Was in an old hardware store yesterday and they had a laminated sheet from NGK hanging near the plugs. Think it was dated 1998 (which would make sense considering the mower shown on it was a PT mustang with the 2 piece red/black cowl with the hard to find grille.)
It said that NGK is now the official OEM of Victa and that the previous issues of plug fouling and shorting have been solved by 'Victa and NGK developing a new plug'
BPMR4A.
It said that they suggest using this plug in all previous model victas needing a CJ8/BM6A.
Now, I have had Victa's come over the bench with CJ8Y's in (and I knew this change was made around this time), but if a BM6A = CJ8, a BPM4A should equal something like a CJ10Y (never seen one).
Have never seen this before and have no issues with the old plugs, but why did they state it?
The only one time I have had an issue with plug fouling/cooking was when working a PT to its absolute limits, full throttle for 30+ minutes though high grass.
Was the higher heat range to compensate for the rich mixtures many first time home mixers were now facing once BP Zoom went out?
