Discussion:
Clark C500-25 Forklift ignition not spark

Hi everyone,
I am back again with another problem after replacing spark plug and point inside the distributor cap. The forklift was hard to start for few weeks, so I decided to get the Clark tune up kit and begin to make my replacement. After the change out tune up, the lift start up right away. Then I decided to replace the temperature gauge on the lift due to it wasn't working, after removing it and waiting for the new gauge to come in from Clark's, I went out and try to crank the fork lift now it will crank but will not spark. I have a spark tester inline on spark plug, but cannot see any spark. I have 12.49 volt at the coil (+) and roughly 10.34 volt out of the (-) side. The gap point set at.022 and spark plug set at.025. Anyone whom have ran through this problem before, please shine some light into what I did wrong, that causes this no spark problem.
  • Posted 22 Aug 2015 03:30
  • By Protech2
  • joined 30 Oct'14 - 10 messages
  • Arizona, United States
Showing items 1 - 2 of 2 results.
The capacitor (condenser) is new and check to grd ok. I just went to check continuity grounding against Coil case to any metal parts of the body of forklift, that check out good. This is how I have the ignition coil and distributor wires: from battery (12+) go to starter then from there it goes to amp/volt gauge black 10ga wire, coming out of the amp/volt gauge red 10ga wire go to alternator, there's also another #12ga red with white go to ignition switch, so everytime I turn on the switch 12v power provided to the (+) side of the coil this also provide power to turn on the LP coil to open up ( not sure if this is right) but it was my thinking that if I provided power to both the coil ignition and to the LP coil if I have spark it would get combustion. So not sure where I went wrong on this. Any Help to clear this problem would be greatly appreciated.
  • Posted 22 Aug 2015 08:34
  • By Protech2
  • joined 30 Oct'14 - 10 messages
  • Arizona, United States
you don't mention the capacitor inside the distribor cap, it needs to be well grounded as does the coil case. the voltage on the side of the coil that goes to the distributor point (-) should vary from near battery voltage to shorted to ground as the points open and close.
  • Posted 22 Aug 2015 07:59
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"

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.

Hangcha CPYD35XH21F
Flesherton, Ontario, Canada
New - Sale
Taylor TX175
Morgantown, Pennsylvania, United States
New - Sale & Hire
Upcoming industry events …
October 29-31, 2025 - Marina Bay Sands, Singapore
November 26-27, 2025 - Budapest, Hungary
April 8-10, 2026 - Jiangsu Province, China
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Global Industry News
edition #1243 - 14 August 2025
In this week’s Forkliftaction News , we look at more financial reports with one major producer recording a “significant” decline in Q2 bookings to report an operating loss of USD8.5 million, while another had a strong quarter “despite increased trade tensions and a challenging geopolitical landscape”... Continue reading
Hyster-Yale reports Q2 operating loss Cleveland, OH, United States

Showcased in the Virtual Expo

Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Hyster-Yale reports Q2 operating loss Cleveland, OH, United States

Showcased in the Virtual Expo

Movers & Shakers
Dwight Klappich Dwight Klappich
Strategic advisor, Roboteon
CEO Americas, Hai Robotics
Executive director, NT WorkSafe
Chief executive, Logistics UK