The "R" just designates a resistor plug. You are fine with the J19LM.
Champion J19LM or RJ19LM
Rj19lm or j19lm
Rj19lm
Spark Plug (Gap: .030) Champion RJ19LM or J19LM according to the user manual...and what I use.
I have used a Champion RJ19LM or J19LM, both work fine.
champion rj19lm or just a regular j19lm will work just fine in that engine
on the back of the plug package it has : replaces CJ8, RCJ8, J19LM & RJ19LM. hope this helps.
champion rj19lm or just a regular j19lm will work just fine in that engine.
.030" Champion RJ19LM or J19LM for manual, go to: http://www.disruptit.com/manuals/L0020135.pdf
The J19LM and QJ19LM are Champion brand spark plugs used for garden machinery. The difference between them is their resistors, the J19LM use a regular resistor while the QJ19LM uses a CDI resistor.
Rj19lm
Champion spark plug RJ19LM is for lawn mowers or similar equipment. The standard gap is .030 inches or 0.76mm.