Re the bike:
a. That the chain keeps getting slack and needs to be tightened.
b. gear slippage while engaging gear # 6.

There are probably a few others, but having read few pages of this thread, these are the ones that caught my attention.

As far as dealership issues go, I fully understand that there can be some whose attitude might put people off from buying an otherwise fine machine. My comment was not meant to discredit the bike, but seek out 'reasonably friendly' dealers.

Having taken a test ride, I am quite impressed overall; it is just the niggling issues that are of concern.

It is the character of the bike more than an issue.
Are you aware of the fact that Karizma too has the same issue or character ???
The 225cc unit of Karizma is a square engine like that of GS150R, it has longer stroke than bore, loves torque and with its lengthy wheelbase often while accelerating hard chain tends to get slackened.

On my bike I have not adjusted the chain over two months now and it has became its character.I do not suffer for it, its acceleration and performance are praiseworthy.

Never felt it ever in the 10 months of my own bike,I do all kinds of gear shifting which helps acceleration beginning from clutchless shifts to redline shifts, had it been an issue I would have been the first to know.But since every person's riding style is not same........opinions do vary.

But,Yes few nips and ticks here and there would make GS150R the perfect machine.

And no bike is perfect for that matter,
Considering the CB Twister, I love its mileage but its performance is an issue and the way it handles corners too might been an issue.Which tells me that I cannot expect everything from something.

No bike comes without an issue my friend.But the positive points should be greater than its negative points.

Thanks for your insights on this thread

The chain loosening is a common issue with all new bikes, but in GS, a torque of 6.5 kgf*m only is applied to tighten the rear axle nut, which is not sufficient. A manual tightening will easily solve this problem.
I am using this bike for 15060 kms and have never experienced such an issue of gear slippage. If anyone experiences it, it may be due to the lack of experience or due to trying to shift gear at incorrect rpm.

a. That the chain keeps getting slack and needs to be tightened.

I did faced this issue but not much frequently but quit often some where 2 months once chain needs to be tighten but nowadays its not their, may be my bike chain got settled down or the 3 months once service is fixing it

b. gear slippage while engaging gear # 6.

I haven't faced if much frequently but yes it happens during the initial run in time and
I believe it may be caused by several factors one of it may be chain loose, or chain needs cleaning

During the last service back wheel sprocket bearing was changed after that my gear related issues are all fixed (earlier i got noise while shifting and getting neutral is very hard) and now its damn smooth and neutral is just simple.

The timing chain of our bike is provided with auto tensioner and no adjustment is required. What was the reason of adjusting it and was there any starting or running problem, compression loss, loss of pickup etc. etc.? Can you please elaborate the engine issues fixed by adjusting the timing chain?

From where did the mechanic get the original sprocket bearing and back wheel bearing and as he has opened the engine to adjust the timing chain, the necessary gaskets and packing seals as Suzuki is not selling spare parts to any local mechanic and what was the defect of the swing arm and what work was done on it and on the shock absorber and what was the reason for opening and cleaning the carburettor?

The back wheel sprocket bearing cannot be the reason for gear shifting problems.

Because this “experienced local mechanic who is not a Suzuki trained or well educated service engineer” claims that he has adjusted the timing chain for no reason, I think, has cheated you by his over smartness.

Since you don’t believe Suzuki mechanics, please ask any good mechanic about timing chain in general and GS’s timing chain in particular.

(Almost all vehicle manufacturers have decided to not sell important spare parts to local mechanics so as to get more work in their work shop. Maruti is an exception).

Chain tightening

I wanted to know what are the signs for a loose chain if i find any i will get it fixed as early as possible and is it necessary to keep tightening it at regular intervals???

earlier before the service he come with me for a test drive and showed me what are all the faults present and proves them one by one, moreover i know him personally as well as professionally for the past 6 years

he is not doing anything like oversmart as he took snaps of all the major troubleshooting done on his mobile and did shown them to me, he did asked me to hold his mobile to take a video snap while fixing on the unicorn and he said i dont want customer to go with a doubt in mind and if i say i have opened the engine then i should prove it to the customer by letting him drive the vehicle and feel the difference and by showing the picture / video

P.S Note I will check if he is still keeping the snaps on his mobile till now, will check and try to upload by the snaps by Monday or Tuesday

any way am happy as my bike feels better and the silencer note and engine sound is good and calm, even mileage is 55 on local
drive (covered 20 kms per day)

The problems a faulty timing chain make is not as described by you and there is no need to adjust it in our bike. If the gaskets and packing seals used are not genuine, the oil may start to leak.
If the servicing is satisfactory to you, it is OK. But it is better to keep the engine intact. Nothing else.

Hi,
I got emission test done for my bike, for the first time (bike is 1yr 7 months old) .
Anyway, are there CO and HO levels normal ??

CO, regulation 3.5, actual reading 1.86 % vol
HO, regulation 4500, n hexane, actual reading 2680 PPM

I'm asking because i've not given my bike for servicing for 4 months, if the readings are higher than usual then may be i could give it for servicing and get it tuned or something.

hey guys, its been 4 days since 3rd service.....bike has run around 100-150 kms since. Oil used is motul.
Question is: Is it normal for engine oil to turn black(dark brownish blak in my case) within such a short running time?

Ive ripped it like theres no tomorrow. Might that contribute? I have noticed that gulf retained its colour for around 300-400 kms.

Also, I noticed that bike moves upto 80 kmph easily but takes its time to get towards 100+. I hope this is not on my bike only.

Remaining part of the old oil contribute to the color change and turning in to black doesnt meant that oil is gone bad

As you said ripping like anything and long drives makes engine running in high temperature for long while and the complicated or known process happening inside engine makes it turn black

Gulf retains its color and why not motul ? good question

both belongs to same grade, but both are not same they do have their own character, behavior and they respond differently to each situation

i used both gulf and motul as well this is my take on them

gulf remains same color till i change it but after 1500 kms i found oil need to be changed

motul color changes to pure black[pitch black] after 500 or 800 [remember my 90 % use is with in city and all are 5 to 20 kms short drives] but engine response and oil is good till the end (even though its good i voluntarily changed it at 2500 kms )

Vishnu: I checked for any oil leak but nothing leaks and to my surprise found the engine packing seal is new one (found it by the color of the seal which is visible and once long back SVC did changed the packing seal on my bike during second service so so am sure of it)

Hey guys.. im back after a long time... hit 118 kmph few days back :P my highest.. bike is pretty stable when it comes to speed.. but i have 2 doubts...

1. I keep hearing a lot of squeaky sound in my bike ... when my bike moves in clutch or when i use rear break.
2.My hand pains a little as i met up with accidents few months back which had bent my handle bar. how much would it cost to change the handle bar? the showroom guy said 250? is it just 250?
3. I feel my gearbox is terrible. I'm Always getting neutral when going to 2nd gear..and i feel big TAP sounds when shifting from 2nd to 1st gear. and sometimes randomly other gears too.. wt is the problem with it? and how much will it cost to change the gear box?

Suzuki guys r pretty useles.. bikes feels good just that first few days after service , later i get back all my problems !

I completely agree with vishnu.

yes it seems ur CO level is high it should be less than 1.2percent vol..not sure abt HO..they check CO only to tune engine ...may be i am wrong ..whether HO is used to tune

Are you sure it is HO or HC(Hydrocarbon) content?

Both are at bit higher level... Not a major cause of worry.. get it tuned... it might be a case that due to this .. you might be experiencing low mileage.