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  1. J

    Yanmar 2GM20F hard to start.

    Yep, the wire harness started to fail months ago and I ran a new larger wire. I swapped the injectors and it runs the same. If I start it up and decompress the front cylinder the engine continues to run. If I start it up and decompress the back cylinder the engine immediately dies. It was the...
  2. J

    Yanmar 2GM20F hard to start.

    Exhaust is above water line.
  3. J

    Yanmar 2GM20F hard to start.

    I just ordered a new injector someone was selling for $50 on EBay and I might just have one of the old ones rebuilt if it’s $100. I’ve checked the oil and all still looks good. Just waiting on the compression adapter.
  4. J

    Yanmar 2GM20F hard to start.

    I re set the valve gaps and re torqued the head bolts and it does start easier. I forgot to mention that I’m getting a layer of black soot on the water maybe every other start up. I order a compression adapter for the fuel injector hole so I guess I’ll see what the compression is and go from there.
  5. J

    Yanmar 2GM20F hard to start.

    I have a Yanmar 2GM20F. About 4-5 months ago the engine became hard to start. Have to give it full throttle for a good 30 seconds to get it to start. But once started it runs fine. So if I flip the decompression lever on the front cylinder it starts up and I can flip it back over and the...