Yanmar 3JH4E Cold Weather Starting | Catalina 380 International Association

The Yanmar 3JH4E does not have glow plugs, but Yanmar instead offers an optional intake Air Heater to help with cold weather starting. The engine on our 387 does not have this optional heater, but I believe the blue "glow plug" wire from the start switch is run all the way through/to the engine wiring harness (the 3-conductor plug on…

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