900 degrees is low. It's possible the mag side was overheated. It's also possible that the EGT sensor on the mag side is on the fritz. Check motor integrity with a compression check. Both cylinders should read within 10% of each other. The Fcats I've check have a compression reading of 138-143. One had a scuffed piston and overheated rings. It showed 90psi. Seemed to run ok.Originally posted by zr8000@Jan 27 2003, 03:17 PM
This is interesting..I have an exhaust temp guage and noticed my mag side will not rise over 900 deg...PTO is around 1200 at hottest and the MAG used to run that hot. I ensured a plug was not starting to foul. Would a scuffed piston act this way? I've been riding it and do not know if I've lost power. It runs fine, and come to think of it, my RPM's are down a little bit from early season riding. Whats the best way to check for the problem you have.