Reply To: Jetting a GT125R – 2017 ..?
Compression-test: 12,5 Bar (F & R) = 175 psi
That’s very very good!
Is this when engine was hot? and both spark plugs were out?
Can you wait overnight, wake up in the morning and get service manual, open top valve covers.
Get feeler gauge that is in “.mm” (0.05mm to 0.40mm)
And let us know clearances for each valve? Dont do this when engine is warm, it must be overnight cold.