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[CrossadaMan]

Hello,

My name is Michael, im from Portugal, and have very recent a YTZ250 of the year 1986 full stock.

Best regards

[tulsamike3434]

Welcome Michael from Portugal! glad ya stopped by!

[CrossadaMan]

Hello masters of the forum, how can i get some help with technical info about my ytz250 of 1986?
My bike is sucking all the oil from the gearbox and getting out from the stock muffler. I open last night the right side of the engine, take out oil, starter, and open the crank case cover and see that are a big hole that goes to the cilinder that is totaly open, is it supose to be that way?
Such the crank case inside, or the hole in crack it looks like it sould have a pin or something, because that way the cilinder sucks the oil from the crank.
In my first thinking i was looking for a bad crank seal, but all is new inside, so maybe the last owner forgot to put inside something that i can´t find in tri-z250 service manual before we close the engine. In the exhaust it goes out black oil, in big quantitty, and the low rpm the big almost can´t run, only in high rpm the engine show power.

Can anyone help me please? I have pictures to help my question.

Best regards

[JasonB]

nope sounds like a typical tri-z to me ;) lol sorry had to say it man! Welcome! Sorry I dont have any good input for you on your issue, im sure someone else on here will though! create a seperate thread on it in the worldclass newb help forum you will get some good answers