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Old 04-23-2007
bullrunner bullrunner is offline
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Trouble Starting my Yanmar 1GM

I have a 1983 27' Hunter with a Yanmar 1GM. I'm having trouble starting. It will take 5-10 minutes before the engine starts but once starting it does/will run. I've taken a fuel sample from the primary filter and the fuel is pretty dark and in bad shape. I've treated the tank with Startron Fuel tank cleaner and then tried using an electronic fuel transfer pump to bring fuel from the tank through my primary filter and back into my fuel tank to try and clean the fuel but to no avail. I've tried hooking the fuel line directly into a standby diesel can with clean fuel and still have trouble starting. I've also noticed that when attempting to start I sometimes get white smoke coming out of the air intake. I've been told this is most likely a valve problem. Can anyone help me figure out where to even begin? Thanks

Ted
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