Any suggestions on what might be a causing a rattle or knock in my outboard? Seems to still be running good. It does bogg down sometimes for a few seconds when advancing the throttle, but it runs great other than that. If I slowly speed up it won't bogg at all. The compression tested at 110 or 115 on all cylinders. The mechanic said nothing seemed loose. Is it time for a complete overhaul or could this be something less severe?<br /><br />Thanks
