Question about 2010 Yamaha yBR 125

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Yamaha YBR 125 keeps cutting out

I have recently purchased a ybr 125 it has been going great - until now the last couple of weeks - when the revs are low when I am slowing down coming to a junction or traffic lights the bike cuts out - it always starts straight away with the electric starter. I took it back to the garage and they said I had rubbish petrol (or words to that affect) it was ok for a couple of weeks and is now back again (changed where I got the petrol from) - any suggestions it is now out of warranty.

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craig stuart

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Hy a have a 2007 yamaha yber 125 it starts first time but then cuts off after 10 seconds anyone know what this is am struggling

Posted on Jun 16, 2014

  • craig stuart
    craig stuart Jun 16, 2014

    hi poeple av got a 2007 yamaha ybr 125 it starts first time but cuts out after 10 seconds can anyone help me please am struggling a dont no why my bike doin this

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5 Related Answers

Anonymous

  • 101 Answers

SOURCE: Front sprocket

Hi ........... One tooth less will give you more top speed (if you can pull top revs) but will reduce accelleration. If you go for one tooth less you'll need to tighten the chain and/or remove a link. It's a trade off ............ decide what you want the bike to do.

Posted on Dec 24, 2008

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robotek

Graeme Ross

  • 1512 Answers

SOURCE: yamaha ybr 125 top speed

Hi les
Not much to start with here unfortunatly mate. A free flow muffler will help top end speed, change the factory airbox to a K&N style pod air filter, other than that, hugging the tank at top speed :) If you do change these parts, you may also need to increase the main jet size to richen up the mixture for better tuning of the motor with the better flowing parts. This bike has a top speed of 100kmp and produces 10 hp, so you may only expect to get at best less than 1 extra neddy, and perhaps another 5 km/hr.... I suggest upgrading to a bigger machine of you feel the need for speed :)
If its 125's you are into, test drive a Honda CBR 125R 6 speed fuel injected 13.4 horsepower, and good for 120km/hr
regards robotek

Posted on Jul 10, 2009

tombones

  • 3567 Answers

SOURCE: why does my engine cut off?

Possible reasons are;

  1. Water condensation in the gas tank has partially filled the carb float bowl. Bikes don't run well on water. Remove the drain plug on the float bowl to drain the bowl.
  2. Install a new spark plug to eliminate possible carbon shorting.
  3. Check the side-stand kill switch. Broken or out of adjustment it can intermittently kill the engine.
  4. A loose or dirty plug in connection on the power wire to the coil.
  5. Bad kill switch on the handlebars.
  6. An abraded kill switch wire or power wire.
Start at the top and work your way through the list. If that doesn't work you will need to go to the dealer and have them check the coil, CDI and other ignition components.

Posted on Jan 15, 2010

drallim

  • 4088 Answers

SOURCE: Friend took delivery of his brand new YBR 125 last

Could be a bad neutral switch, shorted or mis-connected wiring. This should be covered under warranty by the dealer at NO charge. Hope this helps!

Posted on Sep 19, 2010

tsantawirya

  • 653 Answers

SOURCE: Yamaha Ybr 125 Motorcycle The hurn does not work

If all other electricals works then just replace the horn (hurn?)

Posted on Nov 09, 2010

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