Oil getting past decompression plug hole after hotcams mod

[MTS II]

Did the hotcams mod and plugged the decompression hole with one of the plugs off of eBay. After the first ride yesterday I noticed that oil is getting past this plug it appears. Could the o-ring seal on the head be damaged? Seems to happen after riding for at least 30 mins

Thanks for the tips!

[642MX]

You need to replace the seal. It probably got torn while removing the decomp lever.

[02WR426Cali]

I think you take the seal out when using one of those plugs. The plugs use an o-ring I believe. I just got a new seal and cut up the stock lever to make it look like a plug when I did mine.

[grayracer513]

There are two versions of the plugs made for that hole. One uses an O-ring and requires the original seal to be removed. The other uses the OEM seal as the shaft did. How you correct this leak depends on which setup you have.