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radrunner
L Plate Warrior



Joined: 04 Jul 2015
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PostPosted: 16:52 - 04 Jul 2015    Post subject: cbr 125 Reply with quote
Ladies or gents I have a question

I have a 2005 cbr 125 (dont hold that against me)

What kind of speed should I be able to get out of it cos I think there may
well be something wrong with it any one ???
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NJD
World Chat Champion



Joined: 11 Mar 2015
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PostPosted: 16:56 - 04 Jul 2015    Post subject: Reply with quote
70mph - source

Posting what you think is wrong with your bike as best as possible may help others comment on if there is actually something wrong or not?
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radrunner
L Plate Warrior



Joined: 04 Jul 2015
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PostPosted: 17:14 - 04 Jul 2015    Post subject: Reply with quote
I get 50 - 58 at a push
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radrunner
L Plate Warrior



Joined: 04 Jul 2015
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PostPosted: 17:15 - 04 Jul 2015    Post subject: Reply with quote
I get 50 - 58 at a push
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ForestRunner
Nova Slayer



Joined: 13 May 2014
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PostPosted: 17:28 - 04 Jul 2015    Post subject: Reply with quote
As I get more (indicated) out of a cbf125, I'd say that is not right.
Other symptoms??
____________________
Slowly learning...
CBF125 Red (Stolen) -> CBF125 White -> 1999 Hornet
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radrunner
L Plate Warrior



Joined: 04 Jul 2015
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PostPosted: 05:29 - 06 Jul 2015    Post subject: slow cbr Reply with quote
As I am not that good with engine s it makes a strange
kind of noise when running
I can get up to 50 but when I put in top gear it doesnt go any
quicker
also if I get to 50 in 4th gear and take the revs up past 6500
And keep trying to go faster it kind of chokes
its a bit hard to explain but thats the best I got
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radrunner
L Plate Warrior



Joined: 04 Jul 2015
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PostPosted: 05:29 - 06 Jul 2015    Post subject: slow cbr Reply with quote
As I am not that good with engine s it makes a strange
kind of noise when running
I can get up to 50 but when I put in top gear it doesnt go any
quicker
also if I get to 50 in 4th gear and take the revs up past 6500
And keep trying to go faster it kind of chokes
its a bit hard to explain but thats the best I got
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delsol
World Chat Champion



Joined: 12 Apr 2011
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PostPosted: 07:54 - 06 Jul 2015    Post subject: Reply with quote
How tall are you and what is your weight ?

Do you regularly carry loads on the bike, goods, top box, passenger (scratch passenger ? Shhh! ).
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delsol
World Chat Champion



Joined: 12 Apr 2011
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PostPosted: 07:55 - 06 Jul 2015    Post subject: Reply with quote
How tall are you and what is your weight ?

Do you regularly carry loads on the bike, goods, top box, passenger (scratch passenger ? Shhh! ).
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arry
Super Spammer



Joined: 03 Jan 2009
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PostPosted: 08:30 - 06 Jul 2015    Post subject: Reply with quote
Service history? When was the last time it was checked over?
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Rogerborg
nimbA



Joined: 26 Oct 2010
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PostPosted: 08:39 - 06 Jul 2015    Post subject: Reply with quote
radrunner wrote:
I get 50 - 58 at a push

How are you able to run that fast? Shocked

OK, in B4 Teffers: basics.

Change the engine oil, replace the spark plug, replace the air filter.

Show us a picture of the old spark plug.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike
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P.addy
Red Rocket



Joined: 14 Feb 2008
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PostPosted: 09:02 - 06 Jul 2015    Post subject: Reply with quote
Don't use 6th. Its comical. 5th goes faster than 6th will... Laughing
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radrunner
L Plate Warrior



Joined: 04 Jul 2015
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PostPosted: 09:06 - 06 Jul 2015    Post subject: slow cbr Reply with quote
Dont have a service history I dont carry
heavy loads on it im 5ft 5in and about 13stone
will have to wait till the end of the week to do plug
and oil I only do about 25miles total per day (from stsines
to bracknell and back)
I dont thrash it trypulling wheelies or that kind of stuff
I have a haynes manual but it dont help
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arry
Super Spammer



Joined: 03 Jan 2009
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PostPosted: 09:51 - 06 Jul 2015    Post subject: Reply with quote
So you've no idea how old the air filter is for example.

As said above - basics first. Get it serviced
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el_oso
World Chat Champion



Joined: 17 May 2008
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PostPosted: 10:41 - 06 Jul 2015    Post subject: Reply with quote
you can/should be revving up to the red line to get the most out of it. Don't be afraid to take it past 6.5k rpm.

Has the bike been sitting for any period of time?
____________________
Duke 390
Previous: '05 XR125L | '96 XJ600S Diversion |'05 Suzuki GSXR1000 | '05 Honda CBR125-R | '97 YZF 600R Thundercat | '11 Honda CBR250
Car: Jeep Wrangler 4.0L
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radrunner
L Plate Warrior



Joined: 04 Jul 2015
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PostPosted: 12:10 - 06 Jul 2015    Post subject: slow cbr Reply with quote
So I dont think the air filter has
ever been
cleaned/replaced also it had been sitting for
about 6 - 8weeks after the previous owner went
over on it
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arry
Super Spammer



Joined: 03 Jan 2009
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PostPosted: 12:14 - 06 Jul 2015    Post subject: Reply with quote
Sounds like a well cared for example. I'd be surprised if there was anything seriously wrong with it
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ForestRunner
Nova Slayer



Joined: 13 May 2014
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PostPosted: 18:53 - 06 Jul 2015    Post subject: Reply with quote
el_oso wrote:
you can/should be revving up to the red line to get the most out of it. Don't be afraid to take it past 6.5k rpm.


Is there anything other than 8.5k?
My CBF 125 lives at that in order to generate any forward momentum Very Happy
____________________
Slowly learning...
CBF125 Red (Stolen) -> CBF125 White -> 1999 Hornet
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stevo as b4
World Chat Champion



Joined: 17 Jul 2003
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PostPosted: 19:02 - 06 Jul 2015    Post subject: Reply with quote
The Superbike magazine test timed the 2010 CBR125 at 71.3mph. It also span up the rollers to 11.95bhp at about 9800rpm.

Tidy real figures for a 13bhp motorbike IMO.

The YZF125R is a 73.6mph motorcycle in the same test.
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Raksha
Nova Slayer



Joined: 01 Dec 2014
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PostPosted: 20:18 - 06 Jul 2015    Post subject: Re: slow cbr Reply with quote
radrunner wrote:
Dont have a service history I dont carry
heavy loads on it im 5ft 5in and about 13stone
will have to wait till the end of the week to do plug
and oil I only do about 25miles total per day (from stsines
to bracknell and back)
I dont thrash it trypulling wheelies or that kind of stuff
I have a haynes manual but it dont help


get a mate or a grage to do a service and ask them to clean your carbs. might help as i had a similer issuse on my street due to rust in the tank
____________________
Disclaimer: The above post was brought to you by bad spelling, murdered grammer, and no care or attention. Thank you. Very Happy
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Rogerborg
nimbA



Joined: 26 Oct 2010
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PostPosted: 07:59 - 07 Jul 2015    Post subject: Reply with quote
Carb, singular. I've seen one and heard of a few CBR125s with clogged idle jets so I'd echo the issue about crud from the tank. Slap an inline fuel filter in for a few £££ while you're doing the service.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike
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