1976 SN starts hard when hot |
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Hydrofoilmaniac
Newbie Joined: April-15-2006 Location: United States Status: Offline Points: 17 |
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Posted: July-07-2008 at 9:56am |
I have 1976 SN with a 351 W that starts hard when hot. That is, on warm days and after the engine is warmed up, it often seems like it floods itself after sitting off for 4-5 minutes.
I installed a carb kit and new floats last season but it still has the same problem. It runs perfect on the water but does hesitate a little out of the hole once in awhile. Any advice would be greatly appreciated. |
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kman
Senior Member Joined: May-30-2008 Location: United States Status: Offline Points: 161 |
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I have a '76 Southwind with a 351. It had a hesitation when slowly throttling and also has a hesitation when flooring it from idle to full throttle. My mechanic friend looked at it and it was a simple electric choke adjustment. My choke was not opening up at the right time making it run to rich in fuel. This also made it hard to start after hot. We adjusted the choke to where the choke plate opened up at the correct time and it runs like a charm. The elec. choke can be adjusted easily by loosening 3 set screws and turning the plastic choke module. Do it while the engine is on and at running temp. From what I understand, you want the choke plate to be wide open after the engine is at running temp. Every engine is different though, so you might have to tweak it until yours it right. Hope that helps.
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Kirk
1976 Southwind 20 Eagle Mountain Lake Fort Worth |
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Check the choke, but also verify the timing.
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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