2000 yz 125 tranny oil change

[cowasaki1]

sorry for joining and just asking somewhat dumb questions. but i like this forum better than others. k what kind of oil do i use to put in the gears cause i havent changed the oil ever. also one day i went riding and my bike took a huge chunk of meat outa my freinds leg and when i whent to get a ambulance i was on the top of all the gears, and now my bike like spits and sputters and wont even pop a whellie, and my dad said it was the jeting. and i need a new one so......... ne suggestions will be great!
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[Florida 393]

Man, an oil post first off. Get ready for a flood of opinions on this one. I'd look for a dirt in the carburetor for the bad running and set the float level so you can jet properly as your dad suggested.

Bill

[cowasaki1]

thnx man

[yzernie]

Assuming it ran ok before the wide open run I say you sucked some dirt. Take the carb apart and clean all of the jets and passages.

[ossagp1]

If it is a 2000 and you have never changed the oil, I hope the previous owner did it. If you are the orignal owner then I wouldnt spend any big bucks. No more than it takes to get to somewhere like a local Chili's restaurant and see if they dumped the friers in the cans outback. You could just use some of that.

[cowasaki1]

Originally Posted by ossagp1

If it is a 2000 and you have never changed the oil, I hope the previous owner did it. If you are the orignal owner then I wouldnt spend any big bucks. No more than it takes to get to somewhere like a local Chili's restaurant and see if they dumped the friers in the cans outback. You could just use some of that.

is that sarcasm??

[AV8R]

If you ran wide open for a long time and now it barely runs I would check the top end.
Why wouldthe jetting suddenly change? How would you mysteriousy suck in dirt if your using an air filter?
Do a compression test. You may have damaged the piston or cylinder. If piston no big deal just put in a new top end.
If cylinder time for re-plate. In either case check the compression.

Is it really hard to start now? Like have to push start it?

[cowasaki1]

no its really easy to start it starts just like it use to and runs fine it just spits and sputters in half to 3/4 throttle then once im wide open its all god again.

[ossagp1]

Hmmmmmmm it has been doing it for a whole month. Do you think it will go away soon?

If not, and in the meantime maybe you could disassemble the carburetor and slide the jet needle/emulsifier tube out and see if there is any junk behind it. Just a thought.

[AV8R]

ossaggp1 has a good suggestion. I would start there.

What does your plug look like? This will give you an indication if it is a jetting issue. You might want to start with a new or cleaned plug so you can get a decent read on it. Ride for an hour or so and check the color.

[camestr]

for the oil my '03 yz takes 650 cc of 10w30