pre detonating problem
on the last few flights I noticed a pre detonating condition on my OS 1.6 in a CAP 232.
10% Powermaster fuel w/ additional 3 oz. of KLOTZ per Gal., OS # 8 plug, Zinger 18x6 Pro, Brisson Pitts Muffler, Altitude 1200'. ( Note: no pump or other fuel delivery device).
Also noticed lots of oil on Bottom of fuse, whats the cure?