Question about 2005 Yamaha Ybr 125

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Have a yamaha ybr 125 that seems to be restricted speed stops at 50mph yet revs still low and plenty of give in the throttle? how do i fix this? want to be able to travel at the speed of the traffic

Posted by grayan79 on

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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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Anonymous

  • 1 Answer

SOURCE: What are the valve clearances of the engine of

Valve clearances are
in 0,12 mm
ex 0,15 mm
on cold engine

Posted on Jun 30, 2009

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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

ollie reece

ollie reece-jones

  • 1167 Answers

SOURCE: fork oil capacity

medium fork oil - 150 mls in each leg

Posted on Nov 01, 2009

Hal Hallman

  • 770 Answers

SOURCE: is the odometer on a yamaha ybr 125 in miles or

If it was made for use in the US it should be miles. If it is a european model, then Kilometers.

Posted on Nov 07, 2009

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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.

Dec 24, 2008 | 2006 Yamaha Ybr 125

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