I have a 2009 15hp, tiller steer. I recently rebuilt the carb and changed the accrlerator pump diaphram. I need to adjust the diaphram. I found how to adjust the throttle linkage in my nanual, but not the accrlerator pump, or mixture screw? I think the mixture screw is behind a plug? Or is it not adjustable? Thanks for your help gettin my river rat goin again.
