In the last few days there has been a grinding noise coming from the engine of my bike when I'm driving at slow speeds in second gear.Its my first bike so I'm not a hundred percent sure from where. It feels like its coming from near my braking foot on the right hand side. Anyone have any ideas what it could be?
Re: 2000 Yamaha XV 125, Grinding noise from engine
It sounds like your one of your rotational gear disc has fallen off the pin in your gear chamber.. easy fix just take it apart and put it back on and put the old oil in it so it isnt to scared to run on the new stuff. also put some 2 stroke oil in your oil when your doing changes it will greese it up better and it wont happen again, 50 ml of 2 stroke oil to the letre, then it will never hapen again.. enjoy!
just dont ride it till you do it... it will only talke 30 mins.. easy sh!t
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Hi Anonymous, I just loaned my brand new pair of listening ears to your local dealers chief technician so he could take your bike for a test ride and give you his professional opinion and estimate about your noise and repair cost. Good luck and have a nice day. DOWNLOAD 1999 Aprilia Rs 125
Can you be a bit more precise? Is the sound coming from the engine? The front end? Is the bike moving while it happens? If it's not and is variable depending on RPM chances are it is internal engine components - (New motor time)
THESE BIKES ARE EQUIPPED WITH ONE WAY CLUTCHES ON THE STARTER DRIVE. WHAT THEY DO IS HELP TO PREVENT ENGINE DAMAGE IN THE EVENT OF A KICK BACK. IF THIS HAS HAPPENED A LOT, THEN THE ONE WAY CLUTCH COULD BE DAMAGED AND BE IN NEED OF REPLACING. THIS WILL ALSO CAUSE SOME OF THE GRINDING NOISE YOU ARE HEARING.
If you are hearing a bad grinding noise then Stop riding the bike NOW. If you continue to ride, or run the engine, you will only do more internal damage and make the repair cost higher. Chances are you have a bent shift fork and the noise is the engaging dogs on the slider gear grinding the side of a fixed gear because the bent fork is preventing full engagement.
The entire engine comes out of the frame and gets completely torn down. The top end comes off, the case covers come off, the clutch, shift shaft, kick starter, flywheel and electrics all come off. Then the case is split to gain access to the gears and shift drum. The gears and shift drum now get removed and now the fork can be replaced. If a gear needs to be replaced because of a broken teeth, replace also any gear the teeth mesh with. A few special tools are needed. Sorry for having to give you the bad news.
If it ONLY does it in second gear, then there will be a problem with that gear set in the transmission. I would straight away drop the oil from the bike and check screens and filters and sump plugs for any debri. If there is metal grindings in the sump, continuing to ride the bike in that condition could easily result in complete failure of some parts, and or the entire engine because of the bits of metal passing through. A mechanic can sometimes get a look inside the transmission with an inspection camera designed for the job.
You need to act quick if you wish to keep the repair costs to a minimum. Ignoring the problem may result in having to spend extra money replacing additional parts. Good luck with getting it sorted. Happy to talk to you more about it.