Discussion:
will not start and has weak spark

Hello I am in need of some help with my older Yale forklift that will not start Model number is GLP 050REJUA086
Serial number does not come up in computer but on identity plate is CH0045

It started out working fine then would randomly die. Progressed to only running for 10sec or so. Would restart right away but die again.
Now it will not start.

Weak spark to all cylinders and from the coil lead.

The fuel regulators have both been changed and appears to be getting propane.

Replaced the following
Cap and Rotor
Coil
Ignition switch
Spark plugs

Tested coil high tension lead and the cylinder leads and ok

12.8 volts from battery
engine block appears to be well grounded as tested at alternator, starter and ignition switch

didnt replace the ignition module because engine had some spark.

I am stumped on what next to do.

Any help would be much appreciated.

Thanks,
Mitch
  • Posted 30 Dec 2016 14:35
  • By mitch_u
  • joined 30 Dec'16 - 4 messages
  • British Columbia, Canada
Showing items 1 - 6 of 6 results.
I replaced the ignition module (actually called igniter) and it fired right up.

Thanks for responding.
  • Posted 6 Jan 2017 03:06
  • By mitch_u
  • joined 30 Dec'16 - 4 messages
  • British Columbia, Canada
I have been in touch with the local Hyster/Yale dealer. They think it is most likely an F2 engine but not confirmed. They just got back to me with a price of $120 for the module. I will pick one up and give it a go.
  • Posted 31 Dec 2016 04:49
  • By mitch_u
  • joined 30 Dec'16 - 4 messages
  • British Columbia, Canada
You need to check with a Yale dealer. List on the distributor module is $69.00.
  • Posted 31 Dec 2016 04:14
  • By BREWSKI
  • joined 10 Jan'12 - 1,699 messages
  • Nebraska, United States
I believe all the RE trucks used the FE engine.
  • Posted 31 Dec 2016 04:07
  • By BREWSKI
  • joined 10 Jan'12 - 1,699 messages
  • Nebraska, United States
Thanks for responding. This has been a real struggle.

The spark is barely visible between the electrodes on spark plug. It would not jump a 3/8" gap pale blue to yellow in color and no snap at all.

since I have replaced the other ignition parts I should try the module. Its pretty pricey the local automotive store here wants $225. Will try a few of the forklift suppliers.

Its been difficult confirming the actual engine in this forklift since the serial number is not good. There were 3 mazda options the D5, FE and F2 which were listed on the engine cover under the seat. Do you have any suggestions on how to confirm?
  • Posted 31 Dec 2016 03:47
  • By mitch_u
  • joined 30 Dec'16 - 4 messages
  • British Columbia, Canada
How do you determine it has a weak spark? Will it jump a 3/8" gap? Is it yellow and not blue? Can you hear it snap? The module can do funny things when failing, and they do fail.
  • Posted 30 Dec 2016 22:30
  • By mrfixit
  • joined 11 Dec'08 - 1,434 messages
  • New York, 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.

Rail King RK330
Coraopolis, Pennsylvania, United States
New - Sale
Hangcha CPYD25XH21JC
Flesherton, Ontario, Canada
New - Sale
Latest job alerts …
Saratoga, United States
East Syracuse, United States
Columbia, SC, United States
Indianapolis, IN, United States
Fact of the week
The use of "hello" as a telephone greeting is attributed to Thomas Edison. He is said to have suggested it as a simpler alternative to other greetings, such as "Do I get you?" or "Are you there?".
Global Industry News
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
Upcoming industry events …
October 6-9, 2025 - Detroit, MI, United States
October 6-9, 2025 - Detroit, MI, United States
November 14, 2025 - Melbourne, Australia

PREMIUM business

ROYPOW
Manufacturer of lithium forklift battery solutions, the global leader in the market of lithium batteries replacing lead acid batteries.
Movers & Shakers
Jeannette Walker Jeannette Walker
CEO, MHEDA
President, European Rental Association (ERA)
Chief marketing officer, JLT Mobile Computers
Chief executive officer, East Penn Manufacturing