Re: Pulsar 200 NS

You guys might want to see this.

It's richer towards anti-clockwise, and leaner towards clockwise.

I had posted about the engine-hiccups and sudden drop in mileage (after first service) problems in my bike about a few pages back.

Here is the update on the problem: Before tuning, the screw was set at 3 turns from the leanest. I initially set the screw at 3.5 turns. On riding immediately after tuning, I felt that the engine hiccups were gone. But later when I rode the next day morning, the cold engine revealed that the hiccups hadn't gone. I mean, it was reduced considerably but not entirely gone, and I could notice the lag only if I keenly observed. Then I kept the screw at 3.75 turns. Now the bike is absolutely fine. It's revving freely across the entire range. I did a ride to Warangal from Hyderabad, the trip was about 450 km, and I went and came back in a single tank-full (I didn't hit reserve till I reached home). I guess that should roughly translate in to 44-45 kmpl.
@Cleaner: You had asked about spark plug color I think. I checked the color of it, it was darkish brown. I think that should be fine.
@sam_shendre: Yeah, that's what I did.

PS: My bike's CO reading was 0.44 before tuning, now it is 0.99.
PPS: Post no: 6529 by PSR ji in this ownership thread will be of additional knowledge on AFR and carbs.

Re: Pulsar 200 NS

depends on the usage and brand/model.

it is an issue with braking style. practice staged/progressive braking.

Re: Pulsar 200 NS

@kilometerkiller sorry, I got confused. I can't claim that I did not know the correct way to turn since I posted the correct method earlier in another thread. I think I was just not paying attention. Higher CO% means rich air fuel ratio. You can slightly turn the screw clockwise to decrease the CO% or lean it when you go to get a PUC, then enrich it again.

Could you take a picture of your carb screws? I will edit it showing the right way to turn the screw.

BTW 3.5 turn is just a point to start the tune, you still have to fine tune it, the fine tuning is different on every bike and doing the fine tuning requires some experience.

EDIT: Link to said post http://www.xbhp.com/talkies/help-me/...ml#post1018933

Re: Pulsar 200 NS

not much man, should be under Rs 200-300... even cheaper i guess.

I couldve taken one last night but my camera is such a baddie.. 2mp only.

Guys got a query from experts.. Even though 200NS has a terrific engine, what am i looking at in a few thousand Kms if I keep doing aggressive 1st gear roll on to do clutch wheelies. Just worn our Clutch plates right ? I'm finding it quite easy now and I cant resist. I found wheelies really arent as tough as I used to think. With the correct method front wheel really keeps going up until I apply rear brake. Being careful yes yes.

Re: Pulsar 200 NS

[MENTION=61791]Cleaner[/MENTION]
Your latest post suggest me that I was wrong earlier. Kindly help me out. Not able to find the correct posts about AFR in this thread.

Sent from my Nexus 4 using xBhp Connect mobile app

Re: Pulsar 200 NS

hi guys my pulsar 200 ns is just some days old and has only 120 kms on the odo. i am a college student and today morning as usual i went to my college and parked the bike. while returning, i found that the bike hesitated to move. and while i rode the bike was seriously lacking the power. and when i reached my destination i applied center stand and tried to rotate the rear tyre in neutral it but it didnt. then what i found was the rear brake disc including the rear brake calipers were literally red hot. then worryingly i sprayed water in the rear brake region and let them cool for few minutes .. after that i tried to rotate the rear tyre again, and thankfully the problem was solved .then again rode the bike and it returned to its normal shape (the problem was solved)..
what is the reason behind this guys ?? is there something that i have to worry ??

P.S. went to a local mechanic to lube the chain today and while doing so he revved my bike in first gear to about 7000 to 8000 rpm for about 2 to 3 seconds ..
..my bike is in its run in period and max rpm i have taken it to is around 4800 ..i am worried !! if will this (he revving my bike to about 7000 to 8000 rpm )has done some sort of harm to my engine ?? please spend some portion of your valuable time to answer my questions folks !

Re: Pulsar 200 NS

2-3 seconds of high revving is not bad for engine. Don't redline the engine during run in period & try to fluctuate the rpm as much as possible with all the gears being used. I think you better take the bike to SVC

Sent from my Nexus 4 using xBhp Connect mobile app

Re: Pulsar 200 NS

nothing to worry about the 7rpm thing ,once in a while you need to rev past 7rpm , infact i had redline no of time when my bike was 400kms old and no problem till now..actually it good to rev till 7~8 rpm one in a while..btw about the rear disc jamming contact the BASS about that, theyll remove the caliper rhen clean and grease it then again if the problem repeats theyll take further stteps by replacing caliper or disc one thats faulty.

Re: Pulsar 200 NS

[MENTION=67107]shreezan[/MENTION]
oh lol, no harm done.. relax. but why take your baby to a local mechanic just for lubing the chain ? and even that on a brand new bike which has run only 120 kms. absolutely wasnt necessary in the first place. and if I was you, I wouldnt have let mechanic even get his hands on the throttle. xD

Re: Pulsar 200 NS

Ride your bike for 15 minutes, come home and put it on the center stand (side stand will work too if you don't have the center stand), idle the bike and raise the RPM to about 3000 rpm by using the idle set screw (This step is not really needed since we know the approximate turns already), tighten the AFR screw slowly till you feel its tight, don't tighten it, just stop when you feel resistance. Now unscrew the screw 3 and a half turn, unscrew 1/8th of a turn now very slowly, slightly unscrewing the AFR screw will do the trick. The sweet spot is usually between 3.5 turns to 3.75 turns.
Now lower the idle RPM if you have made it higher earlier to around 1400 RPM.

All done, you should feel smooth and rev happy engine now.


I'm not an expert by any means but rule of the thumb says if you wheelie, your clutch plates take the heat and if you perform stoppies your front brake gives up early. In ideal conditions nothing else should happen but it's an engine and lie other mechanical parts, it could get damaged even if you are riding like a old chap on a Splendor. Oh, BTW the forks may need overhaul and the springs will be doomed sooner but that's not related to engine.

I'd really appreciate it if you go out now and take a few photos of the low and high beam for me.



Go to service center and get the brake assembly replaced ASAP, the brake caliper pistons are not releasing the rotor when you remove pressure from rear brake pedal. It could get you seriously harmed or even killed. Also check the position of brake lever, you could have been depressing the brake pedal without knowing since it's a new bike. BTW never get anything done at a local mechanic and never ever put water over hot things to cool them, it will warp the metal. Instead let them cool naturally.

Anyway, no harm was done to your bike by revving it to like 7k RPM

Re: Pulsar 200 NS

hmm I see. Guess i'll continue practicing then.. wheelies are very difficult to resist xD #YOLO

here are your pics, my camera is terrible especially in darkness

Re: Pulsar 200 NS

Thanks for the pictures, the first two are low beam, right?

If you intend to wheelie a lot you may wanna invest in a crash cage, you wear proper riding gears while wheeling I gather because YOLO.

Re: Pulsar 200 NS

Visited and got the sensor replaced, tht fixed the problem.

Re: Pulsar 200 NS

1st - low beam
2nd - high beam
3rd - low beam
4th - high beam
the 1st low beam pic appears brighter than the 2nd low beam pic because it was taken after revving the engine abit.

Re: Pulsar 200 NS

Good to hear that, hope you got it changed under warranty free of cost.


Thanks for clarification, BTW does the headlamp get brighter on 200NS when you rev up the engine? I thought it had DC lighting.