Discussion:
misfire, backfire, then dies

This morning one of our forklifts wouldnt idle, it would misfire when starting for a few seconds then die. When trying to press the accel. pedal it would immediately backfire and die. After looking at it i noticed that when removing 1 plug wire from its sparkplug it would start right up. so i replaced the spark plug. when i start it with the spark plug wire disconnected it runs fine as soon as i connect the wire to the plug it misfires and dies. any idea?
Update:
When i remove the 2nd cyl spark plug wire from the cylinder it runs fine as soon as i slide the wire down the sleeve before i get to the plug it revs up and dies.
Is this a possible exhaust valve problem.
  • Posted 31 Jul 2020 01:33
  • Modified 31 Jul 2020 02:52 by poster
  • By rclfmaint
  • joined 12 Jun'20 - 10 messages
  • Virginia, United States

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edition #1237 - 3 July 2025
While innovation and new technology are evolving at what seems to be an ever-increasing pace, the need to capture the data (telemetry) from this tech, and the ability to utilise it (telematics) for efficiency and cost savings, is one area attracting more and more attention ... Continue reading