Spark plug gap



Wrench

Well-Known Member
Joined
Nov 14, 2018
Messages
3,087
Try.030 for your 100cc mine lags and pops at .025


For the engine to lag and pop because of the S/P gap. The S/P would have to be old and eroded or the S/P gap was set below recommended specs
New plugs have sharp edges that help the spark .025" is recommended and fine
If the S/P was old and eroded, Yes, increasing the S/P gap to .030" will make a hotter fatter spark to ignite the Air Fuel Mix properly
But it takes more Elec. to make a hotter fatter spark, demanding more Elec. from the Elec. system
 
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