Requires:

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  8mm wrench or 4 way wrench
  
  


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   After running for a while, the element might become dark brown. It is carbon around the surface of the glow plug element and may cause the engine hard to start and running rough. Replace or try another colder or hotter type glowplug as necessary.
  
  


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  The following symptoms may be caused by improper choosing of glow plug type.
  
  

1. Too cold: Poor throttle response at bottom end, unsustainable idle, and a slow engine acceleration and the engine gets too cool at idle.


2. Too hot: After running the engine at the highest speed for a while, engine hesitates to slow down to a stable idle when abruptly close the throttle to the lowest, the glow plug is burnt very easy and engine temperatures is high.