You are using GS as a racing bike, which needs overhauling after each event which you are not doing and as a result, the life of your bike will be very short.

While going on 120 kmh, the bike gradually lost its power and slowed down and was able to achieve the speed again after a while. This means there was problem in the carburetion of fuel. As it regained the speed, the reason is that there is a leak (earthing / grounding) in the carburettor plug adapter and hence enough power was not supplied to the plug. So, replace the adapter. This will solve the issue.

The smell was from the burning of the adapter due to the heat produced by the leak.

After replacing the adapter an overall checking of the bike, as mentioned by Mach50, will be essential. Do it at the earliest possible.

If 120 kmh is your usual speed, change to fully synthetic oil and iridium sparkplug even though both of these cannot extend the life of the bike.

Good luck.

Happy Pongal to all

Ineeya Pongal Naal Vazhthukkal (Happy Pongal).

Thank you and Wish you the Same!!

Unicorn is good at cornering because of the mono shocks.

In highway GS is good it all depends on how one drives and shifts the gear to gain speed faster

@ vishnu

We are comparing current format calender year with mayan and hindu calender "kaliyuga" system

The current calender format doesn't calculated zero as their is no value for zero while the currently following cristian calander system was set.

As value for zero was their in mayan and hindu calender system.

And you know when and who derived the value for zero.

Any let's drive and enjoy your ride (life) don't bother about where the road ends

Happy pongal to all

wishing everyone a happy and joyful pongal

MILEAGE CAN TEST on 14/1/2011

HMMM!!!!!!
Relived little bit after done the can test,I am very thankful to SVC(sub dealer) person ,who suffering from fever and cold,who sit in pillion with can...
First we did 200ml test, time is 7pm,so some traffic is there in the road ,and high wind blowing opposite side ...since it s a highway he told me to ride till this 200ml dries....Result due to traffic(so many gear change and high wind) got 10.7 for 200ml means 53.5kmpl...then he take 100ml and tell me to drive ,to the surprise ,there is no traffic and high wind blow back side..i got 6.5 for 100 ml.....
He told me that due to tank design(curved and lot of hidden area) GS is prone to false reserve So you won't get exact mileage calculation using R-R method (I have in mind lot of guys still get consistent mileage in R-R method then me and few why???) did'nt asked it ,bcos he is not from SUZUKI factory just ordinary mech(poor chap his salary is Rs3500 only)
More important he show is when i told even in tank full i get choking problem (but while i ride with tube and CAN for mileage testing,i feel it was not there)...He showed the pipe from tank to carburetor is bent due to long length ,He cut it and put it straightened the tube and tell me the fuel flow is restricted thru this bend...in pipe ..
But there is some sound coming from engine after we ride 10km, he told its there in all GS (which i am not sure)
MY pondy SC told me after pongal we arrange a service CAMP and let me wait for it ...Hope MY GS giving the above tested mileage
PS---i rode in mileage test within 4K RPM

Here's the RPM reading:
When I was at 120: 9k in 6th gear
when the speed was dropping, it went till 7k, then I shifted the gear down to 5 and still the rpm level kept moving backward (to my surprise the bike was above 90kmph in 5th gear and 6k rpm, which might sound kind of absurd)
so shifted one more gear down to 4th, and then the speed rose to 105kmph with RPM meter peaking at 11k
and then with a shift up I was able to maintain constant speed of 100kmph till I reached college and didn't put it in 6th gear(I thought might be gear was down)

And how am I gonna check the discrepencies in the piston?? should I open every screw present in the engine to open it and see whats inside??

I guess I don't have any other option but to follow your advice since I am losing faith in the reliability of this second hand bike, till I'll go through everything this bike contains, myself.....


thanks for the good luck buddy
I have already switched to fully synthetic oil and now will be buying iridium sparkplug as soon as I'll find out where to find one in our small city...
even though I don't think it can be a problem of overheating in these chilling winter mornings, but still the incident reminded me of the Nintendo bike game named "Excite Bike" in which when the bike was driven fast, it soon got over heated and then the biker will have to stop for some time till the bike temp is upto normal......

Sir wishing you the Same

Also guys, I found out one more interesting fact about this bike, which I am not that much sure about as its a bit subjective

The sound of the engine is actually louder for others than the ones who are driving the bike, I mean, when you are driving the bike, you'll hear less noise from the bike, but when someone else is riding the bike and you are standing somewhat about 100m away from the bike, the sound of the bike will be like roaring thunder which I came to know when I gave the bike for test drive to one of my buddies....

Do listen and let me know if its just me or is this thing is actually for real....

@Gagan0123: After going through the rpm indications.........I totally agree with what Vishnukmd had to suggest about how your bike lost power......that is there was problem in the carburetion of fuel. As it regained the speed, the reason is that there is a leak (earthing / grounding) in the carburettor plug adapter and hence enough power was not supplied to the plug. So, replace the adapter. .........which I usually call faulting of electrical conductance at high rpms.......for this reason many people uses Power Cables to fire their Spark plugs,whose dual conductance ability enables more than usual charge transfer...........and fault in electrical circuitry is more evident from the fact that your speedo kept showing 90kmph at 5K or 6K rpms.

Hence the following things would be very helpful for you and your bike in this case:
1.Replace the Carburettor Plug Adapter as advised by Vishnukmd.
2.Use an original Spitfire power cable to power your spark plug.
3.Replace the stock spark plug CPR7HSA with Irridium grade CR7HIX.
4.Go for fully synthetic grade oil and I recommend : Motul 300V grade 15W50.

These things would enable your bike to sustain speeds of 120kph on the speedo without any immediate faults.

Honestly speaking I had registered speeds ranging from 105kmph to 127kmph for many hours together.......the cruise speed of my GS150R on highways is usually around 110 kmph.After these events,even I am confident that I would go for all the above high rpm modifications soon too(but not my adapter,its still not fried ). .........eventhough I havent faced any problems till now,but prevention is always better than cure.

If you are concerned about the fact that your bike is much more noise than usual,then take it to Service Centre,see what nuts and bolts and engine mounts are loose,tighten them.Get your piston checked for O ring leakages or abrassion over there only......you could have checked all these at your trusted mechanic's but honestly speaking you have to go to an authorised Suzuki SVC now for new adapter and do the checkings too.

@Vishnukmd:Hence it can be well understood,that Suzuki buyers are always looking for tough and fast undiluted performance.We need liquid cooling,forged pistons and high revving bike,so that every time it does not feels getting pushed like a racing bike which needs immediate overhaul after every speed runs. But with the Shogun and Fiero,Suzuki then had shown us,that its engines can endure endlessly............so I do not fear pushing the GS150R to extremes too.....and GS150R hasn't disappointed me till date,like a true Suzuki it keeps enduring.

Is it the real GSR150

Hi xBhp guys owning GSR150, today I had a first hand view of highway performance of your bike..it was simply outstanding

Since this is my first post here;
About me: Am an entrepreneur and plan to buy a bike of 75000 approx. for street trips (to please better half) and occasional highway trips...currently I own a Stunner 125, at other times for work, I drive my 3yr workhorse, Suzuki Swift

Yesterday I was driving through the Chennai bypass to Tambaram and I saw a very interesting drag test going on around 3pm >

There was a big dusty black GSR150 with Xbhp & ABB permit stickers on mudguard, a RTR180 white, a pulsar200 and sparkling blue Fazer

After the Toll booth I saw the Fazer and RTR180 checking out at high speed.. Around the bend a pulsar200 joined this drag. In the distance ahead a GSR150 was going alone..

I happen to see the RTR180 guy, who was ahead of the slow fazer showing some sign language to GSR guy as he passed by...

What happened then was entertainment to me as all 4 bikers (strangers for sure) decided to test their bike limits

It was a straight flat NH with a few trucks scattered...

The GSR guy wearing a green backpack and puma shoes, started overtaking the Fazer, which was buzzing with rider bent low on tank, then the Pulsar200...

At 125 kmph on my swift ODO this is what i noticed:

1. The RTR180 backend seemed to be vibrating, or the driver was having wind turbulence, but he was rather short
2. The Fazer guy was being left behind though his head seemed buried on tank, and Pulsar was giving him company

But the GSR guy rock steady, and his driving stance was normal not stooped and he was tall...
Amazingly the GSR was catching up with RTR guy

Then my swift speedo shows 130 km/h
The GSR & RTR are neck and neck...The RTR180 backend vibrating like as if his rear tyre is misaligned, but the GSR, not a single twitch and then........

This 150cc GSR overtakes the 180cc RTR without any sign of nervousness, while I had to overtake the fazer to catch up with these two guys...Pulsar was behind me and I felt like being escorted

I saw the GSR guy give a salute to the RTR180 guy, who acknowledged with a finger

Within another few secs, the GSR was touching 133 (based on my swift speedo) and unstable RTR was trying to hang-on literally...Pulsar was still behind me, whereas Fazer was almost a good 100m behind.

The out of nowhere a black sportbike just whoosed past all of us...he got to be doing atleast a good 180kmph. And that ended their contest

The GSR guy started slowing down, I knew he was chuckling to himself at the RTR guy backfire, and I slowed to check what bike it was-Did not know it was a Suzuki GSR150 till then -as he starting slowing down to a 100, while the fazer & pulsar also stole a look at the bike as they continued their drag...

At 80 kmph, I rolled down my passenger window and gave him a chutputa hand sign, he again acknowledged with his salute...and I sped off.

So pls:
1. This Xbhp guy, can you please tell me about your bike...was it a factory GSR150 or one with modifications

2. I had booked a dazzler based on my friends suggestion and never knew about your bike...Today I am highly impressed...The only think my friend knew about your bike was that it is a 150cc Pulsar clone...

3. Frankly I never liked the dazzler puny look, and went for it as I trust Jap engg. compared to our native tech...
Today I test drove GSR150 and it just fell like a complete bike...but the silencer of that guy GSR was a bit different and seemed to had a flat chrome plate unlike the half cut what I tested at SMK Porur

So, I am ready to go for GSR150 if you could educate me about the issues faced with your bike and why its not selling much or is not marketed. Even my friend upon testing GSR was impressed and considers it better than all the bikes he has ever driven...I am 6" guy weighing a healthy 92 kgs
I trust Suzuki engine in cars...I have a 1990 Maruti 800, had an esteem that crashed, and now have a Swift VXI All were money well spent...
Also that xbhp guy, you drive pretty well

WoW what a testimony to GS ? Its really shocking that GS smoked RTR 180. Many still dont know about Suzuki bikes, their marketing strategy was a big flop. GS should have hit Indian market the same time Honda entered 150 cc with Unicorn(2004). Japanese dont believe in marketing, they believe if their product is good customer will buy.

The GS you saw is 2009 model which have complete silencer cover and 2010 have sporty one with a slit.

Lets wait who that dragster GSpian is?

!!!!!!

First of all I request the GSpian who did such a stint to identify himself.......please .......he can only confirm what actually happened.

Even I haven't registered 133kmph ever,I only once clocked 132kmph but only for a fraction of a second.But smoking an RTR180 is not an easy thing that too with a shorter,lighter rider on the RTR!!!!

It is only possible on the stock GS150R,if the GSR rider slipstreams the faster bike,slots into the sixth gear(absent on any other bike in the above mentioned drag,save the sportsbike ) and widely opens throttle........which I often do and can take out even the mammoth Pulsar220F

If you are really telling the truth without a single piece of exaggeration,then it is a very interesting case in certain ways.........
but you can be confident about the GS150R totally,it is a complete bike with mileage higher than all 150cc available in the market,build to last quality,totally refined and cruises like breeze at high speeds on highways.It has few niggles which all other bikes have too

Also please identify,which kind of silencer among these you saw.......it will help,

@Turbo_Biker STI: That's a great first post, and sure made me smile being a GS owner This is surely one bike that is underestimated by buyers, and more so by parent company. As said above, you must have seen the 2009 version with bigger chrome part on the silencer. What color was the bike? If it was Orange/Blue, did it have the same color on the back part, or was it the same all over the bike? New bikes have back part in black, where old version has same color all over.