Hi Guys,
My GS150r is four months old, its has clocked 1820 KM in odometer, Second service is done.

The problem is when I start the bike in the morning I hear tick-tick sound from engine at ideal RPM, as I accelerate it the tick-tick sound disappears but it comes again at ideal RPM. and after about 10-15 seconds the tick-tick sound disappears completely. So really don't know whats happening.

Whenever I switch off the engine sometimes it stops with khat sound and sometimes its stops smoothly.

I feel the vibration at foot-peg only its more in the range of 3.5 to 4K and very less at other RPMs, but I do feel it.

Please provide your suggestion it will be very helpful.

That sound you hear is from the auto de-compressor and need not be bothered about it. To get rid of it, just keep the throttle slightly opened or adjust the idling rpm to 1300-1400 when the engine is warm.
The slight vibration at 3.5k is inherent with GS. Anyway, be happy that GS does not shiver as many other bikes do throughout the entire rpm.
When next time the bike is serviced, ask the mechanic to tighten all the nuts at the correct torque. Ensure that the chain is properly tightened and lubed enough that all of its links and rollers are moving freely.

May be I will follow this too as almost 40-50% of my GS's odo was(and will be) on the highway.




6000 rpm is only for highway runs and that too intermittently - I usually keep it at 5k in the 6th gear. For city, I shift up at around 3-3.5k for first 2 gears and then at 4-4.5k for others.

I left my GS for second free service today at ABT suzuki. Odo was reading 3642. I asked them to change the oil, replace brake pedal and check the chain for loseness as it was noisy whenever I closed the throttle.


They didn't replace the brake pedal due to lack of spare. After parking my GS at home, noticed:


1. Oil dripping very slowly (a drop every 3-5 minutes) from the drain nut - To my horror, the nut was not tightened at all. I was able to unscrew it with my hand/cloth combo. Am afraid whether they damaged the thread or it was simply a case of human error of forgeting. I have hand tightened it now. Further They have filled 10W-30 (Last time it was 20W-40).


2. Tool kit neatly dislogded from its place, with the retention strap now missing. The area under the seat was with lots of water droplets.


3. Clutch does not seem right now - I don't know how to explain it - the sharp bite is gone - It takes a very long-ish movement of the lever to engage. And it disengages with the first slight pulling-in of the lever.


Goodies: As usual, gear shifts are more smooth and engine noise (subjective/psychological) reduced. Chain noise is gone.


Now I have to take it again tomorrow to adjust the clutch and tighten the oil drain bolt. Now, I don't think they must have even cleaned the air filter.


I have a few questions:


1. How can something so simple like changing the engine oil go wrong ? Can someone please suggest a good A.S.S. in Chennai. I stay in Adyar and don't mind going to SMK. Is JAV in Adyar good ?


2. Should the clutch lever have a buffer zone before starting to engage/disengage ? How do I know the clutch is adjusted properly ? With the motorcycle in 1 st gear, engine running and on main stand, the rear tyre rotates at about 5 kph with the clutch lever fully pulled in - I was told this is normal.




3. Is 10W-30 okay? The manual accepts it but recommends only 20W-40.


4. Manual says I have to keep the bike off the main stand, hold it on ground and check oil level - I do the same with the main stand on level ground to get an aprroximate reading. Is this okay ?


5. Should the tool kit always be with the bike ? Am not a very good DIY person. (Have a lot of stripped-head screws to my credit )

6. Do they pressure wash the under-seat space ?


Sorry for the long post ! Will update tomorrow.

Hi Everyone, I have pre-booked a black GS150R and am thinking of getting the tube tyres of the bike replaced with the tubeless ones. Any comments if it would be a good idea?

1. Let us accept the non-tightening of the oil drain bolt as an error though the first thing doing before filling fresh oil is tightening the draining bolt. Now tighten that bolt with the 17 mm spanner I the tool kit.
10W-30 oil is for Access scooter; not for GS. 20W-40 may not be available there and hence they filled a lower viscosity oil. Better change it now itself and stick to what is recommended by the manufacturer.
2. All the spanners in the tool kit except the socket wrench to remove carburettor plug and clamp wrench to adjust rear shock are useless. So collect a set of socket, T and ring spanners with lever. It will be helpful.
3. Ask the mechanic to clean the air filter and readjust the clutch.
4. The rotation of wheel you mentioned seems to be normal.
5. For a rough estimation of the quantity of oil, checking it on centre stand on a level surface is enough.
6. Carrying the tool kit with you is not a burden and will be helpful at some critical times.
Instead of looking for another service centre, try to do the usual maintenance works such as oil and filter replacing, air filter cleaning, washing, polishing, chain and other points lube etc yourself as most of us are doing and depend the SC only if any repairing is necessary.
Now collect a 17 mm socket spanner, 8 mm T spanner, 20W-40 oil and oil filter and replace the oil and filter yourself. It is an easy 10 minute job.

Guys, it's been almost one month and 1200 kms since I started facing this issue. Even repeated trips to the service centre was of no use. They'd do all kinds of minor adjustments of idling screw, throttle cable, etc., and the problem would never go away. And when they're out of options, if you push more, all they'd say is "this would some spare parts which we don't have in stock".

I've been consistently getting 40-43 kmpl under light throttle (it used to be 50-55 kmpl under medium throttle) since the past 1200 kms. A few additional problems I noticed are
1. Black smoke emanating from the exhaust upon revving the engine.
2. The bike would struggle to reach above 55 kmph.
3. With a pillion rider it vibrates a lot. Feels like it was never designed to carry more than one person in the first place.
4. Lot of burning smell from the engine/exhaust. I could smell it clearly at traffic signals (amidst the pollution of all other vehicles) and parking lots at office and home.

When an acquaintance of mine who happens to be a mechanic at a Bajaj workshop in the neighbourhood test drove my vehicle, he identified some tik tik sound coming from the engine area. He said the valves of the engine have got worn down and needs immediate replacement. And that the carburettor needs to be cleaned and re-tuned to stop the "uneven idling speed" issue.

I'll be visiting Saboo, Secunderabad tomorrow. Keeping my fingers crossed!!

It'd be great if any of you who faced such issues (in GS150R or any other bike for that matter) could guide me...

Black smoke means the bike is running rich. Have you ever altered the AFR settings earlier? If so, get it tuned properly again at the service centre. Insist on doing it with gas analyzer and never allow to turn the AFR screw blindly. It takes a little time and you have to pay for it.
Check the clutch plates and replace if necessary and do a compression test.
That fluctuation in rpm may be because dirt in the carburettor plug and jets and that itself may be causing the jerkiness. Other reasons are clogging in the fuel line and faulty carburettor plug cap.
We have discussed the plug cap issue earlier while vishnukmd was active here before being banned. In his opinion, fitting the plug cap of Zeus will solve this problem if it is the reason.
A slight vibration at 3500 rpm is common is every GS. If it is excessive, check the engine mounting bolts, axle nuts, visor nuts, condition of the tyre to quantity of oil in the front fork, condition of the chain and vibration dampener.
As your bike has covered 42k kms now, I think the tappets need adjusting. If you have proper tools, adjusting it yourself is better. The intake clearance is 0.07 and exhaust is 0.1 mm.
Make sure that all your problems are clearly written on the work sheet at the SC and explain it to the service manager and mechanic. It is always better to have a friendly mechanic at the SC. Be free to him, give a small tip and develop a good relationship.
Here ends my knowledge in your bikes problems.
And you have a PM from me. Please reply.

unsure of worn piston rings so early on suzuki, check spark plug for AF ratio , quality of fuel , clean the carburretor and check throttle postion sensor cable and assembly. these are simpler things which ASC should carry out . pls post a reply

As we are using unleaded petrol, the spark plug colour reading may not be depended to find out whether the AF ratio is rich or lean. And riding and stopping the bike as usual and taking out the plug is not the correct procedure; I think.

Though unleaded still it shows AF ratio .this should be done by experienced mechanic.

I read somewhere in this forum that, for four strokes, white smoke is for rich fuel mixture and black one for burning engine oil. Don't know true that is!
Knowledgeable members could throw some light on this...

Hi All,


I've been reading the posts in what bike thread ever since i decided to buy a bike...I was confused a lot between GS , SZ-r and Unicorn. But finally landed on GS150 .. A Orange and Black one..


Got my bike delivered on middle of December..Now that i've completed 750 kms, am gonna give my bike for First Service by this weekend.

Members, please help me out with your suggestions for these doubts..

i. Which engine oil is better to use after the first service...? (looks like they will give castrol by default..so is it good if we choose which oil to be used?)
ii. What all things are to be checked while doing the First Service ? (Anything to be said specifically to the service center ppl?)
iii. After a week, it started giving sum tick-tick sound from the rear when going through small gutters or small cuttings..and also when lowering gear from higher gears to to 2nd or 3rd. The sound cannot be heard at anyother time..not even when passing humps or riding through littile bit big gutters. it sounds like metal hitting metal.. What might be the reason...?


-Nikhil

Welcome Nikhil!

Where are you from? You might want to be a little careful (and suspicious) with the SC guys. In Hyderabad, some of them try to rip off unsuspecting customers. While taking delivery, ensure that each and every item marked in the job card is worked upon.

Most of your gear-shift related sounds should go away in the first service.

Am from bangalore... and took my bike from Aryan Suzuki, Domlur ...

and about the sound, its heard most often wen going through small cuttings , patch works , ( i guess you got wat i meant.. ) ... hope the SC guys will clear it after the first service..

Can anyone help me with the Engine Oil part..? which oil is best for GS at this stage..?