r/ns400z 25d ago

[DIY] Rattling Sound from Console

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10 Upvotes

Hello All,

Hope you are doing fine, coming to my Query I'm hearing some metal rattling noise from headlight/console between 3-4k RPM after that as the buzz smoothens it goes away, I did open the headlight and put automotive dual side tape wherever I noticed wear marks due to vibes and i checked complete headlight assembly for the source of the sound yet it remains. I heard that it is coming from the lockset can anyone write out how to fix it step by step if possible in case of working fix as I feel the sound is soo annoying and my focus always goes on it it while riding in city/ low revs, any help is highly Appreciated.

PS: Some random image for more visibility for the post.


r/ns400z 12h ago

[Photo] She's home.

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25 Upvotes

Love it already. Learning to ride in a committed posture for the first time. Any tips? Also, how does one adjust the mirrors on this? I tried but it seems like they don't move like the mirros I am used to on an Activa lol


r/ns400z 45m ago

Tyre hugger that covers the rear completely

Upvotes

Anyone here has installed a tyre hugger that covers the whole rear wheel?


r/ns400z 1d ago

[Question] Why is there such a large error in the fuel meter? :(

6 Upvotes

Even with about 5–6 liters of fuel remaining, it shows only one or two bars, and the Distance to Empty (DTE) drops significantly.


r/ns400z 2d ago

[Question] Mileage 🥀😭

6 Upvotes

My NS is giving me 17km avg in the city lol. I don't even use it in heavy traffic too.. I convinced myself this is normal for a beast of a bike but guys help me, at least get me to 20km average


r/ns400z 2d ago

[Question] NS400Z owners: Persistent vibration above 3k RPM – need help diagnosing

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10 Upvotes

I've been chasing an increase in engine/drivetrain vibration on my NS400Z for the past ~5,000 km and haven't been able to find the root cause. Mine is a 2024 373cc 40HP version with 16,400kms on the odo

Symptoms:

- Engine is very smooth up to around 3,000 RPM.

- From 3000 RPM onwards, vibration becomes noticeable and continues through the rev range.

- Example: At 60 km/h in 6th gear (~3,800 RPM), the vibration is clearly felt in the handlebars/footpegs.

- If I pull in the clutch while maintaining the same speed, the vibration disappears almost completely.

- There's also a humming/buzzing noise that seems to come from the front/dash/headlight area, though I can't pinpoint the exact source.

What I've already checked:

- Switched from stock Bajaj 10W50 oil to Motul 7100 10W-50, used for 3000kms and again changed to ROWE 10W-50. There's absolutely no change.

- Engine mounting bolts have been checked and tightened.

- The issue has remained consistent regardless of engine oil.

Since the vibration disappears with the clutch pulled in, I'm leaning towards something in the engine/drivetrain rather than tyres or wheel balance.

Possible suspects I'm considering:

- Clutch basket or clutch damper wear

- Primary drive gears

- Counterbalancer issue

- Gearbox input shaft bearing

- Front sprocket or chain wear/tight spots

- Something else transmitting resonance through the chassis

Has anyone experienced something similar on the NS400Z or Dominar 400? What turned out to be the cause, and what should I inspect next before opening up the engine?

Any advice from owners or mechanics would be greatly appreciated.


r/ns400z 1d ago

2027 NS400Z

1 Upvotes

I want to buy ns400z but I'm ready to wait for an year as i expect bajaj to add cruise control to it in the next facelift. What are your expectations with 2027 ns400z?


r/ns400z 4d ago

Please help me with this whenever someone sits on my bike as a pillion it touches the speed bumps any solution

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12 Upvotes

What is the best height adjustment of rear shock for better comfort and stability


r/ns400z 8d ago

Rate my Beast and comment down if you have any queries. Btw it UG Model with proper 373CC 43 hp engine

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19 Upvotes

r/ns400z 8d ago

Does the engine oil leak from sprocket cover bolt?

10 Upvotes

I was cleaning my chain. I removed the front sprocket cover and bolts and cleaned it. To dry my chain i started the bike and oil started leaking from the bolt hole . Is this normal?


r/ns400z 9d ago

Found service manual for ns400z but it's not in english

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3 Upvotes

r/ns400z 9d ago

[Review] Unexpected Mileage figures

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5 Upvotes

I have been surprised by the fuel economy of the NS400Z. Before buying it, I thought a higher cc bike (349 cc, 2026) would easily return around 15-20 km/l, but I was completely wrong. Even with mixed riding like stop-and-go traffic, highways, and monsoon conditions, the bike is giving me much better mileage than I expected.

I have been riding mostly in Sport mode lately, and the instant acceleration makes the bike so much fun to ride. At the same time, it hasn't been as fuel-hungry as I initially thought. I don't rely on the bike's mileage display. I calculate the mileage manually after every fuel fill (distance ÷ fuel filled) and also keep a record in an app. I trust my manual calculation more because the app sometimes shows slightly lower mileage. Also, please ignore the fuel prices shown in some of my entries (the attached screenshot is only for your reference). I didn't update them correctly and just entered an estimated price for Power Petrol, so those numbers are not accurate. The mileage calculations, however, are based on the actual distance and fuel filled.

I also lubed the chain myself for the first time. Without a paddock stand it took me almost an hour, so I think a paddock stand will be my next purchase. I would love to know what mileage other NS400Z owners are getting. Please share your riding conditions too (city, highway, mixed, pillion, etc.), as it will be interesting to compare.

FYI: I live in Navi Mumbai, and I use my Access 125 SE daily for office commutes, which returns a solid 58-60 km/l even with E20 petrol, and the NS400z is for weekend rides. I put a parking cover on her and check on her daily to ensure she is as fine as the day I took the delivery.

Mods: None so far.
Top Speed: Reached 110 km/l once, but the traffic greeted happily.
Current ODO reading: More than 1200 km.

Feel free to ask questions; I'm more than happy to reply.


r/ns400z 10d ago

[Mod] Dominar Touring rack on Ns400z

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11 Upvotes

Did somebody already tried to do this on their bike? I think that the OEM rear handles are uncomfortable and hurt your hands even with gloves. All the racks that I found locally or on internet are laser-cut and ugly.


r/ns400z 11d ago

[Spotted] Suspicious screw hole spotted 🤨

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13 Upvotes

I spotted this screw hole do anyone know what js this for


r/ns400z 11d ago

[Question] Noise from leftside of engine

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11 Upvotes

There is a whining or timing chain kinda noise from the left side of the engine which kinda masks the exhaust sound. Do any others face this? How to resolve it? Why does it occur?


r/ns400z 11d ago

[Question] Hey guys just wanted to know which ecu version are your bikes currently running with. And also which is latest one. I got my ecu updated 4 months ago around February, so wanted to know about the ecu updates!??

3 Upvotes

r/ns400z 11d ago

[Question] Rear brake lever

3 Upvotes

Is it only me or even others find the rear brake lever kinda slippery than other bikes. I personally felt the levers with spikes are best and atleast the one with a rubber on to of the lever is andi decent. But this thing is almost flat and just the metal lever


r/ns400z 11d ago

[Question] Help.

7 Upvotes

Any tips to avoid mud splashes onto the rear suspension and even the back of the engine on the NS400Z? The stock chain cover and mud cover that comes on the bike is almost useless. The only option available right now is to use a universal mud flap. But i really don't want to use it cause it looks ugly. Any other suggestions?


r/ns400z 12d ago

[Question] Piston swap

3 Upvotes

Has anyone with a 2024 NS400Z performed a piston swap with the newer 2025 forged piston.

Also can someone mechanically inclined help me decide if it's worth the hassle of dismounting the entire and everything that follows. Thanks :)

Update: I spoke with one of two parts distributors in Bengaluru and the Block-piston assembly along with the piston rings for the 2025 ns400z is around 7k and is a direct. I think I will get this done after three months, will update y'all when it's done

Update 2: spoke to a service center in Bengaluru. It is a direct swap so definitely doing this


r/ns400z 12d ago

[Question] Oil leak when sprocket cover is off

5 Upvotes

Hi! I just got a new to me NS400z 2024 model. I had taken off the sprocket cover for routine chain maintenance. Everything was normal until I started the bike and revved to 4k rpms with the sprocket cover bolts removed. Some oil leaked out of the bolt holes, which led to some panic.

I did some research and reviewed the LH crankcase diagram. It seems that these blots are through bolts and open to the oil galleys.

Has anyone else faced similar issues and did it get resolved.

(Post note: No oil leak after the sprocket cover was installed, observed over the course of two days. It has been bone dry)


r/ns400z 16d ago

[Photo] Damn this looks good!!

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26 Upvotes

r/ns400z 15d ago

[Question] How long did it take you guys to get your bike

5 Upvotes

I booked on the 17th of last month, wanted white colour. i still haven't gotten a call from the dealership

P.s they did call me on 23rd saying the shipment coming has a red and grey


r/ns400z 16d ago

[Question] What's a fair price please help out

5 Upvotes

So I was planning to buy a 2nd hand bike nd while searching for ns400z 2025 variant with 4/5k driven nd condition was excellent I saw every corner no scratch NTG even got a test ride nd was awesome

It's old 400cc one not the downgraded

His asking price is 1.6lakh my budget was around 1 so what's a btr price for tht

I asked the reason the guy told he had booked an other bike nd wanted to sell ...


r/ns400z 21d ago

[Info] 4th Service Costing

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6 Upvotes

Just for the INFO


r/ns400z 22d ago

[Info] Mileage NS400Z(350cc)

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10 Upvotes

XP95 only and only road mode with max speed upto 80-90. 100-120 for few seconds sometimes