The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Carter yf 2100 ---- bog off idle

**dennislbrooks** · 10-27-2018, 04:35 PM

I have eliminated the ignition, timing, valve operation, fuel, float level and all vaccuum leaks. I have rebuilt the carb and cleaned every port , jet, etc. The squirter works. I have pulled it off twice and double checked the build. The ports on the bottom are both exposed to vaccum.

It starts and idles exceptionally well. Timing is set about 5 btdc. The advance works -checked with timing light. All plugs are firing. New HEI.

I believe the bog may be from shaft wear or carb is somehow not suited for a 235.

Anyone have any ideas of what I can further check. Or who can fix the throttle butterfly shaft clearance?

10-27-2018, 04:35 PM	#1
dennislbrooks Senior Member Join Date: Feb 2004 Location: Williamsburg, Ohio Posts: 1,764	Carter yf 2100 ---- bog off idle I have eliminated the ignition, timing, valve operation, fuel, float level and all vaccuum leaks. I have rebuilt the carb and cleaned every port , jet, etc. The squirter works. I have pulled it off twice and double checked the build. The ports on the bottom are both exposed to vaccum. It starts and idles exceptionally well. Timing is set about 5 btdc. The advance works -checked with timing light. All plugs are firing. New HEI. I believe the bog may be from shaft wear or carb is somehow not suited for a 235. Anyone have any ideas of what I can further check. Or who can fix the throttle butterfly shaft clearance? __________________ 1942 Chevy 1/2 ton Rod, 1959 GMC 1/2 ton Fleet Stepside, 1967 Chevy SWB K10, 1985 Corvette Coupe 4+3, 2015 Chevy Duramax reg cab 4WD W/T Last edited by dennislbrooks; 10-27-2018 at 04:38 PM. Reason: words