Proper spark plug

Joined
Dec 7, 2020
Messages
18
Trying to decide which Spark Plug will work best for my 1992 40hp Johnson model# ( vj40tlenj ). Chart states ql78yc for all vro/oms equipped motors. The vro has been removed for some time now, ever since I’ve owned it. I mix oil with gas. Would this mean that a different plug should be use or is the ql78yc still the right plug? I just replaced with ql78c. Some advice would be very much appreciated and helpful. Thanks
 
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