Re: 4 Stroke EZM Silentdrive Boardtrack Attempt
I would suspect the mounting holes in the side of the HF motor are 8 MM. The stock mounting holes on the Silent drive are 6 MM or 1/4". You will need to drill new holes in the mounting plate as they neither match the pattern or size. It is important to make sure the hole for the crankshaft is centered to keep the distance the same to insure the clutch will operate correctly. I would mount the motor, then determine the location of the new holes to make sure everything clears the various parts of the motor before drilling.