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Yamaha ybr 125G losses power going uphill - Motorcycles

Posted by Anonymous on

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 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

robotek
  • 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

wd4ity
  • 4565 Answers

SOURCE: Big loss of power while riding. Compression loss?

If the bike just suddenly lost power but it still ran, I would suspect the carburetor slide diaphragm provided it still has the original Keihen CV carb. If the diaphragm gets a hole in it, the slide will not go up and down in the carb.

Remove the air filter cover and air filter so that you can see inside the carb. Standing away from the mouth of the carb, rev the engine and see if the slide moves up and down. If so,it's fine. if not, the diaphragm has probably got a hole in it. To get to the diaphragm, remove the carb from the engine and remove the top. With the top off and the long spring out, you can easily remove the diaphragm and the slide. When replacing, be very careful not to pinch the new diaphragm.

One other thing that it could be is something has caused a restriction in the exhaust system. This would probably only be possible in the case of single mufler system.

Steve

Posted on Jun 24, 2010

Testimonial: "Most of this I have tried, but the responses have certainly verified my thoughts and justified the direction I chose to go in troubleshooting. "

  • 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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