I recently bought an OS FL-70. As the piston starts to bed in I discovered that my Sullivan "hi-torque" starter is unable to turn the motor over. I have tried using a car battery instead of the usual gel-type sealed lead acid batteries. The starter did exerted more torque but still failed to turn the OS over.
In case some smart people on this otherwise excellent news group tries to sell me some VW hub caps - I have checked the OS by hand, it turns over perfectly.
What starter would you recommend?