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YZF R125 vs RS125 07'

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rac3r
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PostPosted: 18:57 - 30 Nov 2007    Post subject: YZF R125 vs RS125 07' Reply with quote
HI just seen the new YZF R125 and looks really good...anyone know if it is....i also asked my local dealer and he said theyll be in January and selling at £3000...any ideas how it compares to the Aprilia
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rac3r
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PostPosted: 18:59 - 30 Nov 2007    Post subject: Reply with quote
Also whats the difference between the 4 stroke and 2 stroke?
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fazza59
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PostPosted: 19:11 - 30 Nov 2007    Post subject: Re: YZF R125 vs RS125 07' Reply with quote
rac3r wrote:
HI just seen the new YZF R125 and looks really good...anyone know if it is....i also asked my local dealer and he said theyll be in January and selling at £3000...any ideas how it compares to the Aprilia


Don't think anyone would have compared them as the YZF is not out till Jan! Don't suppose it will be much different than a CBR 125, but maybe bigger, even a TZR 50 makes a CBR look like a childs bike!!Rolling Eyes

Quote:
Also whats the difference between the 4 stroke and 2 stroke?


2t - fires every 2 strokes, mix oil and petrol, easy to maintain but more maintenance require, usually a lot faster. Need rebuilds every 10K or less, depends on how hard it ridden. Older bikes are easier to deristrict.

4t - fires every 4 strokes, petrol only no oil mix. Less maintenance but can be more costly when they go wrong. Not easy to deristrict as they (this being a new bike) are all electronic so minimum on what can be done.

Other difference, RS, Italian, nice but lots of plastic - get a Mito instead. Yamaha - Jap and usually well designed, not sure about the plastic but if my sons TZR is anything to go by its the same as the RS - get a Mito instead. Razz [/quote]
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rac3r
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PostPosted: 19:38 - 30 Nov 2007    Post subject: Reply with quote
Mito's are nice but too much work...i want something that will last and not need too much work
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Kickstart
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PostPosted: 19:53 - 30 Nov 2007    Post subject: Re: YZF R125 vs RS125 07' Reply with quote
rac3r wrote:
HI just seen the new YZF R125 and looks really good...anyone know if it is....i also asked my local dealer and he said theyll be in January and selling at £3000...any ideas how it compares to the Aprilia


Cheaper and about the same performance in stock restricted form as the RS125. Just the RS125 can easily be derestricted to gain 20mph in top speed.

rac3r wrote:
Also whats the difference between the 4 stroke and 2 stroke?


4 stroke fires every other time the piston goes up, 2 stroke fires every time the piston goes up. 2 stroke will make more power than the same capacity 4 stroke. 2 stroke is far simpler to make and far simpler to rebuild. 4 stroke has far more components that need servicing, and often have more common service intervals. However performance 2 strokes tend to give their pistons a hard time so they tend to be regarded as a service item which evens things out.

All the best

Keith
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fazza59
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PostPosted: 20:35 - 30 Nov 2007    Post subject: Reply with quote
rac3r wrote:
Mito's are nice but too much work...i want something that will last and not need too much work


As you don't know the difference between a 2t and a 4t, what makes you think a Mito will not last and are to much work???

Buy a CBR, or an RS (you can find many an RS on eBay tha has not been ragged Rolling Eyes ) or get a nice Mito that has not been deristricted and usually has a more mature owner.

The choice Jim, is yours!

This message will self destruct in 5 seconds. Razz
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ncrn
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PostPosted: 22:41 - 30 Nov 2007    Post subject: Re: YZF R125 vs RS125 07' Reply with quote
fazza59 wrote:
Need rebuilds every 10K or less, depends on how hard it ridden. Older bikes are easier to deristrict.


What kind of a 2 stroke needs rebuilds that frequently? :/ The NSR doesn't require a rebuild till 32k, and thats just what the manual suggests you can run it further I'm sure.
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2t-Screamer
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PostPosted: 22:52 - 30 Nov 2007    Post subject: Reply with quote
fazza59 wrote:
rac3r wrote:
Mito's are nice but too much work...i want something that will last and not need too much work


As you don't know the difference between a 2t and a 4t,


Neither do you judging by your previous post Rolling Eyes


fazza59 wrote:

2t - fires every 2 strokes, mix oil and petrol, easy to maintain but more maintenance require, usually a lot faster. Need rebuilds every 10K or less, depends on how hard it ridden. Older bikes are easier to deristrict.

4t - fires every 4 strokes, petrol only no oil mix. Less maintenance but can be more costly when they go wrong. Not easy to deristrict as they (this being a new bike) are all electronic so minimum on what can be done.

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fazza59
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PostPosted: 11:21 - 01 Dec 2007    Post subject: Reply with quote
2t-Screamer wrote:


Neither do you judging by your previous post Rolling Eyes




I think you have misunderstood what I am saying and what a stroke is.
4 stroke - the four strokes are as follows

Intake
Compression
Combustion
Exhaust

Only fires on the combustion stroke.
ncrn wrote:

What kind of a 2 stroke needs rebuilds that frequently? :/ The NSR doesn't require a rebuild till 32k, and thats just what the manual suggests you can run it further I'm sure.


One that has been thrashed! Rolling Eyes Totally derestricted and hammered from day one, has never been warmed up! All you gotta do is look at most 2t bikes on eBay. And is the 32K miles or Kilometers? If it k's that equates to 20k miles
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chris-red
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PostPosted: 16:11 - 01 Dec 2007    Post subject: Reply with quote
fazza59 wrote:
2t-Screamer wrote:


Neither do you judging by your previous post Rolling Eyes




I think you have misunderstood what I am saying and what a stroke is.
4 stroke - the four strokes are as follows

Intake
Compression
Combustion
Exhaust

Only fires on the combustion stroke.
ncrn wrote:

What kind of a 2 stroke needs rebuilds that frequently? :/ The NSR doesn't require a rebuild till 32k, and thats just what the manual suggests you can run it further I'm sure.


One that has been thrashed! Rolling Eyes Totally derestricted and hammered from day one, has never been warmed up! All you gotta do is look at most 2t bikes on eBay. And is the 32K miles or Kilometers? If it k's that equates to 20k miles


You were wrong mate don't try to cover it up Laughing

2 stroke has one power stroke for every 2 revolutions.
https://www.keveney.com/img/twostroke.gif


4 stroke has one power stroke for every 4 revolutions.
https://www.keveney.com/img/otto.gif
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fazza59
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PostPosted: 17:02 - 01 Dec 2007    Post subject: Reply with quote
chris-red wrote:


You were wrong mate don't try to cover it up Laughing

2 stroke has one power stroke for every 2 revolutions.


4 stroke has one power stroke for every 4 revolutions.

Thought I said that?

Quote from Wikipedia

The Otto cycle engine was first patented by Eric B. Davidson and Felice Matteucci in 1854 followed by a first prototype in 1860. It was also conceptualized by French engineer, Alphonse Beau de Rochas in 1862 and independently, by the German engineer Nicolaus Otto in 1876[citation needed]. Its power cycle consists of adiabatic compression, heat addition at constant volume, adiabatic expansion and rejection of heat at constant volume and characterized by four strokes, or reciprocating movements of a piston in a cylinder:

1. intake/induction stroke
2. compression stroke
3. power stroke
4. exhaust stroke



2t - fires every 2 strokes (could be called a revolution but also called a stroke)
4t - fires every 4 strokes(could be called a revolution but also called a stroke)

Seems the same to me just different terminology. Thinking

Anyway what you doing up so early on a Saturday, your a student! Laughing
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chris-red
Have you considered a TDM?



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PostPosted: 17:50 - 01 Dec 2007    Post subject: Re: YZF R125 vs RS125 07' Reply with quote
fazza59 wrote:

2t - fires every 2 strokes, mix oil and petrol, easy to maintain but more maintenance require, usually a lot faster. Need rebuilds every 10K or less, depends on how hard it ridden. Older bikes are easier to deristrict.

4t - fires every 4 strokes, petrol only no oil mix. Less maintenance but can be more costly when they go wrong. Not easy to deristrict as they (this being a new bike) are all electronic so minimum on what can be done.



I meant that,


I'm not a student, I work nights, but you are right I am up early it's because I have been ill for 3 days and off work.
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Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
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chris-red
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PostPosted: 17:51 - 01 Dec 2007    Post subject: Re: YZF R125 vs RS125 07' Reply with quote
chris-red wrote:
fazza59 wrote:

2t - fires every 2 strokes, mix oil and petrol, easy to maintain but more maintenance require, usually a lot faster. Need rebuilds every 10K or less, depends on how hard it ridden. Older bikes are easier to deristrict.

4t - fires every 4 strokes, petrol only no oil mix. Less maintenance but can be more costly when they go wrong. Not easy to deristrict as they (this being a new bike) are all electronic so minimum on what can be done.



I meant that,


I'm not a student, I work nights, but you are right I am up early it's because I have been ill for 3 days and off work.


Just re read it you are right,


Leave me alone I'm ill and out of my sleeping pattern.
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Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.
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fazza59
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PostPosted: 18:57 - 01 Dec 2007    Post subject: Re: YZF R125 vs RS125 07' Reply with quote
chris-red wrote:


I'm not a student, I work nights, but you are right I am up early it's because I have been ill for 3 days and off work.


Only thought you where a student due to your link!

What you got bird flu or man flu


chris-red wrote:

Leave me alone I'm ill and out of my sleeping pattern.


Thumbs Up
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rac3r
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PostPosted: 20:54 - 01 Dec 2007    Post subject: Reply with quote
Ive looked at the Derbi GPR125 and that looks realy nice but again its a 2 stroke so im not sure about the rebuilds and other maintenance....anyone have any figures on the costs of rebuild and stuff
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ZaphodBeeble
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PostPosted: 00:35 - 02 Dec 2007    Post subject: Reply with quote
chris-red wrote:
2 stroke has one power stroke for every 2 revolutions.


Ignition occurs every 2 strokes, which is 1 revolution of the crank.

Quote:
4 stroke has one power stroke for every 4 revolutions.


Ignition occurs every 4 strokes which is 2 revoltions of the crank.

You can see it in the animations you posted.

Z
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Ben.
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PostPosted: 01:04 - 02 Dec 2007    Post subject: Reply with quote
Quote:
HI just seen the new YZF R125... any ideas how it compares to the Aprilia?


wait for it...

Quote:
Also whats the difference between the 4 stroke and 2 stroke


Brick Wall Brick Wall
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ms51ves3
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PostPosted: 01:09 - 02 Dec 2007    Post subject: Reply with quote
chris-red wrote:
4 stroke has one power stroke for every 4 revolutions.
https://www.keveney.com/img/otto.gif


I just watched this for like 5 minutes thinking how amazing engines are.
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Kickstart
The Oracle



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PostPosted: 01:14 - 02 Dec 2007    Post subject: Reply with quote
ms51ves3 wrote:
I just watched this for like 5 minutes thinking how amazing engines are.


Especially the magic inlet valve that opens all by itself.

All the best

Keith
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ZaphodBeeble
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PostPosted: 01:22 - 02 Dec 2007    Post subject: Reply with quote
Kickstart wrote:
Especially the magic inlet valve that opens all by itself.


...there's no valve overlap too and also the points are the wrong way around - they're open most of the time whereas they should be closed until ignition. Razz
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Old Thread Alert!

There is a gap of 1 year, 364 days between these two posts...

davedg33
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PostPosted: 16:28 - 30 Nov 2009    Post subject: New YZF R125 Reply with quote
I have just bought one of these bikes on 0% finance, got it for 2700 - Just a question if anyone can answer - Whats the service intervals on this bike?
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shadowbiker
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PostPosted: 02:44 - 01 Dec 2009    Post subject: Re: New YZF R125 Reply with quote
davedg33 wrote:
I have just bought one of these bikes on 0% finance, got it for 2700 - Just a question if anyone can answer - Whats the service intervals on this bike?


Not sure but what a way to dig up an old thread Laughing

But i do know that with a full scorpion system if you hold open the throttle and start it an keep the throttle open they backfire like mad ! i will get a video posted up Smile
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chris-red
Have you considered a TDM?



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PostPosted: 16:00 - 01 Dec 2009    Post subject: Re: New YZF R125 Reply with quote
davedg33 wrote:
I have just bought one of these bikes on 0% finance, got it for 2700 - Just a question if anyone can answer - Whats the service intervals on this bike?


Thats normally the sort of question you ask the dealer before dropping nearly 3k on a 125.
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Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
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imanupstart
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PostPosted: 16:37 - 01 Dec 2009    Post subject: Re: New YZF R125 Reply with quote
davedg33 wrote:
I have just bought one of these bikes on 0% finance, got it for 2700 - Just a question if anyone can answer - Whats the service intervals on this bike?


They should be in your manual mate, If I remember rightly the first was 600miles.
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rac3r
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PostPosted: 21:27 - 02 Dec 2009    Post subject: Reply with quote
Laughing
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Old Thread Alert!

The last post was made 16 years, 124 days ago. Instead of replying here, would creating a new thread be more useful?
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