Was struggling last weekend with plugs and a fueling problem, I thought I had an engine problem so just done a compression test, found I have around 200psi on both cylinders, is this too high for standard fuel? or is it something else.
Pulling strongly in first and second then sounded like it was just sucking air in 3rd, also had a plug die on start up
Okay just to play somewhat of the devils' advocate here but do you have another gauge to compare to this one? Any chance the gauge got dropped or bumped somehow?
What did the dead plug look like ? I suspect fuel flow for whatever the reason. Higher gears is where the engine is working the hardest and needs more fuel.