Hyster H40H:
Lpg wont start.

Turns over but wont start. Got fire. Disconnect feul line to carb and creat vacuum and it seems to have good feul. Compression decent.
  • Posted 11 Dec 2020 15:18
  • Discussion started by Doug_Savoy
  • Louisiana, United States
Doug Savoy
Showing items 1 - 3 of 3 results.
You said spark is good in your first post. Then in your reply, you said "I still think it's a weak spark". How can anyone assist in this troubleshooting?

If you have a weak spark, make sure that the complete ignition system is good (coil, distributor cap and rotor, if applicable, spark plugs & wires). If they are all good, check for battery voltage & ground at the coil. Check this at rest and while cranking (what is it dropping to?). Do you have weak spark at the plugs, but good at the coil? What is the whole situation here? How far will the spark jump?
  • Posted 28 Dec 2020 05:18
  • Reply by PorkChop
  • Ontario, Canada
I have taken the whole feul system apart and cleaned and check everything in my knowledge. I still have what I think is a weak spark. I have replaced the ignitor and spark plugs. Oil pressure switch and magnetic feul shut off have been deleted from the unit. Thanks for the input. It is deeply appreciated. Any other ideas. Coil new too.
  • Posted 12 Dec 2020 02:25
  • Reply by Doug_Savoy
  • Louisiana, United States
Doug Savoy
Please, check restricted fuel lines, insufficient fuel from pump, carburetor choke valve inoperative (check and adjust carburetor choke valve , so that will open and close completely), carburetor mixture too rich or too lean.
hope this help
  • Posted 11 Dec 2020 15:40
  • Reply by jose_a
  • sonora, Mexico

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