My Yanmar is running very rough for about 5 seconds after starting then smooths out:
It started doing this immediately after I replaced throttle and shift cables, replaced coolant hoses, replaced fresh water pump, and removed injection pump access plate to clean/lubricate the throttle lever. I did not adjust the throttle stop screw.
I took it out for a motor cruise last weekend for about 4 hours and it ran normally during that time at about 2800rpm.
It started doing this immediately after I replaced throttle and shift cables, replaced coolant hoses, replaced fresh water pump, and removed injection pump access plate to clean/lubricate the throttle lever. I did not adjust the throttle stop screw.
I took it out for a motor cruise last weekend for about 4 hours and it ran normally during that time at about 2800rpm.