20 Most Recent 2004 Yamaha YZ 125 - Page 8 Questions & Answers

Maybe try changing the float. It may be filling with gas which means it can't float.

when oil becomes creamy or foamy it is a sighn that you are getting moisture in it. you must have water leaking into your oil. you should fix the problem soon because your oil will not work properly with an excess if moisture in it.

you need to really crank down on that flywheel puller. even when they are not rusted they are dinks to get off. i wouldn't give it heat. i'd soak it in an oil. and hten really torgue her down. should pop right off … Joe

Hi,

This is a mechanical oil seal. In order to replace it, you will have to remove the right hand side engine cover. The seal is located in this cover.

If you are not an experienced mechanic then you should take your bike to a dealer.
NB use the genuine part for this bike.

Good luck

Jon

remove gas line from carb and turn on gas if no gas tank and line need cleaning. if there is gas need to remove carb and clean jets. before you remove it seal off the back of carb with hand and have someone to kick it over a few times if its a small clogg this just might remove it GOOD LUCK

go to your local yamaha dealership and buy one for 22 bucks

I would first invest in a service manual for yhe bike. Bikes take a lot of general maint. and not everything is in the owner's maual. Most of the times you can find images on line though. Changing them is pretty easy though.
The caliper holds the pads, and is usually held on by 2 screws. Take those 2 off and remove the caliper. Unscrew the brake pads and remove. Now in order to reinstall the pads, you are going to need something like a C clamp to compress the piston down (behind one of the pads). once compressed, remove the clamp and install the pads. Put the caliper back on and test the brakes. make take a couple of tries to get the piston back into position.
Get the manual first though, really it will help a lot if you plan on keeping this bike.

These are pretty easy if these are stock forks,,, you can actually do it without losing any for oil. I used to do it all the time in the dealership. DO NOT remove the fork caps yet,,just loosen the cap about 2 turns. Remove the forks from the bike, Secure them, one at a time in a vertical position, I had a LARGE vice sitting on the floor. You want to remove the cap now and hold onto the fork leg so it does not slide down real fast!!!! Ease it down until the spring shows, remove the spring almost all the way until all the oil drips off the spring, remove it and lay it somewhere clean. Slowly lower the leg into the slider, remove the seal protector, Look at the fork seal, there is a snap ring that holds the seal in, carefully remove it. Take a 4mm drill bit (.160"+-) and drill two holes in the top of the seal, 180 apart. I had a "hook" tool I used to work the seal out. Once its out, slide it up and over the tube, CLEAN the fork tube!! CAREFULLY oil the new seal and carefully work it over the tube, slide it into place and work it down, now with a FLAT drift tap a little at a time until you can install the snap ring fully seated!! Raise the tube, install the spring and cap. Once the tubes are installed in the triple clamps you can fully tighten the caps! Repeat for the other one and reinstall. TAKE YOUR TIME!!

18 to 20 ft pounds.

I am not a expert so asker beware, but it might be that the clutch pads might be worn out or the pressure plate might be a little loose

You have a failed bearing in the case for the kick starter. check manuals.. can access on-line. Good luck Jerry