Originally posted by Bismaya
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
Secondary Air Injection(SAI), Honda's and Hero's have been having them for a while now, circa 2003 or even before that, recently after the BS4 mandate all motorcycles even Bajaj's have come with SAI unit's. My ZMA had it, luckily my P220 nor CT100B comes with it. You can scrap it if you want but if you manage to mess it up then the unit costs over 1k to replace, I've done that.
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
And the torque figure is still stuck at 8.05Nm which is a huge bummer. Smaller capacity bikes should have atleast a higher torque figure than the horses. Honda does that with most of it's bikes. The Dream series bikes are much fun to ride because of the higher torque figures.Originally posted by Krishna3450 View PostLeave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
I think in the newer model the piston crown is flatter, less curvy than the old which explain the power bump from 7.8 to 8.2Originally posted by Bismaya View PostLeave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
I think the first gen Pro models shared the same engine as the Plus, having 7.8HP while mine was about 8.2HP. Now it makes perfect sense why the engine sounded different compared to the old Pro models. It's the same engine on Passion Pro as well. The Splendor Plus models these days (i3s variants) use the recent Pro engine and a dampener for the BS norms I think.Originally posted by Pinaki View PostLeave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
correct, its the secondary air injection system to convert CO to CO2 and reduce harmful gas emissions. Even my 2007 Dio has this (locally called 'pollution pipe') the black tube is part of the tube and i don't thinks it's totally metal.Originally posted by Pinaki View Postthat thing used to intrigue me even before I bought my Splendor+ too
Now what I know is that that pipe takes air from the air filter through the Air-suction-valve device and feeds it into the exhaust in an attempt to convert as much as harmful CO ( carbon monoxide ) in the exhaust gasses into harmless CO2 ( carbon dioxide ) by oxidation . Still don't know why this chromed pipe needs to be covered in that black fabric tube , or exactly how the Air-suction-valve thing ( also keihin made like the carburetor ) works 
There is another usually a rubber pipe that is connected to the manifold vacuum (commonly called vacuum pipe) and the asv is a one way valve. My scoot once had this vacuum pipe come off (due to a human error while installing a horn near that) and the scoot couldn't hold an idle until it was connected back. So basically the air suction valve has three connections.. one to the air filter side to suck in fresh air, one to the vacuum and the other to the exhaust to which it injects fresh air. The scooters like the honda activa's/dio have a separate box for the secondary air filter (a tiny 2x2 inch oil soaked sponge) that is connected to this air suction valve.
Most bikes have been having it for some time now.. recently iirc even the pulsars employ this design.Last edited by s1d; 09-28-2018, 11:41 PM.Leave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
Yes , that's the primary reason Hero did some redesign on the old Honda engine , beause it was becoming increasingly difficult for the old Honda designed engine to keep up with ever stricter BS pollution norms being enforced in India . Splendor Pro was the first Splendor to have a Hero made engine ( silver colour cylinder barrel ) since Hero & Honda separated , I think .Originally posted by Bismaya View PostLeave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
Mine's a 2015 Pro (old design). Since I don't have it, does it mean that my bike causes less pollution as compared to the older bikes?Originally posted by Pinaki View Postthat thing used to intrigue me even before I bought my Splendor+ too Now what I know is that that pipe takes air from the air filter through the Air-suction-valve device and feeds it into the exhaust in an attempt to convert as much as harmful CO ( carbon monoxide ) in the exhaust gasses into harmless CO2 ( carbon dioxide ) by oxidation . Still don't know why this chromed pipe needs to be covered in that black fabric tube , or exactly how the Air-suction-valve thing ( also keihin made like the carburetor ) works Leave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
that thing used to intrigue me even before I bought my Splendor+ tooOriginally posted by Bismaya View Post Now what I know is that that pipe takes air from the air filter through the Air-suction-valve device and feeds it into the exhaust in an attempt to convert as much as harmful CO ( carbon monoxide ) in the exhaust gasses into harmless CO2 ( carbon dioxide ) by oxidation . Still don't know why this chromed pipe needs to be covered in that black fabric tube , or exactly how the Air-suction-valve thing ( also keihin made like the carburetor ) works
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
Noob question guys, but what's the function of the highlighted pipe/valve that runs below the engine? It has that partial black colored covering on it and I noticed that my Splendor Pro doesn't have it. I noticed that almost all other models have it. First I thought that the previous owner had removed it but there is no clamp or the clamp bolt which holds that pipe either. So, I'm a bit confused why my model doesn't have it when almost all other bikes on-road do. My mechanic said that it was used on old Splendors which caused more pollution but I don't think that's the case here.Attached FilesLeave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
Yes bro. It's not the tensioner. It's the tensioner spring and pushrod. It keeps the tensioner arm pushed in.Originally posted by Pinaki View Post
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
That's true, the overall quality has gone down.Originally posted by ashwinprakas View PostWow! Goes to show how spare quality has deteriorated over the years.
My CT100B's chain is 25k km's old and it has been dead post the golden quadrilateral ride which estimates life of roughly 20k km's.
For those wondering, it's made by Rollon.
My last set of clutch plates lasted only 15k kms, while the stock ones lasted 80k+ kms (would've lasted longer, but I learnt to ride on it plus my friend and I regularly overloaded it with 200+kgs).Leave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
Wow! Goes to show how spare quality has deteriorated over the years.Originally posted by Shashank K R View Post
My CT100B's chain is 25k km's old and it has been dead post the golden quadrilateral ride which estimates life of roughly 20k km's.
For those wondering, it's made by Rollon.Leave a comment:
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Re: Hero Moto Splendor/Joy/CD-Dawn/Passion
My dad's CD100 is still on third chain, which he claims was made by Diamond or Rollon. He doesn't seem to remember the brand and now even after 24 years and 200K+ chains are still not an issue on old bikes. They last really long.Originally posted by Shashank K R View PostLeave a comment:
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