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

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Linde C4230TL5
Balling, Denmark
Used - Sale
Taylor TX330S
Morgantown, Pennsylvania, United States
Used - Sale & Hire
USD159,500
Global Industry News
edition #1267 - 5 February 2026
In this week’s Forkliftaction News , we report on the January Logistics Managers' Index - a bellwether of the US logistics sector - which has jumped 5.4 points in a month, below the all-time average but still indicative of consistent growth... Continue reading

PREMIUM business

Cascade Corporation (World HQ)
Leading manufacturers of attachments, forks and related technologies for forklifts and AGVs.
Movers & Shakers
Alexandre Guiard Alexandre Guiard
SVP business solutions for the Americas, Dematic
Director of marketing, Big Joe Forklifts
Managing director , Heli Canada
Chair of the board, LEEA (Lifting Equipment Engineers Association)