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**xDa_nightfury** · 02-06-2013, 04:05 PM

Originally posted by Eshan-P180 View Post

Where are you from buddy? please give me location so that members residing in your city can check it for you.

Going for insurance is okay but if there is no need then you shouldnt, also if you are ready to shell out 20% of 8-9,000 then its fine.

Upto you buddy.

I am from mumbai Kandivali area.
Thanks for advice bro.
Not thinking of claiming an insurance but i am going to a anti rust coating...worried abt the rainy season which is upcoming.

Originally posted by Ron Syl View Post

saw the pic, does not look like a major thing. however if you are worried about the 'wound' on the exhaust, then get it painted. search in your city where it can be done. i really dont think there is any need for panic if there is no leak, and it wont be also in future, the parts cannot be so fragile that it gets scratched and cracks.
1. get it painted if it look bad to you.
2. dont claim insurance if its unnecessary.

and @napster :thumbsup: on the 20k thingi. thats cool.

1. just looking for a anti rust coating...since paint will not stand on heated exhaust i believe..
2. no
Thanks buddy

**Sushrut** · 02-06-2013, 08:27 PM

Anybody here riding for Gujarat Maharashtra mega interstate G2G?

**siddharthsure** · 02-06-2013, 09:42 PM

Hi ppl, Noticed a Suddden Drop in idle RPM ( after warming up,Not cold.. ie: after 20 min ride) From 1.4k to 1.1k....... Is it normal??? Done 800 on ODO

**leodj29** · 02-06-2013, 10:35 PM

Re: Yamaha YZF-R15 version 2.0

Originally posted by xDa_nightfury View Post

I am from mumbai Kandivali area.
Thanks for advice bro.
Not thinking of claiming an insurance but i am going to a anti rust coating...worried abt the rainy season which is upcoming.

1. just looking for a anti rust coating...since paint will not stand on heated exhaust i believe..
2. no
Thanks buddy

I don't know if it's available there but here in the home depot and that kind of stores, they sale spray cans of heat resistant paint both in glossy and mat finish.

Here's an example:

Originally posted by siddharthsure View Post

Hi ppl, Noticed a Suddden Drop in idle RPM ( after warming up,Not cold.. ie: after 20 min ride) From 1.4k to 1.1k....... Is it normal??? Done 800 on ODO

It is normal or at least it sounds logical if you think of the fact that when the engine's cold, the ecu will enrich the mix to prevent stalling and thus, it may increase the RPM a bit, similar to when you apply the choke on a carb, it doesn't pull on the throttle cable, it just restricts the amount of air therefore making the mix richer and making the RPM rise, just that the choke really rises the RPM when it's fully pulled while an EFI system knows exactly how much does it need to prevent stalling.

Do check the manual to see if there's any mentioning of what the iddle RPM should be.

**siddharthsure** · 02-06-2013, 10:56 PM

It is normal or at least it sounds logical if you think of the fact that when the engine's cold, the ecu will enrich the mix to prevent stalling and thus, it may increase the RPM a bit, similar to when you apply the choke on a carb, it doesn't pull on the throttle cable, it just restricts the amount of air therefore making the mix richer and making the RPM rise, just that the choke really rises the RPM when it's fully pulled while an EFI system knows exactly how much does it need to prevent stalling.

Do check the manual to see if there's any mentioning of what the iddle RPM should be.

OOPS!!! i think you misunderstood... I mean all these days My RPM was 1.4K when the engine is warm...Today it suddenly dropped to 1.1 K when the engine is warm.. I dont know why..

And i Drove CBR 150R.... Its RPM shoots to 6K Rpm Just lyk that with a slight flick on the throttle....Why is that difference btw R15 and CBR??? Is it because of its smooth engine or some other reason?? Just curious to know

**spknair** · 02-07-2013, 01:15 AM

Originally posted by siddharthsure View Post

OOPS!!! i think you misunderstood... I mean all these days My RPM was 1.4K when the engine is warm...Today it suddenly dropped to 1.1 K when the engine is warm.. I dont know why..

And i Drove CBR 150R.... Its RPM shoots to 6K Rpm Just lyk that with a slight flick on the throttle....Why is that difference btw R15 and CBR??? Is it because of its smooth engine or some other reason?? Just curious to know

may be our baby blade meant for that

we have to keep more rpm than r15 while in normal riding

**incipient** · 02-07-2013, 04:01 AM

Originally posted by siddharthsure View Post

And i Drove CBR 150R.... Its RPM shoots to 6K Rpm Just lyk that with a slight flick on the throttle....Why is that difference btw R15 and CBR??? Is it because of its smooth engine or some other reason?? Just curious to know

i believe it has got to do with the fact that the cbr 150r has a short stroke engine (relative to the r15) and DOHC. so, its revs more easily and higher but doesn't have the torque (pulling power) of the r15.

**siddharthsure** · 02-07-2013, 07:25 AM

Yamaha YZF-R15 version 2.0

Originally posted by incipient View Post

i believe it has got to do with the fact that the cbr 150r has a short stroke engine (relative to the r15) and DOHC. so, its revs more easily and higher but doesn't have the torque (pulling power) of the r15.

Ya... I think short stroke matters... Dohc or sohc doesn't make a huge difference in a single cylinder engine with 4 valves..

**Ron Syl** · 02-07-2013, 11:33 AM

Originally posted by siddharthsure View Post

Hi ppl, Noticed a Suddden Drop in idle RPM ( after warming up,Not cold.. ie: after 20 min ride) From 1.4k to 1.1k....... Is it normal??? Done 800 on ODO

Normal, 1.1K is correct idle after the engine is warmed up. sometimes when you ride just after starting the bike and not warming up, the engine idle will stay at 1.4k itself and you will feel the less smoother engine, Have you finished 1st service? if yes then service mech would have set the rpm idle to that and you wouldnt have noticed. anyways what you said is normal. do not increase the idle more then 1.4k rpm, let it be at 1.1 or 1.2.

Originally posted by siddharthsure View Post

OOPS!!! i think you misunderstood... I mean all these days My RPM was 1.4K when the engine is warm...Today it suddenly dropped to 1.1 K when the engine is warm.. I dont know why..

And i Drove CBR 150R.... Its RPM shoots to 6K Rpm Just lyk that with a slight flick on the throttle....Why is that difference btw R15 and CBR??? Is it because of its smooth engine or some other reason?? Just curious to know

Because R15 is not cbr150r

simple. its tuned that way. just the way you upgrade to daytona or any other thing to change the character of R15 for track. the power band of cbr is kept high up the rpm. like that for R15 is kept in the middle. smooth engine is not the one making the difference. both are smooth, just that he exhaust not makes you think that cbr is smooth (to hear) and ride.

**gklc811** · 02-07-2013, 11:55 AM

Hi all,

One of my friend who owns P220 told me that his bike got serviced at castrol bike zone and he claims it as the best service centre.
Since his P220 was carb, It would have been good.
Has anyone here serviced R15 at castrol bike zone? If yes please shred some points abt their service.
Do they handle our FI babes with care?

Fed up with ASC:-(

**Ivin** · 02-07-2013, 01:22 PM

Originally posted by gklc811 View Post

Hi all,

One of my friend who owns P220 told me that his bike got serviced at castrol bike zone and he claims it as the best service centre.
Since his P220 was carb, It would have been good.
Has anyone here serviced R15 at castrol bike zone? If yes please shred some points abt their service.
Do they handle our FI babes with care?

Fed up with ASC:-(

If they have an R15 diagnostic tool, then no problem, and I dont think they will have it.

**mulli84** · 02-07-2013, 02:24 PM

Originally posted by gklc811 View Post

Hi all,

One of my friend who owns P220 told me that his bike got serviced at castrol bike zone and he claims it as the best service centre.
Since his P220 was carb, It would have been good.
Has anyone here serviced R15 at castrol bike zone? If yes please shred some points abt their service.
Do they handle our FI babes with care?

Fed up with ASC:-(

I cant say about the R15 service in CAstrol service centre. But I serviced my victor there in 2008 after the TVS SVC told they cant rectify the piston problem( I cant ride it above 50 as there was so much vibe from engine). They told they wanted to change the piston.Since I was going to give it to my uncle, I dont want to spend much and went to the Castrol SVC. They said they can rectify it without the need of piston change and they did it. It was good till 85kmph. They said to drive it under 50 for atleast 100 kms. The odo was 24000 when i gave it to my uncle. The bike has completed 40000 km and still good.

Hope this helped you!!

**R-series** · 02-07-2013, 03:29 PM

Originally posted by siddharthsure View Post

... And i Drove CBR 150R.... Its RPM shoots to 6K Rpm Just lyk that with a slight flick on the throttle....Why is that difference btw R15 and CBR??? Is it because of its smooth engine or some other reason?? Just curious to know

Originally posted by Ron Syl View Post

Because R15 is not cbr150r

simple. its tuned that way. just the way you upgrade to daytona or any other thing to change the character of R15 for track. the power band of cbr is kept high up the rpm. like that for R15 is kept in the middle. smooth engine is not the one making the difference. both are smooth, just that he exhaust not makes you think that cbr is smooth (to hear) and ride.

Irrespective of power...the reason why the RPM shoots up to 6, like the way you observed, is because of the way the engine is made. See the comparison below.

	R15 v2	CBR150R
cc	149.8	149.4
bore	57	63.5
stroke	58.7	47.2

Since the CBR150 has a larger bore(diameter of the inner cylinder) in comparison it's the stroke(distance of movement of the piston), it revs more freely. The piston actually doesn't have to move that far a distance to complete the cycle when compared to that of the R15. Thus it completes it's cycles faster and climbs the rpm range faster as well. But even though CBR 150 climbs up to 10500rpm to produce max power, the R15 doesn't have to climb that much. it produces it at 8500rpm only. Engines like this usually produce their peak power and torque at higher rpm when compared with larger stroke engines.
That's the reason why cruisers pack loads of torque at low rpm, but take time to climb the rmp ladder.

@Ron Syl: Tuning would also have a part to play but that would come secondary. The reason for the behaviour of the CBR150 in such a way is more because of the configuration of the engine(the way it's designed).

**Ron Syl** · 02-07-2013, 03:48 PM

Originally posted by R-series View Post

Irrespective of power...the reason why the RPM shoots up to 6, like the way you observed, is because of the way the engine is made. See the comparison below.

	R15 v2	CBR150R
cc	149.8	149.4
bore	57	63.5
stroke	58.7	47.2

Since the CBR150 has a larger bore(diameter of the inner cylinder) in comparison it's the stroke(distance of movement of the piston), it revs more freely. The piston actually doesn't have to move that far a distance to complete the cycle when compared to that of the R15. Thus it completes it's cycles faster and climbs the rpm range faster as well. But even though CBR 150 climbs up to 10500rpm to produce max power, the R15 doesn't have to climb that much. it produces it at 8500rpm only. Engines like this usually produce their peak power and torque at higher rpm when compared with larger stroke engines.
That's the reason why cruisers pack loads of torque at low rpm, but take time to climb the rmp ladder.

@Ron Syl: Tuning would also have a part to play but that would come secondary. The reason for the behaviour of the CBR150 in such a way is more because of the configuration of the engine(the way it's designed).

nice explanation there

i am not good with so much technical stuff so told in a simple way, ya the tuning is different thing all together.
The way it is designed- This was my core point though. They have their "Character".

**siddharthsure** · 02-07-2013, 06:12 PM

Yamaha YZF-R15 version 2.0

Originally posted by Ron Syl View Post

Normal, 1.1K is correct idle after the engine is warmed up. sometimes when you ride just after starting the bike and not warming up, the engine idle will stay at 1.4k itself and you will feel the less smoother engine, Have you finished 1st service? if yes then service mech would have set the rpm idle to that and you wouldnt have noticed. anyways what you said is normal. do not increase the idle more then 1.4k rpm, let it be at 1.1 or 1.2.

Because R15 is not cbr150r

simple. its tuned that way. just the way you upgrade to daytona or any other thing to change the character of R15 for track. the power band of cbr is kept high up the rpm. like that for R15 is kept in the middle. smooth engine is not the one making the difference. both are smooth, just that he exhaust not makes you think that cbr is smooth (to hear) and ride.

Thanks.... Ya done first service. It stays at 1.1k after warming up. Done I won't change it..

And yea I know both are different bikes.just wanted to know wats the reason behind that.

@R-Series cool explanation bro

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