Re: Engine Decarbonization using Natural Gas!

So this ain't a regular routine in SVCs, right?? never saw it in the hefty bills they hand-over! However, is it necessary to go for a combination of both Decarb & Oil change or Oil-change alone can work? Shall I check my (bike) readings once before Decarbonization or just go for it right-away?

Nandree Swamy!!

Yenna Sullerre Anna, aai yam ye RAJNI FAN & you're nothing lesser than RAJNI with your answeraa (aapkhe bhaare mei wikiphedia bhi khar liya) PS - Lighter note, please!!!

Re: Engine Decarbonization using Natural Gas!

But if compression is lost after Decarbonizing as you have mentioned then how come the bike has more pickup n lesser vibrations?

Now I am confused..

Re: Engine Decarbonization using Natural Gas!

This is not a regular practice at SVC. Please do not desire to do a de-carbonization. If you have been changing oil at regular intervals, go ahead with engine flush. No harm at all. I guess @Rakesh Rok also had similar queries including oil booster and that were addressed here. Might help!


Glad you like Rajini and hey mama... I hope there is no sarcasm.... "Seendaadha... Nondhuduvae" (Famous dialogue from a Rajini movie)
No problem mate, this is a public forum and everyone can share their thoughts. I just share mine when necessary.


Hope you got it wrong. Decarbonizing/Engine flush does not affect compression directly at all.

Again - sludge is built up due to irregularly maintained vehicle. When oil looses viscosity the inner rings begin to wear out eventually paving way for compression to escape out. Over a period of time the old oil just curses the owner and begins to develop sludge around these gaps and acts as artificial seals which prevents the lose of compression to an extent. When the engine is flushed, this sludge is removed and eventually the gap is exposed and compression is lost. Sometimes, the vehicle may not be used much and hence the owner would not change oil at all. In such cases there arises excessive compression resulting in detonation instead of combustion.

If your bike did not lose compression it means there were no sludge build up at all. All that was done was carbon deposits removed from the piston head and other internals. That is good news for you .

Re: Engine Decarbonization using Natural Gas!

Soooper ANNA!! Nice, gone through the other thread as well - very informative! And I already feel good for my pocket as well. But why against Decarb?? Is there any significant side-effect if the compression readings are perfect? I ask because [MENTION=64271]pwcrulez[/MENTION] claims it to be satisfactory.

No Sarcasm!! (It's obvious unless you act like someone with a black avy wishing Independence in every other thread, if you know whom I mean),,, like I said, on a light note:
& I got that - 'Padeyappa' !!! Jackpot!!

"yenna patte summa adhirattilai"

Re: Engine Decarbonization using Natural Gas!

Ok great now I get it.

I wish I had the guts to open my engine and have a look at it, but the fiasco when I opened my Sunny Zip's engine and couldn't put it back together because I broke the piston ring, I have fear.. (I was 15 yrs old & got a ear full from Mum & Dad)

Maybe PHD60 should do a Groupon... Hahahaha.

Re: Engine Decarbonization using Natural Gas!

Ahhh thank you bro for tagging me here, I have my friend who has an activa, his bike is also troubled as the last time he had his oil changed, it was way out of the time limit, thanks for reminding me about oil flush, I will recommend to him about it and probably I will get both my bike as well as his scooter oil flushed and I guess he'll be very happy after that flushing . . . Thanks again for reminding me about this bro . . .

PS: Will go through this whole thread once, cos now just read only your comments and make things further. . .

Cheers!!!

Re: Engine Decarbonization using Natural Gas!

Visualize this mate -> Rich AFR + poor combustion + irregular oil changes = Carbon deposits on valves, cyl walls, manifold and relevant areas that results in friction, knocking and other headache.
Solution = De-carbonization(burn the carbon deposits from the cylinder walls, valves and other related components by introducing solvents/chemicals and idling the engine at varying RPMs and temperatures and intervals)

No matter how good we are to the bike, carbon definitely gets deposited considerably. It is these acceptable deposits that we are trying to remove to restore performance. Poorly maintained bikes may have more wear and tear of rings and valves and carbon deposits/sludge would seal those gaps which will get removed while decarbonization/flushing and eventually you will have to rework the engine head by replacing the valves/rings/guides including or excluding bore/piston. That is the reason why most mechanics go ahead and offer to rework the engine head directly instead of decarb/flush. In this process they replace the vitals mentioned above and charge generously.

So before you go in for such procedure it is advised to know the condition of your engine first and then proceed. This will be known to you if you just ask your own conscience - "Have I been loyal enough with my bike? Did I change oil at proper intervals? Am I filling poor fuel? "
Hope this helps!

Hahaha... I almost fell off the chair for this comment. I still remember it. I guess he is gone with the independence with that last comment.

Hmmm...definitely adhirudhu...

Re: Engine Decarbonization using Natural Gas!


So the Honda Activa & Omni 800 that clocked more than 100k KMs must be lucky cos their engines didn't fell apart after the Decarbonize @ PHD60.

As for fuel, in India we have no choice but to sometimes scumb to crappy fuel unless all Fuel Stations are Shell

Re: Engine Decarbonization using Natural Gas!

That is the saddest fact yet true.

Re: Engine Decarbonization using Natural Gas!

You guys got to watch this.....

Re: Engine Decarbonization using Natural Gas!

@petrolhead_chn gone through the whole thread and also their fb page, so I'm very much satisfied with the results of the people, ok now I have few questions to ask,
1. My bike is a 2006 model unicorn, nearing 50k on the odo, should I do it now as I have never done it before. . .
2. There is no complaint from my bike now anything pertaining to pick up or other things, still do you advice me to go for it. . ?
3. As for the thread I had started is it okay if I just flush it by using the chemicals or whatsoever they call it, . ? As I do travel to Bangalore at least 2-3 monthly once and also the last time I had been there, enquired in shell fuel station and he said it's around 300rs for the engine flush liquid, so thought I would get it next time, what to do natural or chemical method. . ?
4. How else more my bike's performance will be improved than this. . ? Errrr I think this should be answered by me itself after I get it done. . .
5. Have you tried it or any of your friends whom you know personally, what's their opinion about this. . ?

Thanks in advance. . .

Cheers!!!