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**sibun** · 02-16-2016, 11:18 PM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by Brezon95 View Post

Thanks @dude_creative for your help.

Condition of plug just now:

[ATTACH=CONFIG]204526[/ATTACH]

No petrol over it and no smell of petrol. Seems like I got the issue. Last night when I parked the bike I kept it idling for like 20-30 secs and then turned the ignition off. Was talking with someone. So I think that some petrol would have left unburned and when i took the pic today morning the plug was fouled.

Please tell how is the air fuel mixture and what mileage should I expect.

Its a Bosch plug if i am not wrong. Your problem is your tuning is not coming optimal as your engine is flooded with un burnt fuel which indicates atomization of fuel is not proper.

Worry not. The solution is this:-
1. Clean the jets. The emulsion tube has its pores blocked. No need of opening full carburettor. Just clean the jets throughly.
2. Open the air screw and clean the tip. The tip is dirty thus not proper air flow over jets.
3. Check under seat near air inlet if some cloths or rags are there. Sometimes mouse and all such animals block it.
4. After this clean the [lug and tune it.

Start from 1.5 turns. ride for 5 kms till engine is sufficiently hot. Now increase the rpm using idle screw by 4-5 turns. Now slowly unscrew the air screw. At point you will feel the engine is screaming at its highest point. Ant turn left or right from that point causes the idling to decrease. That is the point of perfect setting.
Leave air screw there and decrease idle by idling screw to stable idle.

Originally posted by dude_creative View Post

bro it is in a tuningmatters site I came across
http://www.tuningmatters.com/how-tos...retor-setting/

The picture is wrong. its marked the opposite. Everything on web is not correct.

Originally posted by EnigmAnurag View Post

[ATTACH]204584[/ATTACH][ATTACH]204583[/ATTACH][ATTACH]204582[/ATTACH]
Hello members of this Wikipedia of a thread.
Have been a silent reader of this thread from many months. Bike was mostly with my brother. After 5 years and 4 months, the bike has completed 45000 kms.

@pranab, after reading your post , out of curiosity i tried to check the insides of a spark plug. So picked up an old dead spark plug, but couldn't get it to open, i even tried heating the ceramic part. Any tips and details on how you managed to open the spark plug.
sibun, a few pages back you advised about changing the air screw after the bike has done 30-40k kms. So thinking about changing it. What is the part number and cost of ir screw of Passion Pro ? And are the air screws of Splendor, Passion, CD Deluxe. etc. same or different for each bike ? Also, need to change the steering racer set, should i go for OE or any other ?
Thanks.

I think you had talked with me on phone and on whatsapp. Is it right.

As for your bike then bot needed. As your model carb has two o-rings on air screw it doesn't leaks much.

When it will show problem you can feel.

Originally posted by curve_king View Post

Sirji since this brownish colour seen on plug is inter-related to throttle position, it also can be in some way tied to the economy range of 30-50 kmph highlighted on speedometers.
So what im trying to ask is that, is the 30-50kmph green zone given, because most optimal firing ecu map naturally have a medium ( not too rich/lean) afr in this zone or do they calculate on basis of estimated throttle position at these particular speeds ?

By air screw we tune the slow jet or lower portion of throttle.

That is theory and its correct. But there is always a but.

Have you thought why we set mixture by tuning at high rpm even though we are tuning the slow jet.

I have tuned at slow speeds and have gotten perfect idle and amazing low speed throttle response.
But why do most mechanics and i also recommend tuning at high rpm .

is the on-line method wrong or am i and mechanics wrong. Actually both are correct. But while tuning at slow speed you will get perfect idle but top speed and mileage will decrease. Your bike will feel lazy at high rpm.

Why?
Its because your needle jet and main jet are fixed. So when we are tuning at slow speed the we are adjusting slow jet orifice. At wide open throttle the slow jet is still working. So in fact you are feeding more fuel and thus low mileage and low top speed.

So we tune at high rpm. By tuning at high rpm we are forcing the main jet to open. Usually we tune at 3k rpm or slightly more causing the main jet to power. When we set the slow jet by air screw in this way we provide an optimal mix as you bike almost always runs above 3k rpm. Below 3k rpm it will be slightly lean but it is not a cause of worry.

Originally posted by EnigmAnurag View Post

@pranab,, thanks brother. You are right regarding safety. Will keep that in mind for sure.

Everyone, I am wondering if a digital non-contact inductive tachometer is available in our country. Googled this, but didn't get much help. Has anyone come across it ? Any idea about cost ? We have Sibun brother's brilliant carb tuning guide, so this kind of tachometer would be really helpful in knowing about rpm during tuning. So, any ideas ?
Also, most indian bikes now come with CDI ignition if I am not mistaken. But some bikes like Apache RTR come with IDI ignition. So, will the above said tachometer work with all kinds of ignitions like CDI, IDI, &/or others ? Or will it work with some particular kind of ignition ?

Inductive tachometer is used by service center. It is hand held device the side of film calculator. It is manufactired by a company named Opamp. Its cost is Rs. 7000.
So i dropped the idea as i have trained my ear to be super responsive while tuning.

However its available at aliexpress for rs. 700 to Rs.2500 depending of quality.

I tried to create an aliexpress account but it has not been activated till now.

And yes it will work on both CDI and TCI.

AS for plug color, find a better color than this in any online pages:-

**Pinaki** · 02-17-2016, 01:52 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by sibun View Post

.. Inductive tachometer is used by service center. It is hand held device the side of film calculator. It is manufactired by a company named Opamp. Its cost is Rs. 7000 ..

Yes , I have seen them use it and was envious

. I have tried with my Fluke-101 put in the Frequency scale and the probe taped to the plug cable externally ( without electrical contact with the wire ) and got a reading . However the readout is in Hz and not direct and we need some formula to arrive at the corresponding rpm value . Another way would be to take frequency reading from the pulsar-coil but for that it has to be tapped because of the small currents involved - not tried it yet .
There are automotive multi-meters that read rpm and dwell directly with a croc-clip on the plug coil , but not seen any here .

**EnigmAnurag** · 02-17-2016, 03:04 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Yes.. Sibun brother, we talked through whatsapp. And the color of your Joy's spark .. Just wow. A few days back I saw the spark plug of a modern car with its fi tech and all,, but even that plug didnt have the color as crisp brick reddish as your Joy's plug.

**Divya Sharan** · 02-17-2016, 08:42 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by EnigmAnurag View Post

Yes.. Sibun brother, we talked through whatsapp. And the color of your Joy's spark .. Just wow. A few days back I saw the spark plug of a modern car with its fi tech and all,, but even that plug didnt have the color as crisp brick reddish as your Joy's plug.

That's because most FI engines run slightly lean and not at ideal AFR all the time.
Sibun anna's Joy is one of a kind. And that is purely because he has worked very hard to keep it that way.

In fact, his dusty Joy looks cleaner (and shinier) than my washed moped.

**EnigmAnurag** · 02-17-2016, 10:18 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

[MENTION=47074]Divya[/MENTION] bhai,, totally agree with your thoughts on Sibun anna's Joy. All the pics & videos of his Joy are a treat for anyone who wants to see how impeccably a bike can be maintained with love and care. Sibun & Joy -- a love story of emotions & mechanical precision.

----consecutive posts auto-merged-----
[MENTION=47074]Divya[/MENTION] bhai,, totally agree with your thoughts on Sibun anna's Joy. All the pics & videos of his Joy are a treat for anyone who wants to see how impeccably a bike can be maintained with love and care. Sibun & Joy -- a love story of emotions & mechanical precision.

**RohIIT** · 02-17-2016, 11:30 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Yes , I have seen them use it and was envious

. I have tried with my Fluke-101 put in the Frequency scale and the probe taped to the plug cable externally ( without electrical contact with the wire ) and got a reading .

This might not result in accurate result , because heavy insulation of wire, it blocks off electromagnetic field created, the meter picked up value but its not the exact value thats being transmitted to spark plug.

However the readout is in Hz and not direct and we need some formula to arrive at the corresponding rpm value

.
There is a formula , 1 Hz = 60 Rpm . so if meter read 50 Hz it means 3000rpm.

Another way would be to take frequency reading from the pulsar-coil but for that it has to be tapped because of the small currents involved - not tried it yet .
There are automotive multi-meters that read rpm and dwell directly with a croc-clip on the plug coil , but not seen any here

Some member here fixed old cbz meter assy into splendor's dome and tacho was working well. Although one can buy any tacho at total loss or second hand shops . MAruti Ritz's tacho costs around 2-2.5k and can be tapped to coil wire for reading, although it requires a 12V supply iirc

**shoeb2015** · 02-18-2016, 12:38 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by RohIIT View Post

MAruti Ritz's tacho costs around 2-2.5k and can be tapped to coil wire for reading, although it requires a 12V supply iirc

That tachometer is for a 4cyl engine and it will not work with a single cylinder engine.

**RohIIT** · 02-18-2016, 10:54 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by shoeb2015 View Post

That tachometer is for a 4cyl engine and it will not work with a single cylinder engine.

how silly of me, completely forgot to include number of cylinders

**Brezon95** · 02-18-2016, 01:13 PM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

[MENTION=28527]sibun[/MENTION] : I think that this time I need take the bike to svc for carb cleaning. I know that they dont do it properly but you know the bike is still in warranty so after they clean and tune it if the problem is still there then I could mail to hero and ask for a carb replacement.

Originally posted by dude_creative View Post

This abro gold - paste like wax worked well for me. cost around 300 @amazon. but will be usable for years
[ATTACH]203147[/ATTACH]

Odered this wax @Rs. 290 from Flipkart. Amazon earlier used to provide COD in my city but now they dont. Lets see how the wax performs.

I earlier thought to buy Formula 1 Wax and it was available @ Rs.365 on Amazon but no COD. On flipkart and snapdeal the wax was available but the total cost including the shipping was more than MRP lol.

**prashanth.rva** · 02-18-2016, 03:05 PM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by Brezon95 View Post

Odered this wax @Rs. 290 from Flipkart. Amazon earlier used to provide COD in my city but now they dont. Lets see how the wax performs.

I earlier thought to buy Formula 1 Wax and it was available @ Rs.365 on Amazon but no COD. On flipkart and snapdeal the wax was available but the total cost including the shipping was more than MRP lol.

Good Choice. I have heard Carnuba Wax will be very good.

By the way which one you are using currently?

Please let us know the results and how you feel about this product once you got from Flipkart. Will be waiting to see the updated pics.

Sad to hear about no COD on Amazon in your city. I always prefer to order with online payment (difficult to arrange correct change), why don't to try online payment instead of COD.

**Brezon95** · 02-18-2016, 03:56 PM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by prashanth.rva View Post

Good Choice. I have heard Carnuba Wax will be very good.

By the way which one you are using currently?

Please let us know the results and how you feel about this product once you got from Flipkart. Will be waiting to see the updated pics.

Sad to hear about no COD on Amazon in your city. I always prefer to order with online payment (difficult to arrange correct change), why don't to try online payment instead of COD.

I am not using any wax as of now. I just wash the bike once in 2-3 weeks with a little amount of surf in a bucket.

Yes I will post the pics once the wax arrives and also the before and after pics of its application.

I prefer COD. I find it good and hassle free. You get the product, then pay the money. Simple.

**Brezon95** · 02-19-2016, 05:40 PM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Spotted the same splendor as dude_creative's yesterday. Same colour but was in a very beaten up condition. But I have to say exhaust note is pretty solid. ;D

**Brezon95** · 02-19-2016, 07:54 PM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by Brezon95 View Post

One small query. What is the actual part of the spark plug that should be inspected to check the condition of mixture?

Is it the the part that is like white plastic which surrounds the center electrode?

Or it is the metal part (Dont know the exact name. Pardon me) that is curved above the center electrode and has the gap between the electrode and it?

I am asking this because while going through the old posts in this thread, I found a post by paul.1911 around page 180 where he oberved light brown colour on the metal part that is curved. While white part that surrounds the electrode was complete white.
But till today I thought that the plug is inspected at the white plastic part which turns light brown when running optimal mix.
So please tell what is the actual part that is inspected.

Please help regarding this.

**Pinaki** · 02-20-2016, 12:35 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Yes , I believe you are correct that the white part(when new) just surrounding the center electrode is the part indicating plug colour and running conditions . It's ceramic porcelain , not plastic

. Other parts of the plug are not to be ignored , they tell their part of the story too .

**Brezon95** · 02-20-2016, 12:55 AM

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Originally posted by Pinaki View Post

Yes , I believe you are correct that the white part(when new) just surrounding the center electrode is the part indicating plug colour and running conditions . It's ceramic porcelain , not plastic

. Other parts of the plug are not to be ignored , they tell their part of the story too .

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