Hi, were you the same person who posted this few months back too ??

Because i remember reading that some fz in hyderbad had this same problem and he was told that it was because of using shell petrol that the engine got damaged (same symptoms, some rubbery layer forming around piston).

This issue might be related only to fz and not all bikes.
Considering our bike has aluminium engine similar to super bikes and most super bikes use synthetic oils only, i guess its ok to use it.

And synthetic oils sticking to all the parts inside the engine is a good thing. That is what engine oils are supposed to do. form a layer between two metal parts to reduce friction and wear and tear in the engine..
But its not supposed to solidify to a rubbery layer, that part remains a mystery since synthetic oils can withstand a much higher temp and should not decompose like this.

I've used shell petrol for atleast 90% of my riding from when i got the bike and shell oils(mineral) for about 50% of my bikes running. no problems so far, but my bike has completed only 5400 kms so may be too early to comment too.

Hey raghunandan,as far as my bike is concerned,which was facing roughness issue was thoroughly examined by the svc people they sent the photos of malfunctioned bore and piston and up on confirmatin from the main technical people sitting in noida,replaced the bore and piston.

So they replaced upon pin pointing the culprit/admitting the roughness issue is existing.otherwise why do you think they will resort to this which is dearer to them.

This might be experianced only by minority that too some owners of 2009 and early 2010.Hence this roughness hot debate should be taken positively as awareness and the eligible must consider replacment.Thanks to "xbhp.com" and co gs owners i am able to understand my gs better and sort out niggles because of these discussions.

small correction
Balancer shaft will engage only in sixth gear, in all other 5 gears balancer shaft will be disengaged no matter of engine rpm.

The one I told was happened to a guy in bangalore - whitefield.


Shell petrol is good even am using it almost 95 %i never tried synth oil and not sure about it but now you cleared the cloud around it.

Actually I was planning to switch to synthetic during the 8'k oil filter replacement.

My GS engine is going cool with mineral, so while switching planned to use the castrol power 1 racer synthetic oil as a flushing agent (to flush out the residues and remainings of mineral oil in the engine).


Will use it till I reach 9'k then change to motul synth.

Experts do let me know if anything bad with my plan?


@ raghunandan good info thanks man.

+ one to that...
Thanks for XBHP and the GS owners in creating awareness about manufacture defects in certain batch...

@ Raghunandan
Once again; Which batch of GS u own sir??
Mine is april 2009 and has done over 10,000kms
Some of us are really facing issues (initial batch) and have done all possible inspections and tuning, care etc....
Please refer previous posts...
I think this awareness is a very good opportunity and a solid evidence for some of us to get this mess sorted out...
If we still think the problem is with our handling or maintenance or is a common issue, our warranty period will get over and we will be the ultimate losers....

Once again, GS 2010 owners, please do not confirm your stand....
Our batch is an entirely different breed of GS...

For new Buyers,
After reading all these, do not conclude that GS is problematic...
Now the new batch is far more redefined
Some of us, i mean initial 2009 models had some problems...
Thats why Raghunandan, Mach are not able to digest this issue
I just want some things to be corrected, Thats all
Cheers

well MSN bhai if you do want to flush the engine do so within minutes no point in running it 1k kms just get any cheap oil put it in and run the engine for 10min till it get HOT then flush it out this will work way better than running castrol for 1k kms if you really want to flush engine oil.

p.s above recommended by SVC mechanic itself and i trust that guy very good so i suggest you do that sounds more practical and logical if we want to flush the engine.


edit: I agree to @mathew the issue is mainly with 2009 models believe me when i went to SVC yesterday there was only 1 bike beside me that was 2010 model and he too told that after adjustment in tappet the noise significantly reduced. So this is not a major issue with 2010 model but with 2009 model i asked several fellow GS owner's and 80% of them confirmed about the Noise. So 09 model the issues are there with specific batches but with 2010 model currently we should not 'Jump the Gun'.

Thanks Adi!!!
All I looked for is someone to support my comment (common expatiation of a broken heart fellow)

Coming to the point,
Once i had a chance to ride a 2010 model, since it was a new bike, i didn't test it to its limits (maybe was a bike kept for delivery and i didn't wan to treat it harsh).. It was different...
Then i had a chance to revv one of the customers bike (taken aft 2nd service), the exhaust note was so sweet and different..
For sure, Suzuki has improved the quality, No doubt about it....

About, the carb self tuning, it is not our duty.... We have to well verse in the basics before laying our hands on to it... If your bike is giving good mileage and delivering good power, never ever touch the carb. If your have problems, make sure a well qualified person in that field handles the situation, possible be with him while tuning...

In my case, the Co2 reading was fluctuating very heavily when the air-screw is set in position...

Rotating the airscrew several times may also spoil its thread....
My suggestion to all is within the warranty, let SC do the work, catch hold or a good fellow over there and treat him as a real good friend...
After the warranty, you be continue there or find a good mechanic....

@ Adi,

But I want to flush out all mineral oil residue and remainings so using another cheeper mineral oil doesn't makes the job done coz I want to get ride of mineral oil, so that thinking of using a cheaper synth oil (Castro power 1 racer). Will use if we have any other cheeper synth oil


@ mathews

My bike was manufactured on jan 2010 where I bought on feb 2010 crossed 5k and till now haven't got that issue.


I believe it was their on many of the early 2009 models and few later 2009 3rd quarter and 1st quarter of 2010) models.
(Seems the fault volume is reduced by every quarter and gone Nil with the new model)

Don't leave them until they fix your issue. Its your bike your money but its their duty coz its their product

Yes we are all always with you on this, so any trouble just post it hear will help you till they make it done.

Thanks Madu
I am loving this community!!!!!
Will keep u all updated for sure....
I spoke to Mr. Kalyan(service head SMK), he promised he'll help me out..
Since tomorrow is a public holiday, he said to leave the bike on monday and take is personal GS150 as a standby...

So, monday, I'll get back with a positive news

Engine Roughness!

Hi all,
Mine is June 2010 model..
ROUGHNESS IS STILL AN ISSUE!
5k on odo, completed 3rd service just 2 days before. my SC is using SERVO OIL so just after service, rode it for 100 kms in 2 days, bought 2 cans of motul 5100 15w50 semi - syn oil 400 rs each. changed the SC oil to Motul tonight. Rode it for some 5 kms, But Found no difference in smoothness compared to the 100 km old SC servo oil.I felt great smoothness when i changed to moto4gold 20w40 mineral oil after 2nd service(but again engine becomes rough as it heats up). This was really disappointing for motul 5100 15w50 semi - syn oil.
one thing about this bike is , its VERY SMOOTH LIKE UNI after each service.. But once it gets hot after riding it for few kms, its back to normal.. ROUGH
I had great hopes on this motul but disappointing. Let me try tom morning on a longer drive and tell you. Do this oil need some running lik 50 or 100 kms to become effective? Any idea guys as i see some are already using this oil.
I rode our GS and Dazzler side by side for comparison.. I should admit that Honda really shines when it comes to engine smoothnes n gear shifting (with a nice gear shift FEEL) and light handling feel in traffic even with two pillions. I have ridden the old uni for long drives through hills and the engine feel is smooth through out with out any split personality like our GS.
I am just telling you the Facts i found out

Castrol power 1 racing is not a cheap synthetic oil. Its actually very expensive, (i think its 750+), and most reviews say its not actually synthetic either, just a highly refined mineral oil base..

If you do want to follow the flushing procedure, i remember seeing a 2yr old can of petronas off JC road which was 350 bucks. that would be a better alternative.

But flushing is not necessary, just change the oil filter and directly pour in the synthetic oil, its fine, the oils wont react or cause any bad reaction.

Or alternatively, switch to semi synthetic once and then synthetic.


@Saru44:
Firstly, our GS needs a w40 grade, not w50. So the oil you put is a bit thicker than usual(and plus since its winter, it'll seem more viscous now).

Just give it around 100kms to set in and dislodge the residue of the w40 oil, then you'll be able to tell if motul actually performs well or not.

And please give your review about the 5100, 15w50 after using it for sometime.. I was planning to use 5100 too, 10w40 first pref, 15w50 if i dont get the 10w40.

Brother,
No wonder on why
motul 5100 15w50 semi - syn oil doesn't works for you. Always go with Xx-W40 grade where the first Xx can be 5 or 10 or 15 or 20 but the second numerical value should remain 40.

Try motul mineral 5000T 20W-40

@ falcon
Sure Will try that one

Well first and foremost change the engine oil from servo to motul or gulf and 15w50 will not work since it will stick more to the Engine it is very thick even though they tell that it can be used i will say use 20w40 though i think MSN bhai is using 15w50 Motul Synt. And if you have done only 5k on odo why switch to Synth so quickly believe me you don't want to switch to synth till 9k.

@mathew i agree i have not done anything with the carb i told the SVC to just check it out he did the CO test and turned it 1/2 anticlockwise direction so if i get bad mileage i will switch to original position.

The reason i didn't touch the carb myself is that whenever i touch things i have to do them twice it is in my family history nothing works in 1st try lol

@saru i will suggest scrap the Moto4gold it is bad oil and stick to Gulf or Motul in mineral motul 3000T plus and Gulf pride 4T plus both are very good oils.

@MSN1 if you don't want to flush with a low grade oil just get a oil which you are comfortable with yes it willl burn a little bit of pocket but if you want to flush real well then try a oil which you are ok with for flushing the engine

ADD MOBIL SUPER 4T 20w 40 In ur good oil list
Here in my town many GS owners using it,me too changed recently...All telling 3000km plus and smooth