Re: EMM over heating on a 200 Evinrude ficht (Same Old Problem)
Let me clear up a couple of points on the FICHT engines that are in discussion.
The pinned heads came out in mid year '99 for the '98 and '99 60? 150-175 cylinder heads. These were part of the update kit and redesign to make the engines run better and not soot up the internals which caused the piston failures and plug fouling. The factory sent teams of mechanics throughout the country to upgrade both customer engines and dealer engines. Later in the year, the kits were available to dealers to upgrade the motors that did not get the factory reps to do it.
The FICHT Ram came out with the 2000 models with 40 volt injectors and an EMM instead of a separate ECU and voltage regulator. It also was the first to alternate cylinders when changing from the lean-burn to the regular combustion mode at around 1500 rpm or so to make the engine run smoother during the transition.
The FICHT does not and did not cut out different cylinders at idle, it runs on all 6 continuously. Some models of the Yamaha HPDI engine do that as did some of the the Yamaha OX66 engines.
Let me clear up a couple of points on the FICHT engines that are in discussion.
The pinned heads came out in mid year '99 for the '98 and '99 60? 150-175 cylinder heads. These were part of the update kit and redesign to make the engines run better and not soot up the internals which caused the piston failures and plug fouling. The factory sent teams of mechanics throughout the country to upgrade both customer engines and dealer engines. Later in the year, the kits were available to dealers to upgrade the motors that did not get the factory reps to do it.
The FICHT Ram came out with the 2000 models with 40 volt injectors and an EMM instead of a separate ECU and voltage regulator. It also was the first to alternate cylinders when changing from the lean-burn to the regular combustion mode at around 1500 rpm or so to make the engine run smoother during the transition.
The FICHT does not and did not cut out different cylinders at idle, it runs on all 6 continuously. Some models of the Yamaha HPDI engine do that as did some of the the Yamaha OX66 engines.