Discussion:
Hyster H80XM LPG

Hi, I am having a issue with the forklift stumbling. Starts and runs fine but at idle it will stumble like it's about to die for about 1 second, then run fine again. This happens about every 5 to 10 seconds. If I give the unit throttle it will rev up, but it still stumbles, about every 5 to 10 seconds at higher RPM's.

Thanks in advance for the help.
  • Posted 22 Nov 2019 11:06
  • By Cainsable
  • joined 22 Nov'19 - 2 messages
  • California, United States
Showing items 1 - 3 of 3 results.
some of these units have what they call a dashpot on the throttle.
if it is not adjusted correctly it can allow the throttle to drop too low or have a surge in it like what you are describing.
On the higher rpm's i'm not sure what that might be unless it has a mechanical governor on it, if thats been tampered with it might be out of adjustment causing that surge.
  • Posted 3 Dec 2019 16:53
  • Modified 3 Dec 2019 17:03 by poster
  • By swoop223
  • joined 23 Mar'12 - 3,692 messages
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com
Serial number is K005D02373X. It is run by propane(LPG). Thanks.
  • Posted 30 Nov 2019 04:31
  • By Cainsable
  • joined 22 Nov'19 - 2 messages
  • California, United States
Serial number please it will help to be able to work out what model fuel system is fitted
  • Posted 23 Nov 2019 05:25
  • By lifter01
  • joined 4 Jul'09 - 462 messages
  • West Yorkshire, United Kingdom

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.

Movers & Shakers
Todd J Doxsee Todd J Doxsee
National dealer development manager, Castle Equipment Company
Sales operations, Heli
Chief financial officer, Cyngn
Executive vice president and chief commercial officer, East Penn Manufacturing
Fact of the week
Brothers Adolf ("Adi") and Rudolf ("Rudi") Dassler split their shoe company after WWII due to a bitter feud, and established the rival companies of Adidas and Puma. Their personal animosity and business rivalry divided their German hometown Herzogenaurach. The town became known as "the town of bent necks" due to the intense loyalty to each brand.

PREMIUM business

Hawker Powersource, Inc.
HAWKER® offers a range of hybrid motive power solutions customized to adapt as your operation's needs change.
Global Industry News
edition #1251 - 9 October 2025
In this week’s Forkliftaction News , hydrogen power is a theme as we report on the US marking its 10th annual National Hydrogen and Fuel Cell Day, an initiative to promote the benefits of the clean energy source... Continue reading
Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY