I had a 115 Ficht which called for XC12PEPB plugs. I have 2 sets left from before I bought my 115 E-Tec. After swapping/indexing the new XC12PEPB plugs in my E-Tec, I noticed that what was in there wasQC10PEPB. Can I leave these 12's in for an outing or two until I can get hold of some 10's or will I do serious damage? I've got a little less than 300 hours on the motor and the only thing I noticed was an occasional stutter below about 1200 rpm. The plugs that came out were over .050" I put the 12's in at .028.
Modified by jeffnick at 7:31 AM 8/16/2008