Could it be a change of Gas manufactuers?
I have ran nothing but 76 mid range octane 89
put 76 octane 87 in about two weeks ago by accident.
I heard a noise this past weekend that I either never noticed before or it could be new. I needed to back off the throttle a bit due too some big rollers, I was travleing about 52 mph at say 4900 - 5000 rpm. When I backed off I heard a dadadadada sound then i open it back up and all wa fine.
The motor seems to be running great, my partner said it semmed like a air pocket sound and not too worry.
Please ket me know what you think
700 lx 115 Merc. 22 pitch SS Lazer ll prop