i never seen a starter set up like this , use to work on car's but this looks crazy to me . my starter spins and makes a grinding noise, well not really a grind i cant describe it . ok pulled starter and it works fine, i took off side cover and it looks like it dosnt hit the other gear to turn over the engine. some guy told me a starter clutch ,what the heck is a starter clutch and how do i install 1