'09 backfire
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Cruiser
Joined: Jul 2009
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'09 backfire
hello,
had what sounded like a "backfire" out of the AC the other day. the bike is completely stock at this point and wondering why it would do that? also sounded once like a backfire out of the pipes but different day.
anyone experience this? trike goes in 25 september for the 1000 mile service wonder if this should be looked into?
thanks,
david
socal
had what sounded like a "backfire" out of the AC the other day. the bike is completely stock at this point and wondering why it would do that? also sounded once like a backfire out of the pipes but different day.
anyone experience this? trike goes in 25 september for the 1000 mile service wonder if this should be looked into?
thanks,
david
socal
Ultimate HDF Member
Joined: Nov 2005
Posts: 5,926
Likes: 138
From: NE Ohio
A little pop out of the AC can happen from time to time. I've only once had a bike that popped out the exhaust and that was a 05 Electraglide Classic. I was starting it up and pow a healthy bang from the exhaust, one and only time it did that.
Club Member
Joined: Aug 2007
Posts: 10,393
Likes: 2,060
From: N. Atlanta Burbs
Hey guys... I took the liberty to copy this out of the SEST manual. You may find it interesting and it should explain the intake pop.
Symptoms of a Rich or Lean AFR
The tuner should be familiar with the symptoms of an overly rich or overly lean AFR. The symptoms
are the signal to us that we have not achieved maximum performance that we need to adjust the
EFI.
Lean running symptoms
Bike hesitates when throttle is increased
Bike runs jerky or surges at steady throttle openings
Engine detonates, (knocks) when accelerating
Engine spits back or coughs through intake system
Exhaust pipe deposits are light gray in color
Bike runs poorly when cold engine runs better as it warms up to operating temperature
Spark plug color is white
Fuel consumption is abnormally low
Rich running symptoms
Engine blubbers when throttle is increased
Bike emits black exhaust smoke, (a little black exhaust smoke is normal when accelerating
hard or operating engine when cold)
Exhaust pipe deposits are dark, or black in color
Engine blubbers at steady throttle
Engine fouls spark plugs
Bike runs well when cold engine runs worse as it warms up to operating temperature
Spark plug color is black
Fuel consumption is abnormally high
Symptoms of a Rich or Lean AFR
The tuner should be familiar with the symptoms of an overly rich or overly lean AFR. The symptoms
are the signal to us that we have not achieved maximum performance that we need to adjust the
EFI.
Lean running symptoms
Bike hesitates when throttle is increased
Bike runs jerky or surges at steady throttle openings
Engine detonates, (knocks) when accelerating
Engine spits back or coughs through intake system
Exhaust pipe deposits are light gray in color
Bike runs poorly when cold engine runs better as it warms up to operating temperature
Spark plug color is white
Fuel consumption is abnormally low
Rich running symptoms
Engine blubbers when throttle is increased
Bike emits black exhaust smoke, (a little black exhaust smoke is normal when accelerating
hard or operating engine when cold)
Exhaust pipe deposits are dark, or black in color
Engine blubbers at steady throttle
Engine fouls spark plugs
Bike runs well when cold engine runs worse as it warms up to operating temperature
Spark plug color is black
Fuel consumption is abnormally high
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Cruiser
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david
socal
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Ultimate HDF Member
Joined: Nov 2005
Posts: 5,926
Likes: 138
From: NE Ohio
happened in town ridding, i keep the RPMs up and run it hard. not going up or down hill and not shifting. will get it recorded at the 1k service. my pipes are turning blue and gold so i assume the thing is running lean and hot as mention on the board. this trike is a world of difference than a 2 wheel harley.
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