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**Honda_CBF** · 10-21-2011, 06:09 PM

Originally posted by SunnyBoi View Post

using Acetone is useless. That thing evaporises in an instant. How long does nail polish remover stay on your nails before disappearing?

incase it didnt evaporise, it will take out all rubber parts inside the carb. Same with ethanol, both are bad for rubber parts.

I dont agree to that..
All liquids evaporate even petrol.
And about effects on rubber parts, only long term uses can cause it that too with too much concentration..
It can be effectively used to clean combustion chamber deposits once in a year. I know nothing can clean an engine internal sparkling clean, but it will count on long run.

**Honda_CBF** · 10-22-2011, 11:20 PM

Guys, what do you think about mixing boric acid with ethanol then this solution with petrol..??
I just remembered some sites saying boric acid mixes much better in alcohol than acetone..

**psr** · 10-23-2011, 12:32 AM

Originally posted by Honda_CBF View Post

Guys, what do you think about mixing boric acid with ethanol then this solution with petrol..??
I just remembered some sites saying boric acid mixes much better in alcohol than acetone..

I had already posted once on this.....the Boric Acid in petrol will clog the filter in the petrol tap leading to nil petrol flow.

**Pinaki** · 10-23-2011, 02:37 AM

Originally posted by SunnyBoi View Post

using Acetone is useless. That thing evaporises in an instant. How long does nail polish remover stay on your nails before disappearing?
incase it didnt evaporise, it will take out all rubber parts inside the carb. Same with ethanol, both are bad for rubber parts.

You aren't applying on nails (hopefully

) . Any volatile substance when dissolved in another less volatile one , can't evaporate away like it would if kept alone . Ethanol is very very volatile . But if it would evaporate so quickly when dissolved in water (for example) you would hardly have time to take a sip of your whisky

.
Many substances will attack rubber , but surely not in those dilutions . Even 20ml acetone in a liter of petrol (0.02%) would not effect any rubber . What it does to petrol is not even a chemical change . It reduces the surface tension of petrol . Even ethanol does the same thing . to a lesser degree . Reduced surface tension of petrol will have many effects on it's behavior inside the engine . The effect may be positive or negative for our engines , I don't know that .. but significant effect shall be present .

**Honda_CBF** · 10-23-2011, 10:03 AM

Originally posted by psr View Post

I had already posted once on this.....the Boric Acid in petrol will clog the filter in the petrol tap leading to nil petrol flow.

but sir, I've successfully mixed some 4gm of boric acid with 10ml ethanol. It mixed so well that no open eye can trace any particles.
So I dont think fuel filter will get clog.. Or will it?

**psr** · 10-23-2011, 10:07 AM

Originally posted by Honda_CBF View Post

but sir, I've successfully mixed some 4gm of boric acid with 10ml ethanol. It mixed so well that no open eye can trace any particles.
So I dont think fuel filter will get clog.. Or will it?

may be your petrol tap filter isn't close mesh type....but eventually the boric acid will go and settle at the bottom of the carburetor float bowl and clog main & pilot jet...I had experienced this.

**Honda_CBF** · 10-23-2011, 10:14 AM

^^ oh man, then it seems there's no way of using this stuff with petrol..
Thanks for clearing my silly thoughts..

**psr** · 10-23-2011, 11:07 AM

Originally posted by Honda_CBF View Post

^^ oh man, then it seems there's no way of using this stuff with petrol..
Thanks for clearing my silly thoughts..

You can try adding 2 gms only at a time and see if you run into problem,since smaller quantity has every chance of getting distributed and may not form blocks.

**Honda_CBF** · 10-23-2011, 12:14 PM

Ya.. I'm gonna experiment it on my friend's hunk this afternoon.
Will ride the bike for some 50kms under city limits.
Any advice on it.. Any other points to consider?

**Honda_CBF** · 10-23-2011, 07:01 PM

Originally posted by Honda_CBF View Post

Ya.. I'm gonna experiment it on my friend's hunk this afternoon.
Will ride the bike for some 50kms under city limits.

did that!!
Even checked the carb, every thing was fine.
Used 4gm boric acid + 15ml ethanol + 1 liter petrol (bike already had reserve)
no change was felt in ride but spark plug was little cleaner..
Will carry on with this experiment till this weekend.

**psr** · 10-23-2011, 08:04 PM

Originally posted by Honda_CBF View Post

did that!!
Even checked the carb, every thing was fine.
Used 4gm boric acid + 15ml ethanol + 1 liter petrol (bike already had reserve)
no change was felt in ride but spark plug was little cleaner..
Will carry on with this experiment till this weekend.

Hunk is a 4 stroke and so you can add 20 Gms Boric Acid to the engine oil and ride for 50 Kms at a stretch..If the bike had not done above 10 K Kms DO NOT DO THIS.if it is more then you can do as opined above...try to have new oil in engine for maximum benefit.

**Honda_CBF** · 10-23-2011, 09:03 PM

^^I'm sacred of using boric acid with oil.. As someone said its hard to clean its sump (it settles to the bottom)
and regarding bike its more than 35k kms old.
Used mineral oil till date, oil change was always late.

**psr** · 10-23-2011, 09:23 PM

Originally posted by Honda_CBF View Post

^^I'm sacred of using boric acid with oil.. As someone said its hard to clean its sump (it settles to the bottom)
and regarding bike its more than 35k kms old.
Used mineral oil till date, oil change was always late.

the settling down of Boric acid is with the petrol only..In oil Boric acid will not get dissolved and remains as a suspended particle and plus the gears,clutch plates piston bearings etc., all keep moving at high velocity once the bike is started.This will stir up the mix and give good result. i had used it in kb 100 zma car etc.

**Honda_CBF** · 10-24-2011, 07:42 AM

Originally posted by psr View Post

the settling down of Boric acid is with the petrol only..In oil Boric acid will not get dissolved and remains as a suspended particle and plus the gears,clutch plates piston bearings etc., all keep moving at high velocity once the bike is started.This will stir up the mix and give good result. i had used it in kb 100 zma car etc.

thanks for clearing my mind again sir.
Told him about this.. & he says, he'll do this few months before changing clutch..
I'll be updating it on the 'Boric acid + engine oil' thread

**psr** · 10-24-2011, 10:16 AM

Originally posted by Honda_CBF View Post

thanks for clearing my mind again sir.
Told him about this.. & he says, he'll do this few months before changing clutch..
I'll be updating it on the 'Boric acid + engine oil' thread

Do it ASAP since the acceleration,smoothness and FE will all improve.You will feel the difference in the first 50 kms and then 500 and 1000 Kms. This is from my experience.The clutch also seems to engage without slip,since the small amount of clutch slip I had in my ZMA also disappeared after the boric acid treatment.

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