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Old 12-21-2015, 09:36 PM   #15
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Idle Drop

Does the carb have an electric idle solenoid that pushes against the throttle lever with an adjustment screw? These were a common idle adjustment.. If it does then it is adjusted too low. It should hold a high idle when first started and then drop the idle speed. If it adjusted too low it will not have a fast idle and the idle speed after warm up will be between too low and not running.

Mike & Holly 1999 Monaco Diplomat 38A-1998 Toyota Landcruiser
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Old 12-22-2015, 07:29 AM   #16
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Could it be the Gas Cap itself? Mine has 2 different type caps on the 2 tanks


1982 Pace Arrow 30ft.
KarKaddy SS, Toad:99 Concours
Lilly and Rubie Our 4 legged Kids & Tim & Joe
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Old 12-22-2015, 07:39 AM   #17
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As Tim said, it could be a non-vented gas cap. Could also be the coil going bad.
Assuming the carb and choke adjustments are correct, and choke is working properly?
1985 Gulf Stream 34' Sun Stream
1997 Newmar Mountain Aire 3757
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Old 12-26-2015, 06:21 AM   #18
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Location: Castle Rock, CO
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I hope everyone had a great Christmas and Thank you to everyone that responded. Lots of good ideas for me to check out. Once it warms up, I will have to start tinkering with it and see what I can find. I drove it to get the emissions test done the other day and it did pass..yoo Hoo! I drove it several miles and it did display the usual symptoms and I just kept a little gas on it and it did fine but I need to get to the bottom of the problem. Otherwise, it runs real smooth. It has to be something simple but I'm going to take everyone's suggestions and go down the list. I'll keep y'all posted! Have a great New Year!
'74 F350 44K,'79 11' Mitchell Camper, MINT All Original
'79 Mitchell 25' Class C, 460 46K, MINT All Original
'97 Rexhall Aerbus, 60K, 460, F53, MINT All Original
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Old 12-26-2015, 02:35 PM   #19
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Just throwing this out. If there is a hole(corrosion?) in the fuel suction line from the tank pickup to the fuel pump on the engine it will idle and run low speed fine but when it needs more fuel will not get enough because of air bubbles in the fuel it will not be pumped properly. As soon as you drop back to idle it runs fine again. Try the separate fuel tank and line to see if the problem goes away. Just one more thing to look at.

2003 Georgie Boy Cruisemaster-F53 Chassis towing 1998 Tracker

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class c, ford, rust

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