Trying to fix neighbor's 351 in a well- maintained 1979 Nautique. Holly 4600 series carb professionally rebuilt for this problem a year ago - only about 10 hours on the rebuild and problem is back. It looks like too much gas dripping out the primary venturis at idle, but idles pretty good, but...
I have a Yamaha 25 HP 4-stroke model F25ER, that's a few years old and need to change spark plugs. I know it takes an 18mm, deep socket wrench, but the clearance to the casting around the plug is really small and I haven't found a deep socket or spark plug wrench that is thin-walled enough to...
