Possible Carb Issue?

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   I have a 1979 Ski Nautique Ford 351W. This weekend I had, what I think, were some issues with the carb. The carb is a Holley and original from what I can tell. It would start up great While in neutral I would give it some gas. Engine sounded like it had trouble getting rpm's up to where throttle was. RPM's would go up and down without me moving the throttle. This would happen for about 30 seconds to a minute. Then would come like a backfire noise from the carb and a little smoke would puff out of carb. To me it sounded like it was choking on its own fuel. Not sure if it is a vacuum leak or what. I wanted to turn to all the experts here. I greatly appreciate any feedback.

Rob

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rschweller Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: April-22-2014 Location: Kansas Status: Offline Points: 17	Post Options Post Reply Quote rschweller Report Post Thanks(0) Quote Reply Topic: Possible Carb Issue? Posted: July-07-2016 at 3:28pm
	I have a 1979 Ski Nautique Ford 351W. This weekend I had, what I think, were some issues with the carb. The carb is a Holley and original from what I can tell. It would start up great While in neutral I would give it some gas. Engine sounded like it had trouble getting rpm's up to where throttle was. RPM's would go up and down without me moving the throttle. This would happen for about 30 seconds to a minute. Then would come like a backfire noise from the carb and a little smoke would puff out of carb. To me it sounded like it was choking on its own fuel. Not sure if it is a vacuum leak or what. I wanted to turn to all the experts here. I greatly appreciate any feedback. Rob

Hollywood Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13513	Post Options Post Reply Quote Hollywood Report Post Thanks(0) Quote Reply Posted: July-07-2016 at 5:21pm
	Choke plate open or closed? Leaky boosters?

SNobsessed Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102	Post Options Post Reply Quote SNobsessed Report Post Thanks(0) Quote Reply Posted: July-07-2016 at 6:33pm
	Also check that timing is advancing correctly.
	“Beer is proof that God loves us and wants us to be happy.” Ben Franklin

DayTony Members Profile Send Private Message Find Members Posts Add to Buddy List Gold Member Joined: June-30-2013 Location: Salem MA Status: Offline Points: 832	Post Options Post Reply Quote DayTony Report Post Thanks(0) Quote Reply Posted: July-08-2016 at 1:24am
	Sometimes a good squirt of carb clean on the air bleeds can save the day and get you back out on the tube.
	1988 Barefoot nautique-454

gun-driver Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: July-18-2008 Location: Pittsburgh, Pa Status: Offline Points: 4127	Post Options Post Reply Quote gun-driver Report Post Thanks(0) Quote Reply Posted: July-08-2016 at 6:22pm
	Have you done anything to it since the last time out. (Plugs, wires, dist cap)???

Possible Carb Issue?

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