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**neevarp16** · 11-06-2012, 07:04 PM

Originally posted by mulli84 View Post

I opened the cover using a ratchet wrench. My dad had it for years and it was put to use today. BTW,its anticlockwise to loosen. The sprocket was rusted a bit and there was a lot of dirt. Im going to do cleaning the rust tomorrow and lube the chain too.

Oh! Good luck in greasing your hands!

**mulli84** · 11-06-2012, 07:25 PM

Originally posted by neevarp16 View Post

Oh! Good luck in greasing your hands!

Yeah I had run into a problem while lubing. I tightened a little bit hard and voila the bolt hole in the engine(in which the chain slider cover fits) got broken

To fix that, I used superglue to seal and got a lot of superglue on my fingers. Finally after some flesh peeled off, I managed to seal the broken piece and then tightened the bolts. Im wondering how a little too much tighting will make the hole broken? I felt the material was so malleable. IS it like that in all modern bikes?

Can we weld that piece? Is it good to weld? Or else I should take it to SVC first?

**neobiker** · 11-07-2012, 11:15 AM

Friends, I am encountering some strange problem in the baby blade. When rpm is 5K (irrespective of any gear) I hear a metal clang noise (something like a monastery bell ringing at a long distance). I am having this from yesterday evening.

Strange part is below 5K rpm there is no noise, after 5K rpm also there is no noise.

Today morning when started and after a while i tried twisting the throttle to 5K rpm, i didn't get that noise. After some 5-10 minutes of riding, I started getting that noise.

I did try to figure out the origin of the noise by keeping the bike in neutral and rising the throttle, but couldn't. Also, if the noise is coming from some loose parts or something like that, why the noise is vanishing after 5k rpm.

I just completed my 1st first service, vehicle odo is around 650Kms. Planning to take it service today evening to show this.

Any thoughts will be helpful.

**neevarp16** · 11-07-2012, 11:34 AM

Originally posted by mulli84 View Post

Can we weld that piece? Is it good to weld? Or else I should take it to SVC first?

Jus go ask at your ASC for that specific part. You can buy it from them and can fix it yourselves.

Originally posted by neobiker View Post

Any thoughts will be helpful.

Sorry bro! Completely no idea on this!
But, let us know what was the issue after getting to ASC.

**neobiker** · 11-07-2012, 11:38 AM

Originally posted by neevarp16 View Post

Sorry bro! Completely no idea on this!
But, let us know what was the issue after getting to ASC.

Good part is that, there is no indication in the console like engine temperature or something like that. I could able to peacefully cruise in 90kmph@ 6k rpm+ where there is no noise....

Will go to ASC today evening and show them.

**aargee** · 11-07-2012, 11:39 AM

Originally posted by neobiker View Post

Any thoughts will be helpful.

Pls check the slackness of chain it must be scrapping the bottom of the swing arm where the slider isn't covering.

**neobiker** · 11-07-2012, 01:49 PM

Originally posted by aargee View Post

Pls check the slackness of chain it must be scrapping the bottom of the swing arm where the slider isn't covering.

Sure aargee, will check and get back to you guys.

**StylishKiller** · 11-07-2012, 07:07 PM

Originally posted by aargee View Post

Pls check the slackness of chain it must be scrapping the bottom of the swing arm where the slider isn't covering.

But why only at 5k rpm?

**aargee** · 11-07-2012, 07:23 PM

Originally posted by StylishKiller View Post

But why only at 5k rpm?

Most of my experiments and learning are with CBR 250R & hence holds good to that machine, so I'm answering from that bike's point of view that may or may not hold good for C150R

There's a point at which the speed of the vehicle becomes optimal (pls don't ask for what, I'm unable to express in words) & starts moving freely, like neither acceleration or deceleration; you can probably say, chain is under less tension & it is at that point chain starts hitting the slider.

In my case, the slider had broken to pieces & at precisely around 104-107 Kmph it was not hitting the swing arm; any speed less than this & over 107 to 112 was hitting the swing arm.

Why 5K RPM? It could've happened at 6K or 7K too, but it depends on how loose the chain is. Like I said, this theory holds more from CBR 250R.

**neobiker** · 11-07-2012, 10:01 PM

Originally posted by aargee View Post

Most of my experiments and learning are with CBR 250R & hence holds good to that machine, so I'm answering from that bike's point of view that may or may not hold good for C150R

There's a point at which the speed of the vehicle becomes optimal (pls don't ask for what, I'm unable to express in words) & starts moving freely, like neither acceleration or deceleration; you can probably say, chain is under less tension & it is at that point chain starts hitting the slider.

In my case, the slider had broken to pieces & at precisely around 104-107 Kmph it was not hitting the swing arm; any speed less than this & over 107 to 112 was hitting the swing arm.

Why 5K RPM? It could've happened at 6K or 7K too, but it depends on how loose the chain is. Like I said, this theory holds more from CBR 250R.

@aargee and others, I think I am close to the problem. As I was late out of my work, I couldn't go to the ASC today. But on my way back home, I stopped at a local mechanic shop, who I give my other 2 wheelers for service. I told about the noise I am getting. He checked and immediately concluded that the culprit is the silencer.

Apparently, between the black stubby silencer and the metal covering it has, there is a fiber bush or some rubber bush sort of material. Somehow that fiber bush is not there. Due to that, above 5K rpm, there is a surge in power causing substantial vibration in the stubby silencer. This vibration is forcing the silencer to touch the metal cover causing that Clang noise. That is the cause of this noise problem.

Tomorrow or over the weekend, I will go to the ASC to fix this issue.

Thanks all for your views.

**aargee** · 11-08-2012, 08:55 AM

Ok, so my analogy is not all wrong, it's chain but sliding over exhaust than the swing arm. Good. Tks to have shared your findings @neobiker

**Akash.Yadav** · 11-09-2012, 08:10 AM

Originally posted by aargee View Post

Ok, so my analogy is not all wrong, it's chain but sliding over exhaust than the swing arm. Good. Tks to have shared your findings @neobiker

Chain sliding over exhaust? I know it can slide over the swingarm, but exhaust is on the other side of the chain. How is that possible? @Neobiker is referring to the silver colored cover that vibrates at its natural vibrating frequency at 5K RPM. This is avoided when we have a rubber or fiber bush between two pieces, like, the silencer and the metal cover to save the silencer from getting scratched.

@Neobiker : I believe that's what you have referred, right?

**neobiker** · 11-09-2012, 03:55 PM

Originally posted by Akash.Yadav View Post

Chain sliding over exhaust? I know it can slide over the swingarm, but exhaust is on the other side of the chain. How is that possible? @Neobiker is referring to the silver colored cover that vibrates at its natural vibrating frequency at 5K RPM. This is avoided when we have a rubber or fiber bush between two pieces, like, the silencer and the metal cover to save the silencer from getting scratched.

@Neobiker : I believe that's what you have referred, right?

@Akash, yes that is right. That silver colored metal cover is getting scratched in the silencer @5K Rpm when there is a vibration due to surge in power.

**Akash.Yadav** · 11-09-2012, 08:30 PM

Originally posted by neobiker View Post

@Akash, yes that is right. That silver colored metal cover is getting scratched in the silencer @5K Rpm when there is a vibration due to surge in power.

That should be the correct diagnosis. That TING-LING sound can only be made when loose metal pieces strike together. Any update on how you are approaching for resolution? Is that bush available? SVCs are notoriously known for stupid replacements talks.

**neobiker** · 11-10-2012, 06:15 PM

Originally posted by aargee View Post

Ok, so my analogy is not all wrong, it's chain but sliding over exhaust than the swing arm. Good. Tks to have shared your findings @neobiker

Anytime aargee.

Originally posted by Akash.Yadav View Post

That should be the correct diagnosis. That TING-LING sound can only be made when loose metal pieces strike together. Any update on how you are approaching for resolution? Is that bush available? SVCs are notoriously known for stupid replacements talks.

Actually, I went to ASC today and met the CBR specialist mechanic named Khan. He confirmed that, the name of the part that is missing is called the silencer protector rubber. As usual both Saffire honda service centers didn't have part. May get after 1-2 weeks.

During chatting with him I asked about the run-in. He said, we don't need anything like that for 150R as it is pre-seasoned R engine which does not require initial pampering.

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