when you are getting the carb fixed, get the tank cleaned up as well. not doing that may screw up the carb again. Do it all at once!
And you can also add a petrol filter inline with the tank-carb connection to have a bit of protection from stuff entering the carb thru the tank.

If all the free and paid services were done at due date, there is possibility of getting the tank replaced even after warranty period. If the services were done and the SC refuses to replace the tank, contact Suzuki.

I guess it should read circumference instead of diameter. As, 2001.82284 mm is the circumference of wheel including tyre.

anyway, good calculation.

It was a typing error. Thanks for pointing it out. I have corrected it

Top speed and engine RPM

I was wondering why there is no posts at all in this thread since a week.. but now, i would like to ask something to you fellows...

2 days back, When i was travelling from Silkboard to my office in EC through the flyover, I thought of switching it to powermode. The Max speed i ever attained in this road earlier was 104 kmph in eco mode. But on that day in power mode also, the max speed i got was 106 KMPH even at full throttle. ( All these times in eco as well as in power mode, i had a male pillion rider who almost weights 60 kgs and total weight on bike would be around 130 kgs max including me )

I just didnt notice the RPM at that time since i was concetrating more on the road. and there is a lot of wind opposite to us on this flyover which may restrict the speed of bike.

On the same day, while returning, i was using the normal road (not through flyover) and in there, i attained a max speed of 110 kmph @ 8000 RPM in power mode. ( that too with a pillion rider, and at full throttle ).

So I would lke to know is it normal to have 8000 RPM at this speed ? (is my bike in good engine condition ? ? )

I have read in this forum itself that ppl have gone upto 122 , what rpm were you guys getting when going at higher speed like this ? and was it alone or with pillion passenger.?

( my bike is almost 3 months old now)

Hi can anyone suggest some performance mods to the bike. Like some good initial acceleration.

Hi every one. Posting after a long time. Happy to see you guys again.
Nikhil, i have reached upto 120KMPH on my bike without a pillion. I dont remember the rpm but to get max speed you should consider lots of factors such as proper tyre pressure, new engine oil and filter, properly cleaned air filter, less wind etc.

A quick and easy mod will be reducing the sprocket size/teeth.

The actual speed of new GS at 8000 rpm is 110 kmh and it reaches 122 kmh at 8900 rpm. The load carried does not affect it but you reach that speed easier and earlier when you ride alone.

The speed difference of new batch GS in each 1000 rpm is 13.826 and in earlier batch GS is 14.163 kms.

Your bike is in excellent condition. Keep it well maintained.

The gear ratios of latest model GS is already altered for better pickup in all gears except 1^st. If you are looking for further increase in pickup, replace the 42 teeth rear sprocket with a 44 teethed. This increases the torque at the rear wheel by about 4.75% and decreases the speed at each rpm in every gear by the same ratio i.e. to about 13.198 kms per every 1000 rpm. This means the speed at 8000 rpm lowers to 105 kmh from the present 110 kmh but the bike accelerates to that speed in shorter time.

The other option is changing the 14 teeth front sprocket to 13 teeth. This modification increases the torque by about 7.69%. The loss of speed here is the same 7.69%. Try to find out a suitable 44 teeth rear sprocket or, if it is not available, a 13 teeth front sprocket.

Reducing the rear sprocket size (tall gearing) increases speed and reducing the front sprocket size (short gearing) increases torque.

Yesterday Evening, I gave my bike for second service.. @ Apple Autos, BTM Layout . Had two minor issues, (chik... chik.. sound from front disk and hard gears) .

Eventhough, its my second free service, the SVC ppl said approx. 500 + will come. I donno how come it will be around 500 for a free service. Lets see what and all they are going to charge for..


is there Any chance of getting cheated with fake billing?

Your final bill might be lesser than the estimated bill.

You will be charged for oil around Rs.300 and oil filter around Rs.75. They may also charge for lubricant used in lubricating chain, etc. Your free service could cost some Rs.450. They may also ask to do Teflon coating; this is not Teflon coating but only normal polish. so better avoid this teflon coating.


Also guys, my gs150r is 13 months old and i have clocked nearly 7000 km on odo. I had hard gear shifts since day 1, but this problem was finally solved by suzuki when my bike was 9 months old. They solved it by changing clutch bearing and it took 3 repairs. Now gear shifts are smooth.

However, my bike also had another problem since day 1, and that is tappet noise. When i reported this noise to suzuki service, they said it is normal in new bike and will solve itself as after 2000 km. They even said it was engine balancer noise. However, the noise has persisted, and is only increasing. Engine balancer is supposed to make the bike smoother, so why will it cause more noise?

The maximum speed i have touched is 80 kmph only once. I could have exceeded that speed, but did not, as i didnt want to risk damage to the engine with the tappet noise unresolved. During my daily commute also, i do not exceed 60 kmph speed.

The problem is suzuki service centers are located in noisy places, and they are not able to hear this tappet noise clearly in their service centers. Anyway, they said they will adjust tappets when i leave the bike for service. Is it okay to go on a long ride of 150 km with this tappet noise unresolved?

What is the valve clearance for gs150r? Is it 0.04 mm inlet and 0.08 mm outlet valve? Which suzuki service center in bangalore uses measuring gauges while adjusting valve clearance? I would prefer to leave my bike at that center where they use measuring gauges, and not adjust valve clearance by guesswork.

I really wonder why such things like gear shifts, tappet noise, chain adjustment, etc., are not checked by suzuki before delivering the bike to customer? Gear shifts and tappet noise etc., should really be checked at the factory itself and not at showroom.

I am also facing the same problem( sound from front disc and hard gears) , mine is around 10,000 kms now regular service in ABT chennai, after several services i dont see any improvement, even i was plannning to replace resale price is also very less, i felt more sorry for making an wrong decision im an fan of suzuki i rode suzuki fiero for almost 10 years. so bought GS 150R and now worried.

please suggest some ideas to overcome this problem , anyone have information how to inform suzuki about this issue aswell
Thanks.

As far as I know, none of us were cheated by the service centres earlier. The oil costs around Rs. 200-220 (I am not sure about it as I am using SS oil) and the oil filter costs Rs. 43 now. Ensure that the oil and filter is replaced.

Increases the tappet clearance of a new bike which is not ridden continuously at extreme speeds or without sufficient quantity of oil in the engine is a bit difficult to understand.

Increasing the chain slackness is common in any bike. Same is the gear shifting problem. I have ridden some of the popular bikes on our roads but none was with a butter smooth gear shifting.

Get the valve clearance checked at the SC. The recommended intake clearance is 0.04 to 0.07 mm and exhaust clearance is 0.10 to 0.15 mm.

Instead of depending the mechanics, learn how to adjust the looseness of the chain yourself. It is a simple, very easy job.

The gap between the rotor and brake pad is very little and any dust or tiny sand trapped between them causes harmless squeaking sound. It is natural and is common in every disc brake. Wash the rotor and brake pads regularly with tap water or just ignore that sound if the disc does not become hot after riding a few kms without applying the front brake. And check the disc brake of some other bikes to ensure whether it is a problem of GS alone or is with other bikes too. If the brake is not jammed, it is not affecting the mileage, speed or pickup of your bike.

I have ridden a few more bikes other than GS. May be because of my lack of experience, I was not able to shift the gears effortlessly as if cutting a piece of butter with hot knife. Anyhow, some of us have overcome this problem by replacing the ‘clutch bearing’ of the bike. Ask the mechanic to do the same on your bike when you go to the SC next time.

Instead of being frustrated with the silly problems like hard gear shifting, rubbing sound from disc brake etc. try to sort out the reason and solve it.

The actual problem is that most of us are not facing any serious issues in our bikes and hence we are rotating around the sound from the disc brake, hard gear shifting etc.

Please let me too know whenever you find out a better 150 cc bike than GS. If your selection is correct, I too am ready to replace my GS with it.

Antony, adjusting tappet clearance is not a major work.
Tappet clearance refers to the gap between valve stem and rocker arm that presses the valve for opening. This clearances are provided mainly because the valve stem increases its length when engine gets heated up This clearance between valve stem and rocker arm gets compensated after valve expands and engine reaches its normal working temperature. In your case the tappet clearance is more than that is actually required. This will create a tick-tick noise which is created by hitting of rocker arm on valve stem. You can adjust this clearance with a feeler gauge. But you should know the exact clearances specified by suzuki. If you know these clearance values for each valves, get it done in a good workshop such as castrol service points etc.
Adjusting valve clearance with a feeler gauge.

If the sound from the front brakes you are referring to is a creaking noise it is due to the rubbing of front brake pad on disk. You can solve it by rubbing the pads on a sand paper and lubricating the moving parts in the caliper assembly.

Got call from SVC telling my Bike is ready . They said total amount is 508/- rs .


Will collect my bike this afternoon and will share the bill details..

Hi Guys,

I am having 2010 model which clocked 18k kilometers, My driving style is not that rash. Now-a-days i started noticing engine noise when the bike is in neutral, when i use the clutch the noise seems to be reduced and in gear there is almost no noise...

When i checked with service station they are suspecting something problem with the engine and they want to open it to check for the real problem..

What do you guys suggest? is it ok to open engine and check? i am worried about mileage once the engine is opened and also the engine condition.

Thanks in advance.