2003 Yamaha ttr125l smoking bad!!

kborr
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kborr
Loss of power and smoking out the exhaust bad burning oil out really fast. Just added almost a whole quart of oil and the new plug he put in was gummed up bad. I just got it here from my nephews house and wondering what to do. Loss of power pretty bad he says. I have not rode it yet just started it and it is smoking a lot. What's next for this?
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GODZILLA
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GODZILLA 4/29/2020 11:06am
4/29/2020 11:06am
Learning how to rebuild a thumper.
Wink

Bon courage!
1
kborr
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kborr 4/29/2020 11:12am
4/29/2020 11:12am
What does that even mean?
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lostboy819 4/29/2020 11:52am
4/29/2020 11:52am
Take it to a shop, you are in over your head.
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kborr
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kborr 4/29/2020 11:57am
4/29/2020 11:57am
I am a 2 stroke guy.
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McDuff
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McDuff 4/29/2020 12:51pm
4/29/2020 12:51pm
Trade it for a quad?
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nskerb
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nskerb 4/29/2020 1:02pm
4/29/2020 1:02pm
Judging by your description I’d say your shits most likely fucked.
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zehn
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zehn 4/29/2020 1:08pm
4/29/2020 1:08pm
2 stroke guy or not, if you can't diagnose a TTR125.... lol
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SEE ARE125 4/29/2020 1:15pm
4/29/2020 1:15pm
Did you press and hold the reset button for 15 seconds?
jbonemalone
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jbonemalone 4/29/2020 1:19pm
4/29/2020 1:19pm
Have you tried unplugging it and plugging it back in?
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Jeremy Macbeth 4/29/2020 2:01pm
4/29/2020 2:01pm
With all of that smoke, I would take a close look at the muffler bearing first.
Dropbear
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Dropbear 4/29/2020 2:25pm
4/29/2020 2:25pm
Buy an Alta
TeamGreen
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TeamGreen 4/29/2020 4:09pm
4/29/2020 4:09pm
Someone's got some broken rings.
Fireblade2k
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Fireblade2k 4/29/2020 9:14pm
4/29/2020 9:14pm
Yup sounds like worn piston and rings and possibly scored cylinder. I've seen top end kits on ebay for like $35. with the cylinder! I'd personally stay with oem, but if money was tight, I'd maybe go that route. There are pdf files of the ttr125 service manual online for free download if you Google search it. Good luck and be meticulous, especially getting the timing marks lined up. First time doing it will probably take all day but it'll all be worth it when you fire it up and ride away smoke free.
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kborr
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kborr 4/30/2020 3:51am
4/30/2020 3:51am
Cool thx fireblade I figured that's what it was I'll tear it down and get it fixed.

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