Hi,
unfortunately i don't have the solution for your problem but i have just the same problem on a pinto and a wosp starter.
It's not fully engaging and won't retract. 135 teeth flywheel and 10 teeth wosp starter, same problem with a 11 teeth wosp starter which is slightly offset.
I ran it without the dust plate but i can't believe that this is the reason for the problem.
Did you came to any solution???
Thanks and hope to hear from you soon.
Cheers
Lars
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