Re: Suzuki GS150R


@BlackPanther

Thank you for replying.

And no, it is not increasing when turning the bike to extreme left/right.

To give you a clear picture, consider i'm riding at 55-60 km/h in 6th gear (RPM is at 4000-4500) and i need to brake. I slow down to lets say 25 km/h (the RPM stays at 4000-4500) and apply clutch to shift down (RPM stays at 4000-4500). And all this happens only when fuel levels are down. When I get it filled, there is no such problem.

I will get the carburetor cleaned up, and get those cables checked and let you know how it responds.

Thanks.

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@ashwanth.r

I think that post answers many of my questions.

(1 & 2) I do admit to some poor maintenance in the past, which probably caused damage to the clutch plates.

(3) Also I have to mention my current usage pattern, I use my GS for an average of 2-3 km per day, a 1-1.5 km commute. So effectively, i turn off and start my engine every 1-1.5 km. Hence the low mileage of 35 km/l. (It has always been that much, max. of 43-45 km/l on highways)

(4) i have already been doing all the things you mentioned in the 4th point.
(5) no oil in the spark plug.

But the sudden dip to around 25 km/l after my last oil change (around a month back) is what i'm worried about (even on riding within 4000 RPM, no sudden acceleration). So, that made me think of it as something related to the engine oil. But having said that, the performance in AX7 has been better than the previous 20w40.

I will get the carburetor checked and let you know how it responds.

And if any thoughts on the engine oil, please do let me know.

Thanks a lot

Re: Suzuki GS150R

@anonyblr,

After going through your initial post #19998 and the recent pictures, this is what I felt:

1. It was unlikely the clutch plates got ruined after the accident. For something to hit the clutch cover and that in turn bending and damaging the clutch plates is rare. The clutch cover (or called the RHS crankcase cover) is so thick that it will simply break in a major accident. I think you presented with a complaint of "lack of power" and SVC connected that and the accident and replaced the clutch plates and cable.

2. In the "while studying" phase, did you lend your GS to your friends? If yes, we are looking at possible abuse and that might be the cause for premature clutch/piston rings/valves failure. There is no other way a 2008 batch GS will fail this way. Am assuming you serviced the bike regularly (which means regular replacement of engine oil and filter which also greatly affects piston ring/cylinder life).

3. Poor mileage might be the side-effect of a "worn out top end". But, was it only giving 35 kmpl before all these problems started? That itself is a bit low for GS unless driven very aggressively. There should be something as simple as a compression test at SVC for detecting problems with the head.

4. For idling issue: A. drive for 5-6 kms to warm up the engine and you yourself set the idle screw to tacho indicated 1500 rpm. B. While braking, don't keep the clutch lever pulled in - that will bring the engine to idle and if it isn't warm enough, will shut down. Just downshift and leave the clutch lever out. For 1st gear with engine running (not warm) - you can very very slightly increase the throttle to maintain idling rpm. If this cannot be solved this way, have the carb checked, cleaned and tuned at SVC. (C) Also check what [MENTION=40024]BlackPanther[/MENTION] said.

5. Pull out the spark plug - if it is oil fouled, your engine is drinking oil.

Re: Suzuki GS150R

Is the RPM increasing when turning the bike to extreme left/right ?

Could you check your carb cleaned out/tuned along with checking Throttle cable and choke cable.

Re: Suzuki GS150R





There is no leakage from the overflow pipe nor is there smoke from the exhaust.
Idling set on cold engine probably, because the 4000 rpm idling happens mostly when the engine is heated, but if i decrease the iding when it is doing that, the engine switches off on almost all occasions of shifting down while braking. Sorry if I sound vague, but this is what is happening.

Re: Suzuki GS150R

AX5 is a good oil, premium mineral, slightly on the upper side compared to their own AX3. Suzuki OE oil is not special - it comes from Motul or Idemitsu. Earlier, Castrol used to supply it, I don't know if this continues.


[MENTION=84339]anonyblr[/MENTION]
Waiting for the pictures. 4000 rpm idling seems be an issue with the choke cable or the idle was set on a cold engine, I don't think level of fuel will affect it. Is the carb overflow pipeline leaking fuel? For a normal GS, full application of choke will shoot the idling to approximately 3000 rpm.

Re: Suzuki GS150R sudden mileage loss




Hey, Thanks for the reply.

I will get the engine checked again.

And any idea about the engine idling at 4000 rpm at low fuel? (and not on high fuel levels)

Re: Suzuki GS150R

I am convinced on the Shell Advance AX5 20W40 for the fiero....but thinking about buying this one as an extra backup since its an Suzuki OE oil........my relative has a GS150R but he wouldn't tell me which oil its currently running on....becauz he doesn't know....

Re: Suzuki GS150R

Now am confused. You have a Gixxer, Fiero or GS? All three can use this oil though its preferable to use a 10W-40 on Gixxer. All the xW-40 are the same at engine's operating temperature. Since we don't live in Alaska or Russia, the first number for winter can be 5, 10, 15 or 20. If I had a Gixxer, I would simply buy a can of AX7/Mobil 4T/Elf Moto/Gulf and be content. It is not necessary to use SVC's oil unless one wants to stay with the company's warranty of 2 years/30,000 kms.

Re: Suzuki GS150R

can we use this oil on the GS150R?. Its a 20W40 mineral oil, i think its manufactured by Idemitsu.... In chennai, only ABT Suzuki in nandanam has this oil for Rs. 270/-

Re: poor mileage of GS 150R

Alternate teeth missing would make a scary loud "khadak-khadak" especially when starting to accelerate. My OE chain has given away due to lack of lubing and adjusting. I adjusted it only when it started to hit the covers - chain had come off the sprocket 2 times in the past at very low speeds, both times when transitioning from 2 -> 3 gear. After alteration of gear ratios 1 & 2 in the latest batch of GS, the "gap" between the second and third was widened, I guess. Also, 2 to 3 is the only transition I can't make (till this day) smoothly during clutch-less upshifts. All others, including 1 > neutral > 2 is as smooth as butter getting cut by a hot knife during clutchless upshifts. Lesson learnt - I have kept the target as 30,000 kms for Rolon set with regular lubing and adjusting, lets see if I can make it.


Yup, the famous japanese D.I.D.


Thank you, I have just prepared the ground for more experienced people to address this - be a little patient, it can be solved. I hope you have replaced the air filter too. The tappets have to be adjusted since you have clocked 53k plus on the odometer - was it done in SVC? If not yet, have it done using a feeler gauge on a icy cold engine. All others that you mentioned (oil, choke cable) are a pass, so don't worry about them. I hope there is no loss of power or burning of oil.

Let me share this:
I bought a second hand Eterno on August 15, 2009 (it was the best Independence Day for me - I learnt most of Chennai by roaming in that rickety-racketty scooter). The vehicle was bought for a mere 9k INR at that time and had 58k on the odometer. The previous users (it ran for a local courier company) obviously abused it. My reserve to reserve showed only 32-35 kms per litre of petrol. I took it to KUN Honda, Adyar (Chennai) and explained the history and problems to the SA.

He did 3 main things apart from the usual carb CO/idle adjustment using a gas analyzer:

1. Air filter and spark plug was replaced.
2. Valves were adjusted to spec.
3. "Clutch cleaning" was done (I don't know what that is, the bill said so).

Surprise - Eterno started returning 58-62 kmpl till the day I sold it for a GS in late October 2012. I drove it at 50 kmph (the maximum end of economy zone in most Hondas, only the recent Shine SP is an exception due to 5th gear - the economy zone is officially stretched to 60 kmph) all the time.

Re: Suzuki GS150R

Even my OEM did not last long. The alternate tooth of front sprocket broke around 17K kms and the chain itself was replaced around 20K.

I also have Rolon now (42T at rear) and it is healthy enough to go another 10K+ kms.

Re: Suzuki GS150R

The OE chain is of DID make ?

Re: poor mileage of GS 150R

1. bought in 2009 june, current odo - 53200 kms
2. Mileage calculation - reserve to reserve
3. Spark plug replaced
4. 20W40 - service center replacement
5. Both wheels freely rotating
6. Carburetor cleaning done, idle, fuel mixture tuning , choke cable replaced ..

yet not signs of recovery

Re: Suzuki GS150R sudden mileage loss

Post some pics of your motorcycle.

Re: Suzuki GS150R sudden mileage loss

Clutch plates got ruined after an accident?

The brand of engine oil doesn't make too much of a difference, as long as the grade is as recommended by the manufacturer.

If your engine is burning up that much oil. Your engine would probably require some work on it. Surprising though, considering it is a Suzuki with so few clicks on the odo.