olympia evolution type "B"

[Wayne-Ooo]

But I'am still thinking it's the spin lever.

During normal play, when you pull the spin lever, the magnet in the coin mechanism releases the metal plate and the coin mechanism will not accept or register tokens. After pushing all 3 stop buttons, the magnet then pulls the metal plate in and the coin mechanism is ready to accept tokens again. This sequence happens on every spin.

[Wayne-Ooo]

You could also bypass the the "Max Bet" button and the "Spin Lever" by going directly into the wiring.

The connections for these are on the circuit board on the inside of the front door. The 5 wire, orange connection is the Bet button. Red,orange,blue,black and yellow wires. The black and yellow wires are what makes the "Max Bet". You could splice into those, with jumper wires, and touch them together. It would be the same as if you pushed the "Max Bet" button.

The light blue connection is the "Spin Lever". Also a 5 wire connector. Red,orange,green black and yellow wires. The black and yellow wires on this connection are also the wires you want to splice into.

If you splice into the wiring and your machine works, then you would know you have a bad button or spin lever.