Have you checked the breathers in the cam covers? These are prone to blocking up and may cause pressurisation of the crankcase, forcing oil past the valve stem oil seals.
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7,925th ZT-T to run off the production line, out of 8,249
The 1,709th ZT-T 190 + to be made out of 1,756
The 103rd ZT-T in Mica Blue (Ignition) (code: JGY) to be made out of 160 Mica Blue (Ignition) ZT-Ts
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