Block pitston Do'R 12mm for Dirt Bike / Pit Bike / Mini Moto
Ideal for cylinder heads with a diameter of spark plug 12mm (Ex : cylinder head 125YX, engine 125YX thread...)
The block, pistons is a practical tool to disassemble, for example the ignition lock of your Dirt Bike. He is in the cullasse,
in place of the candle and goes in abutment against the piston. The piston Dirt Bike and thus blocked, and allows you to easily remove the rotor of the ignition system.
As soon as the block is screwed to the piston, thus turning the rotor ignition, carefully, until the piston moves to an end position against the block piston.