Ive heard from Harley owners that the new EFI engines have to be dynoed with a new chip or MAP to open up the pipes and they dont have any problems after that.I hope to buy a new Harley next year.Yes I will open up the pipes somewhat because they sound like a sewing machine now.If Im gonna ride a Harley I want it to sound like one.Yeah I know this is a sore subject with a lot of folks these days.But Im not gonna make it crazy loud and I will show respect at certain times and areas.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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