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Losing one cylinder at idle and steady rpm when warm

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Old Jan 7, 2015 | 09:52 PM
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From: Wickenburg
Default Losing one cylinder at idle and steady rpm when warm

2004 Sportsman 700 drops one cylinder after warming up when idling or running at steady rpm. Runs great on hard acceleration or when pulling hard.
Have installed new air filter, spark plugs and fuel lines.

Ideas? Could it be coil?
 
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Old Jan 8, 2015 | 02:36 AM
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Carb or efi? Check that you have spark to both cylinders after it warms up and starts running bad,plus check compression.
 
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Old Jan 8, 2015 | 09:05 AM
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EFI machine. Compression within 2 lbs of recommended per manual. Will check the spark while running but seems to have spark on accel and none on one cylinder when idling as the smell of raw gas is quite noticeable.
 
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