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Loyd Nix · 12-30-2014, 01:34 PM

My 29 Sport Coupe was running fine until it sat for a couple of months but now it is difficult to start and when it finally does it coughs and backfires and wants to stall until it warms up (about 10 minutes) then she runs fine. I have ruled out the distributor and timing, replaced the carburator the replacement acted the same as the old one, drained the fuel tank which had a good flow and have installed an inline fuel filter. The last attempt was to regap the plugs which seemed to be a bit sooty so I wire brushed them. It does not over heat so I have ruled out the timing.
Any suggestions short of removing the gas tank?

12-30-2014, 01:34 PM	#1
Loyd Nix Senior Member Join Date: May 2010 Posts: 105	Rough running cold. My 29 Sport Coupe was running fine until it sat for a couple of months but now it is difficult to start and when it finally does it coughs and backfires and wants to stall until it warms up (about 10 minutes) then she runs fine. I have ruled out the distributor and timing, replaced the carburator the replacement acted the same as the old one, drained the fuel tank which had a good flow and have installed an inline fuel filter. The last attempt was to regap the plugs which seemed to be a bit sooty so I wire brushed them. It does not over heat so I have ruled out the timing. Any suggestions short of removing the gas tank?