I searched for alternative methods for starting my MB, but didn't find much on the subject. I have a disability which prevents me from doing much pedaling, and find it difficult to start my bike on cold mornings. I almost went with a pull starter, but didn't want to change to a wider crank or arms.
After a little research, I became familiar with one way bearings. Both Sears and Troy Built make an adapter for a drill which fits into various weed eaters and small engines for starting. The problem is that the drive apex is 5 sided. I ended up welding a 14 mm socket to another socket which fit over the 5 sided apex tightly, however the apex turned in the socket under load. I filled the socket with JB weld, and inserted the apex. Next I drilled a 1-1/8" hole in the mag cover to access the nut on the crankshaft for starting. I picked up a rubber hub cap plug (the kind used on semi trucks and trailers), to seal the hole after starting. I should note that these plugs are vented, and if you hold them up to the light you can see a very small hole in the center. They are easy to plug though. Now I can easily start my engine and let it warm up a little before riding.
After a little research, I became familiar with one way bearings. Both Sears and Troy Built make an adapter for a drill which fits into various weed eaters and small engines for starting. The problem is that the drive apex is 5 sided. I ended up welding a 14 mm socket to another socket which fit over the 5 sided apex tightly, however the apex turned in the socket under load. I filled the socket with JB weld, and inserted the apex. Next I drilled a 1-1/8" hole in the mag cover to access the nut on the crankshaft for starting. I picked up a rubber hub cap plug (the kind used on semi trucks and trailers), to seal the hole after starting. I should note that these plugs are vented, and if you hold them up to the light you can see a very small hole in the center. They are easy to plug though. Now I can easily start my engine and let it warm up a little before riding.
