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Old 05-17-2012, 08:46 PM
thatsmrmastercraft's Avatar
thatsmrmastercraft thatsmrmastercraft is online now
MC Master Poster
Join Date: Sep 2008
Boat: 1977 Stars & Stripes
Location: St. Paul, MN
Posts: 16,640
Agreed more info would be good. Your carb is old enough to have had the power valve ruptured from a backfire. Holley part #125-500 is an update for 1989 and older carbs. To test your power valve, while holding the large end, try to turn the small end. If it will turn, the valve is shot. If it won't turn, the valve still works. A blown power valve goes to full rich and the boat is barely drive-able, and will be leaving some black smoke.

Another possibility for running rich is a choke set too rich. Your choke should open fully within one minute of start-up.
Package Deal:
Two Chrome 10 hole wheels with Kenda Loadstar radials.
Mounted, balanced and delivered.
With ST205/75R14..........$309
With ST215/75R14..........$346

PM or email me for tire, wheel or package pricing.

Parts, labor and return shipping included

Holley Marine 4160 Freshly Rebuilt $349 - Delivered


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