.
AS is an amazing bike but, it needs special care and attention when it comes to maintenance.
Also, I did not read anything about wheel bearings and sprocket bearing being changed which you should get changed at 8 to 10k (depending on riding conditions).

My motorcycling has hit a bit of a roadblock (hoping it's just that) due to this issue in my AS200 (2015).

What happened -

Routine service is due about a month ago. Motorcycle goes in to the ASC, gets serviced as usual and the PM Kit is replaced (spark plugs, air filter etc.). While returning back home, I sense a jerkiness in the way the bike is moving past the 60kmph (4000 rpm) mark. If I tried to push the bike beyond that, the jerkiness (lack of pickup and acceleration) increases even when the throttle opened is more than sufficient. The only difference this time in the service was the use of Motul 7100 10w50 instead of 20w50 owing to a lack of availability of the latter.

A line to describe this 'jerkiness' - Very similar to how bike loses acceleration when about to hit 'Reserve'.

Here's how things have panned out since then (in chronological order) -

1) A week later (since Mon-Fri are working), went back to the ASC, and the mechanic says the new spark plugs are faulty and replaces them again.

2) Jerkiness still present, so I take a leave on Tue and head back to the ASC. This time, I am told that the clutch set (clutch plates and pressure plates) needs replacing. I am not sure about it, but since the bike is touching 33k on the odo, I give the ASC the benefit of the doubt and go ahead with it. Slight improvement in acceleration from the standstill, but jerkiness still there. Gearshifts have been hard since then, and as per the ASC, it's just clutch cable adjustment.

3) Head back to the ASC for the 3rd time (in 2 weeks), and I spoke to the Service GM this time, only to be reassured that it will be rectified. The plugs and air filter are checked, and the tappet is adjusted. We even put the bike on a dyno, and it goes easily to 108-110 kmph (as indicated), but the moment it comes on the road, it is the same story all over again.

4) Being the hopeless optimist I am, I went to Karol Bagh yesterday, got the carb opened and cleaned, and put a K&N air filter (stock replacement type) hoping the issue might get addressed, but nothing doing.

During all this, have got the AFR properly set to make sure it is not down to that. So essentially,

- The spark plugs have been changed and checked
- The air filter upgraded
- The tappet adjusted
- The carb cleaned
- The AFR has been set
- The clutch plates have been changed

In spite of all this, the motorcycle is running sluggish, so much so I have to let the Splendors and Shines of the world pass as I would anyways get skinned by them.

All my efforts to get it rectified have been in vain, and all this without being able to detect or pinpoint the source of the issue.

Is it possible that there might be a leak in one of the valves which is causing all this, and is that even a thing in the NS and AS engines?

I am worried my motorcycle has turned into a lemon, and might not get back to what it was.

Any guidance by the forum members will be hugely appreciated.

That's a lot of insightful advice, Hunterkol; thank you. The chain set got changed around 18k (which is when the sprocket bearings were looked at). The bike hasn't shown any instances of wobbling or losing line, but will get the wheel bearings looked at nevertheless.

- Haven't heard the kit-kit sound, and have got the tappet adjusted, but neither the ASC mechanic nor the second one pointed it out. The thing to note here, the valves, both the times, were adjusted on a fairly warmed up engine and not a cold one. That might be one of the issues.

- The clutch assembly I got from the ASC is that of Duke 200, so that's sorted. However, upon inspection, the new clutch cable turned out to be the issue. From the looks of it, it wasn't greased as properly as it should have been, and the wired passage in which it is inserted also had dirt. Got it cleaned, greased and checked for play. The acceleration now seems fine, but because of the power loss issue makes it difficult for me to be confident about it.

- I'll switch to a semi-synthetic blend the next time, but I don't really see it to be a concern as many forum members use Motul FS 7100 20w50 in their Pulsar 200NS and 200AS.

- The main problem I am facing right now is the power loss. If I had to be absolutely specific, it starts at the 4800-5200 rpm mark when the bike starts running out of breath post 71 kmph. From there, a little persistent throttling takes it up to 82kmph; at this point, the shuddering increases to quite an irksome level, and post that, it is the same story.

Whenever the mechanics check for the same, they accelerate the dear life out of the bike as if they have a death wish. I have patiently as well as assertively tried explaining them that gear ratios have to be more everyday-like to detect the issue, but they are too thick-headed to understand it, saying "bilkul sahi chal rahi hai. Maine 110 kmph tak baghai koi missing nahi hai".

Lastly, and this is to everyone in the thread, please do suggest a reliable mechanic in Noida/South Delhi areas which the bike can be taken to, because I am not at all eager to get the bike opened by every second mechanic who is less than proficient.

I guess there might be some electrical issue in your m/c. In my 2013 model NS(sold) similar thing happened. Fuse used to blow up reguarly and there was jerkiness in acceleration though. After a week of hit and trials, we came to know that the front brake switch was the main culprit. Even your issue might be because bad earthing.

Powerloss problem was with my bike also . Svc adjusted the timing but again same issue. Finally they agreed to change the head assembly and crankshaft . Now the engine is as smooth as new. If your bike is in warranty period force them to change the head or inspect the bike properly. Leave the bike in svc if they are unable to inspect or diagnose . Then they will definitely do it

I haven't faced any such issues, and both the brakes are working fine as I make it a point to get the brake pads changed and the discs cleaned every 5000 kms.


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I am thinking of doing exactly the same, but before that, I shall be putting a disgruntled mail to Bajaj Auto Customer Care to request them to have someone knowledgeable look it up.

The warranty on the bike's manual states 2 years/20000 kms (whichever comes first). It's an Aug 2015 buy, but I've clocked over 33K kms on it already thanks to the daily Noida-Gurgaon office commute.

I planned to do Leh-Ladakh in Aug this year but this issue has put it all in doubt at the moment. Shall keep you posted.

UPDATE - Have just drafted and sent the mail to Bajaj Auto Customer Service. Will wait for their update now.

Nothing to worry. Its on every bike

My motorcycling has hit a bit of a roadblock (hoping it's just that) due to this issue in my AS200 (2015).

What happened -

Routine service is due about a month ago. Motorcycle goes in to the ASC, gets serviced as usual and the PM Kit is replaced (spark plugs, air filter etc.). While returning back home, I sense a jerkiness in the way the bike is moving past the 60kmph (4000 rpm) mark. If I tried to push the bike beyond that, the jerkiness (lack of pickup and acceleration) increases even when the throttle opened is more than sufficient. The only difference this time in the service was the use of Motul 7100 10w50 instead of 20w50 owing to a lack of availability of the latter.

A line to describe this 'jerkiness' - Very similar to how bike loses acceleration when about to hit 'Reserve'.

Here's how things have panned out since then (in chronological order) -

1) A week later (since Mon-Fri are working), went back to the ASC, and the mechanic says the new spark plugs are faulty and replaces them again.

2) Jerkiness still present, so I take a leave on Tue and head back to the ASC. This time, I am told that the clutch set (clutch plates and pressure plates) needs replacing. I am not sure about it, but since the bike is touching 33k on the odo, I give the ASC the benefit of the doubt and go ahead with it. Slight improvement in acceleration from the standstill, but jerkiness still there. Gearshifts have been hard since then, and as per the ASC, it's just clutch cable adjustment.

3) Head back to the ASC for the 3rd time (in 2 weeks), and I spoke to the Service GM this time, only to be reassured that it will be rectified. The plugs and air filter are checked, and the tappet is adjusted. We even put the bike on a dyno, and it goes easily to 108-110 kmph (as indicated), but the moment it comes on the road, it is the same story all over again.

4) Being the hopeless optimist I am, I went to Karol Bagh yesterday, got the carb opened and cleaned, and put a K&N air filter (stock replacement type) hoping the issue might get addressed, but nothing doing.

During all this, have got the AFR properly set to make sure it is not down to that. So essentially,

- The spark plugs have been changed and checked
- The air filter upgraded
- The tappet adjusted
- The carb cleaned
- The AFR has been set
- The clutch plates have been changed

In spite of all this, the motorcycle is running sluggish, so much so I have to let the Splendors and Shines of the world pass as I would anyways get skinned by them.

All my efforts to get it rectified have been in vain, and all this without being able to detect or pinpoint the source of the issue.

Is it possible that there might be a leak in one of the valves which is causing all this, and is that even a thing in the NS and AS engines?

I am worried my motorcycle has turned into a lemon, and might not get back to what it was.

Any guidance by the forum members will be hugely appreciated.

Sir I was talking about front brake SWITCH which cause the tail lamp to glow when the brake is applied. In my case that SWITCH went bad and after disconecting the same, everything came back fine.

This is exactly my situation right now with 19.5K on the ODO, recently the spark plugs and airfilter changed in the last service which was done 2 weeks back, since then i feel like riding FZ series, no grunt and no pickup, its very sluggish at 3k - 7k RPM, usually i will catch up my friends duke at past 120 kmph, but now he seems to be 100 meters way ahead of me, that's when i noticed there is something problem with mine and i thought the chain might be too tight,

Took it to local bajaj mechanic and he suggest to check the clutch plate adjustment with the SVC itself, haven't went to SVC yet and on top of that, last week my gear shift spring was gone, now the lever won't pull up or go down when shifting, have to manually click the lever after shifting then only i can able to change to next gear, its been really annoying how the SVC work on our bike, and they say nowadays spares are not available and it will take more than a month for any replacement if the spares are not in stock within the SVC.

Once i faced an electronic issue when i was on a trip of 400 kms, the bike wont pass 50 kms and my RPM limit will blink at 4k RPM itself, it turns out there was a cable crunched in the fairing. it didn't showed up suddenly, it was a slight jerk at first and i was skeptical about the fuel but at last it doesn't let me rev over 4k RPM, check for any electrical issues.

Also struggling with the vibration for a long time, been adjusted the valves twice and still the vibration is increasing day by day, was fed up and planning to sell the bike, quality control and service are very bad making a good bike worse. Finding a good AS/NS mechanic is impossible. Everyone is half assed while checking the bike.

This forum has suggested a lot but the problem is no mechanic will hear what we say and never look the problem the way we discuss here, totally lost my hope in BAJAJ SVC.

@abhinav: Bro, I feel bad when a fellow rider brother is stuck with an issue. I went to SVC last was for my 2nd Service and discontinued when I found they fiddled with my carb. That was the day I screwed their happiness and said adios to Bajaj.
Coming to throttle loss, it is clearly combustion issue. I have mentioned for you to check spark plug hobs, coil and wire. Since it is around 4-6k mark when the issue persists, I feel it is one of the spark plugs or the power which is to go to the engine. Since you have installed K&N filter, have jets checked again after you get the hobs inspected. I am sure you must have tuned the carb to K&N specific requirements. Whenever you feel tension on the clutch, use the WD40 or just have the wire changed if possible.
My mechanic has advised following things if there is throttle loss:
1. Fuel line, fuel filter and fuel feeder pipe.
2. Valve rockers, valve and clearance (engine has to be little warm).
3. Clutch hub springs (engage and disengage).
4. Check the connection hob from air filter chamber to carb as well, minor thing but our rides have tightly packed components, loose or leaking connections cause problems.
5. Just check on warm engine when the bike is stationary on double stand, open the throttle more at a time and rip (when on double stand with engine running) the sound from the exhaust should be consistent and if there is a miss the problem is valve or wired hobs to spark plugs missing to ignite.
6. Adulterated fuel, try using high end fuel this time from (preferably) HP Fuel Station.

Do let me know what was the outcome.

Ride Safe !

Hello guys.
In my bike left side spark plug is not giving spark . Is the spark plug faulty or its some other electrical fault

When did you last changed it and used which company's?
Have bosch make, same model installed but have both left and right changed at the same time.
Second, the hob or cables may shot circuit as well. Have it checked first.

I appreciate your concern, dude. Will be heading to the SVC tomorrow as I haven't been able to locate a sound mechanic who can patiently diagnose the issue or even undertake the pain of checking the things the way I want. Shall keep you posted.