what to set gap on j8c spark plug
Champion J8C
factory gap is 0.027" to 0.033"
Champion J8C
Our Techumseh 8HP has a Champion J8C
The correct spark plug is a Champion RCJ8Y.
According to Champion, the correct gap varies depending upon the application. Most applications show an OEM gap of .025" but a few had an OEM gap of .030". I would set it slightly on the wide side of .025", and it will be good enough.
The Champion J8C spark plug is often replaced by the Champion J8 or equivalent models from other brands, such as NGK or Bosch, that match its specifications. When replacing, it's important to ensure that the new spark plug has the same thread size, heat range, and reach to maintain optimal engine performance. Always consult the engine manufacturer's specifications or a knowledgeable technician for the best replacement option.
According to Champion spark plug applications, the correct gap for 1992 Nissan pickup 2.4L engine is .044
j8c, its same thing just the copper plus hence the c at the end, same dimensions and everything but more efficient
Per Champion spark plug applications chart, the gap for 6hp Tecumseh engine is .030
GAP .030"
.030" Champion RJ19LM or J19LM for manual, go to: http://www.disruptit.com/manuals/L0020135.pdf