the 45 needs a NGK CMR7A short reach plug ! the cylinder is a copy of a g45 Zen airplane engine. Take a standard plug and install in cylinder and see the reach is WAY over in center of dome !. This is why the motor is soooo hard to pull over. With this over reach the motors are in a state of pre ignition ALL the time with the small dome shape. PEOPLE CHANGE OUT YOUR PLUGS!!!!!. DDM Has these short reach plugs....THIS IS NO JOKE..
THIS IS NOT a problem of DAN @ rovan/ kingmotors but from china man. Don't mess with Dan over a stupid spark plug that he did not misfit, not his problem that the china man cant copy crap right..............................
THIS IS NOT a problem of DAN @ rovan/ kingmotors but from china man. Don't mess with Dan over a stupid spark plug that he did not misfit, not his problem that the china man cant copy crap right..............................
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