Hi there appreciate the reply, but I have changed the entire Ignition system 3 times Ignition module-hall sensor-battery tray-new plug-new switch, which all comes with a ignition set up for these engines, I thought they had a bad run of the ignitions for the 90-and 91 ,also connected everthing really carefull ground included, I fly rc airplanes -quadcopters-and helicopters and have had a few real john deere 1 1/2 hp hit and miss through the years, the motor is got me thinking about a Recel ignition like I run on my gas airplanes.