Honda XR125L restriction?

kinchyuk · L Plate Warrior Joined: 24 Mar 2004 Karma :

Hi,

My Honda XR125L won't go above 55mph. Not just slightly, it stops dead on 55. Sounds like there's plenty of power left to get it faster than that.

Got it doing 70mph going down a hill on the A21, which was fun. And it didn't fall to pieces either Wink

Is there a restriction in there, if so where? Just curious.

Alex

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

A21? You must be a local boy. Is that the little hill you do down between Sevenoaks and T. wells?

Sounds like it needs a service, bring it round to mine in edenbridge and i'll have a poke for you.

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

I would expect it to be a bit quicker than that, but not much. FRom an old copy of Trailbike Magazine sitting in my desk, the Honda XLR125 (similar engine I think):-

kinchyuk · L Plate Warrior Joined: 24 Mar 2004 Karma :

Otacon · L Plate Warrior Joined: 15 Jun 2005 Karma :

Hi, Sorry to bump this topic but was kinda wondering if anyone knew of any links etc with any help on derestricting an xr125l? I bought one a few months ago and its a real bummer not being able to get more than 55mph out of it Razz

Any help would be greatfully appreciated. Very Happy

Gazdaman · I did a trackday!!! Joined: 12 Aug 2004 Karma :

Did you not read the thread before you posted in it?

They're 4 stroke 125s, they're not going to go much faster.

Gaz

kingsknight · World Chat Champion Joined: 21 Jun 2003 Karma :

thats why i would never own a 4 stroke 125 because they are just to dam slow. You do tend to get more problems with 2 strokes but if you look after them well then they are fine.

Get yourself an NSR! trust me a full power (23bhp) NSR will give you a nice fast ride Smile

You will double your top speed and get there in half the time.
____________________
TS50 (sold) NS125F (sold) NSR125R-K (write off after 2 crashes) CG125 (nicked) XR125L-3 (Sold )-: ) DR125SM '11 (sold yay) XL125V '12 (In love with this bike) XT600E '04 (fun on the dirt)

Otacon · L Plate Warrior Joined: 15 Jun 2005 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Should manage more than 55, but about 65 would be flat out (probably need you to be flat on the tank).

Give it a good service (new / cleaned air filter, plug, clean and check carb, check for leaks on the exhaust, check chain, check brakes are not dragging, etc) and see how it goes.

All the best

Keith
____________________
Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

DisabledRider · Nitrous Nuisance Joined: 09 Feb 2005 Karma :

my mates got XR it does 80mph flat out on the motorway. It has a standard exhaust.

It should be a lot faster, and his is not restircted...

Is your choke on?!? (Thats wat he was doing for a while by accident, lol)

Otacon · L Plate Warrior Joined: 15 Jun 2005 Karma :

nah mines does about 55 flat out choke is out is was bought 2nd hand but was fitted with new brakes tyres etc so i dunno if it is that im not really looking for more speed per say just maybe a bit more pulling power!

stevo as b4 · World Chat Champion Joined: 17 Jul 2003 Karma :

it should be as quick as a CG but maybe 2-3mph faster as its the 12bhp OHC motor not the 10.6bhp OHV from the CG. A CG in good nick will sit at 60mph on the flat all day, and ive had nearly 70mph out of one down a long long hill once, but 55mph uphill, 60mph on the flat, and 65mph down hill is normal to expect.

binge · Emo Kiddy Joined: 02 Jul 2004 Karma :

Well ive got a Honda XL125s. I think it has the same engine. I can scrape 60 out of that if im lucky!

<|Ben|>

nicolaslee · L Plate Warrior Joined: 18 Aug 2008 Karma :

there is a way to make ur honda faster and all engines faster in fact and thats to clean out your jets! visit my site wich is an xlr blog and has all kinds of information and what to use. Please leave any info or comments you can to get this blog going. thanks, nick
____________________
carpentry

Gazdaman · I did a trackday!!! Joined: 12 Aug 2004 Karma :

What a bollocks post. And this thread is 3 years old..

Dirty jets make a normal bike run worse. Cleaning them won't make it faster, it'll just make it run normally...

Gaz

nicolaslee · L Plate Warrior Joined: 18 Aug 2008 Karma :

ha ha u know what i meant u knit picking fool! if the xlr125 wont do 65-70 straight up then clean out the jets and it will as long as there isnt any other engine damage.
____________________
carpentry

baldy · World Chat Champion Joined: 15 Feb 2004 Karma :

You wont get 70 from a xr125. i had a new one in 2004 and that did a indicated 63 mph down the dual carriageway.

blocked jets would cause a few more problems than just running slow, i would clean the air filter, de coke the exhaust and fit a new plug. Then i would check the brakes and chain ect.
____________________
One day i will rule the world, just not today.

c_dug · Super Spammer Joined: 04 Sep 2007 Karma :

You will be able to see 80mph off the speedo given a long steep hill (yes i have done it myself), the engine doesnt sound very good though so i wouldnt advise doing it too often.

Cruising at an indicated 70mph is do-able given a long enough bit of flat motorway and no winds, again been there done that, just be warned overtaking anything big is not easy due to the amount of wind they blow out to the sides.

c_dug
____________________
I am a bellend, I am a man of constant sorrow, I am a gummy bear, I am a rock.