Hard to start | 356 Speedster, 550 Spyder, Replica, Automotive Community

This is for a 2007 VS with 18,000 miles. She was running fine and then the other day it took a while for it to finally start. Once started, seems to run fine, maybe a little sluggish, but pops a little on deceleration. I have to pump the gas and crack it for a minute or two before it starts, then a puff of smoke comes out of the exhaust. Fuel line? Carbs? Spark Plugs? Any ideas?

9/25/109:34 AM

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This is for a 2007 VS with 18,000 miles. She was running fine and then the other day it took a while for it to finally start. Once started, seems to run fine, maybe a little sluggish, but pops a little on deceleration. I have to pump the gas and crack it for a minute or two before it starts, then a puff of smoke comes out of the exhaust. Fuel line? Carbs? Spark Plugs? Any ideas?

barncobob

deacceleration pops are usually exhaust caused, snug up all the nuts where muffler connects to head and elsewhere.

9/25/1011:32 AM

Troy Sloan Supporting Member

In my case...leaking exhaust valve in the number 3 cylinder. Compression and leak down tests will help sort out the problem.

9/25/1012:16 PM

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