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**Raccoon** · 04-10-2009, 07:04 PM

Originally posted by suhasn46 View Post

Guys I ride a '05 zma which is running on castrol power 1 20w40 right now. I rode a new zma R and somehow felt that my bike doesn't give the throttle response that I got in the zma-R.

I'm doing a 1k ride this month end and thinking of changing to HH 10W30 before the ride. Will it harm my engine in any way? Please advise.

Also do HH have a 20W40 on stock now?

I have seen 20W40 Hero Honda oil in shops few months back. If your bike came with the original recommendation of 20W40, it might be a better idea to stick to that.

Anyway, though Idemitsu HH oil is decent, why do you want to use that when better options like Gulf Pride is available? You could try Elf too. You get them in both grades.

**ravi@17bhp** · 04-10-2009, 07:12 PM

Raccoon, per the manual recommendation my bike too needs 20w40. I have clearly noticed that with 10w30 HH oil, my bike runs smoother than the 20w40 (I am using 20w40 oil now and before used 10w30 oil and I can clearly see the difference).

It is not the dealers who are using the 10w30 oil, but it is the recommendation by HH to use it in all bikes. It might be that the technology in latest 10w30 is good than the 20w40. I have seen many manufacturers recommending 10w30 oil these days (eg, SYM, Suzuki). Even some car manufacturers are using 10w30.

**Raccoon** · 04-10-2009, 07:33 PM

Well, thats why I underlined the word "might"!

Issue is, even if HH is recommending the thinner oil, it could be for logistic reasons, etc. And as you know, they aren't bothered to tell us the real reason. So we can only speculate. IMHO, chances are less likely that you will go wrong with the original recommendation.

**ravi@17bhp** · 04-10-2009, 07:50 PM

Originally posted by Raccoon View Post

Well, thats why I underlined the word "might"!

Issue is, even if HH is recommending the thinner oil, it could be for logistic reasons, etc. And as you know, they aren't bothered to tell us the real reason. So we can only speculate. IMHO, chances are less likely that you will go wrong with the original recommendation.

I could clearly feel the difference between the two oils, a positive difference with 10w30.

And I do not see any logistic reasons here. They have not changed the manufacturer either. Without engineers certification, HH management can not just use 10w30 oil for logistic benefits.

And what other reason do you need than telling that the new oil is better than old?? Of course, the draining period of new oil is 6000 km (in practical it could be less but it is still better than old oil). Remember, the technology of engine oils has also grown well in the recent.

**suhasn46** · 04-11-2009, 12:53 AM

Originally posted by ravi@17bhp View Post

5300 in 4 years???

Are you using it just for getting groceries??

No I am the second owner of the bike. I bought it in January when it had done only 2300 kms.

Since the 1st owner is a friend who went abroad after buying it, it was abandoned for 4 years or so.

It has done 3000 kms in 3 months it's been with me

Originally posted by Raccoon View Post

I have seen 20W40 Hero Honda oil in shops few months back. If your bike came with the original recommendation of 20W40, it might be a better idea to stick to that.

Anyway, though Idemitsu HH oil is decent, why do you want to use that when better options like Gulf Pride is available? You could try Elf too. You get them in both grades.

I have tried different makes of 20W40 oil but frankly I did not see a phenomenal difference. Then, the moment I rode the zma R, I could feel the bike accelerates better than mine and the engine revvs more freely than mine- and then I read the same here. So I want to try the 10W30. Decided if at all I feel it is getting heated more than normal, I'll switch back to 20W40.

**Raccoon** · 04-11-2009, 01:37 AM

Originally posted by ravi@17bhp View Post

And I do not see any logistic reasons here. They have not changed the manufacturer either. Without engineers certification, HH management can not just use 10w30 oil for logistic benefits.

And what other reason do you need than telling that the new oil is better than old?? Of course, the draining period of new oil is 6000 km (in practical it could be less but it is still better than old oil). Remember, the technology of engine oils has also grown well in the recent.

HH, like most other companies is run by businessmen, not by engineers! Decisions are not so straightforward for companies... and the life of your engine is not necessarily the most important parameter for them.

Btw, some 20w40 oils also have a similar drain periods as 10W30. Gulf Oil is one of them. Can't recall for sure, but I guess Elf too.

**Akshay.** · 04-11-2009, 01:40 AM

Originally posted by ravi@17bhp View Post

After changing the rear tyre I observed bike going more speeds at lower rpms compared to old tyre.

in 4th gear
4k = 45 kmph
5k = 60 kmph
6k = 80 kmph
7k = 95 kmph
7.5k = 105 kmph

5th gear

4k = 65 kmph (previously 60 kmph)
5k = 85 kmph (previously 80 kmph)
6k = 105 kmph (previously 100 kmph)

Note that above values are approximate, not dead accurate (all speeds are speedo indicated)

happens when you go in for a Wider tyre as it wraps around the rim leading to a slight increase in profile,and tyre diameter and hence Lower RPM for particular speeds.

This is why i like 120\90 tyre on a zma for high speed crusing

**nirvan** · 04-11-2009, 09:46 AM

Originally posted by suhasn46 View Post

No I am the second owner of the bike. I bought it in January when it had done only 2300 kms.

Since the 1st owner is a friend who went abroad after buying it, it was abandoned for 4 years or so.

I have tried different makes of 20W40 oil but frankly I did not see a phenomenal difference. Then, the moment I rode the zma R, I could feel the bike accelerates better than mine and the engine revvs more freely than mine- and then I read the same here. So I want to try the 10W30. Decided if at all I feel it is getting heated more than normal, I'll switch back to 20W40.

What did you have serviced on the bike after the 4 year hiatus? Chances are the jets would have gotten gummed up with petrol residue and the air cleaner needs replacement because of mold or something similar.

If not already done so, I'd have the carb cleaned and the air filter replaced if necessary.

**suhasn46** · 04-11-2009, 09:16 PM

Originally posted by nirvan View Post

What did you have serviced on the bike after the 4 year hiatus? Chances are the jets would have gotten gummed up with petrol residue and the air cleaner needs replacement because of mold or something similar.

If not already done so, I'd have the carb cleaned and the air filter replaced if necessary.

Yes had a thorough check of everything. Replaced the air filter, fork oil and also engine oil.. Bike felt a bit sluggish for the first 100 kms or so..but since then there's no looking back.

**nirvan** · 04-12-2009, 05:46 AM

Did you have the carb cleaned though?

**ragGZ_** · 04-12-2009, 11:43 PM

Hi,

i got my spark plug today and put the NGK Iradium. After putting it, the bikes giving me some starnge sound, as if teh spark plug is not in properly. I have tried to tigthen it up but still the same. Any issues with that.

Please guide me!!! Also may i know aht are the tappet settings (probably might have spelt it wrong, pls apologise)

**onlinesatish** · 04-12-2009, 11:44 PM

Originally posted by ragGZ_ View Post

Hi,

i got my spark plug today and put the NGK Iradium. After putting it, the bikes giving me some starnge sound, as if teh spark plug is not in properly. I have tried to tigthen it up but still the same. Any issues with that.

Please guide me!!! Also may i know aht are the tappet settings (probably might have spelt it wrong, pls apologise)

U might need some tuning.....Ravi anna where are u???

**nirvan** · 04-13-2009, 01:23 AM

I suspect you have not tightened the spark plug enough.

**ragGZ_** · 04-13-2009, 01:53 AM

Originally posted by nirvan View Post

I suspect you have not tightened the spark plug enough.

well i did, used all my strength to get this on (lolz). i somehow feel that it might be something else but cnnot figure it out.

but hell yes, the bikes roaring after i put in teh NGK

**ravi@17bhp** · 04-13-2009, 12:30 PM

Originally posted by Raccoon View Post

HH, like most other companies is run by businessmen, not by engineers! Decisions are not so straightforward for companies... and the life of your engine is not necessarily the most important parameter for them.

Seems you are very sure that the businessmen of the HH will decide what engine oil they should use in the bike. Could you please take care to explain us on what basis the businessmen at HH thought of changing the grade of the oil??

Originally posted by Raccoon View Post

Btw, some 20w40 oils also have a similar drain periods as 10W30. Gulf Oil is one of them. Can't recall for sure, but I guess Elf too.

As I told before, oil technology has evolved and this is very well expected and I am very well aware of it, as I am using the one now.

Originally posted by ragGZ_ View Post

well i did, used all my strength to get this on (lolz). i somehow feel that it might be something else but cnnot figure it out.

but hell yes, the bikes roaring after i put in teh NGK

RagZ, I have been using the NGK Iridium for the past 2000km. I did not face any problem while fitting it. Are you sure you have bought the Plug that is meant for Karizma???

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