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Makotosun

1978 yz250E oversize question.

  • Joe1028
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1978 yz250E oversize question. was created by Joe1028

Hi,
There seems to be enough liner at cylinder base/ skirt area but it looks thinner in some ports is this an illusion? Haha , or is the aluminum cast over sleeve in ports?
i would like to know if i can go to .080"(2mm) over...
Running a wiesco piston at .0035" clr and bike was running great all season until last cooler race it seized.
Does amy one know wjat other year cylinders may work?
Thanks, , JOE


1978 yz250E
 
Last edit: 11 Dec 2025 21:23 by Joe1028.
11 Dec 2025 17:57 #1

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