After letting the cart sit overnight, it works fine to play a round of golf. When I park it for approx. 3 hours after golf then try to use it the problem will surface. I suspect one of the EFI sensors is producing an incorrect reading which is causing the ECU to do a cold startup and dump too much gas into the intake for a warm engine. I have the service manual for a 2013 but not the 2018. On the 2013 I see four sensors -- intake pressure sensor, engine temperature sensor, air temperature sensor, crankshaft position sensor. I suspect one of the two temperature sensors maybe at fault. Problem is I can’t find any reference to engine temperature sensor on the Yamaha parts page for 2018. I’m hoping someone that may have specific knowledge of this problem might be able to help.
|