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Hi, Anonymous for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix or parts inquiry. If necessary transport your vehicle to the dealer or shop and have a professional technician take it for a test drive, if it is in running condition, and give you a written estimate of repairs and answer any specific questions you may have about your issue. For more information about your issue please visit the website below. Good luck and have a nice day. Chinese Taiwanese and Korean 125cc Motorcycles Repair Manual with four...
hi check chain and sprocket for condition, lubricate if nessasary, replace if required, with respect of the vibration, is this that has just started? or is a development factor, had the same problem once with a yamaha 125r, asuming you have checked all the engine bolts are tight, i fitted a pair of foam grips made the ride much better
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
sounds like the bearing's in the triple clamp area are ether warn out or is over tighten a quick test " stand over the bike like you would be like your at a stop light,place both feet on the ground and grab the handle bars with both hands and lift like your trying to lift the front of the bike up to see if you feel any play "YOU DON'T HAVE TO LIFT THE BIKE YOU COULD REALLY HURT YOU BACK". if you do feel play you will want to take the bike in to have this replaced.
Only three things would cause the problem. 1) a slightly beny shift fork, 2) a shift index wheel loose, 3) the foot shift lever needs to be adjusted.
The most likely source is the shift lever needing to be lower. Once you are in 5th gear you move your foot to the top iof the pedal in preparation for a downshift. At high speed your entire body is leaning forward FOOT INCLUDED. Chances are that enough pressure is on the pedal to move the slider gear out of position and thus out of 5th gear.
You could try changing the sprocket sizes. This will change the gearing.if you change the size to give you more top speed tho, you will lose acceleration. have a look at www.chaingang.com.au .They have a calculator on there that will help you work out your final speeds etc.