On Mon, Jun 22, 2020 at 2:00 PM Peter Cowenhoven via CnC-List < cnc-list@cnc-list.com> wrote:
> It always starts very nicely. I was running at around 2900 for hours. > Also had a bit of a throttle issue where it would slip down to lower rpm's > and I had to hold it to keep it above 2500. But I couldn't get over 3000. > > After on the dock I started it and it easily went to 3400 or so. At that > point it blew a bunch of black carbom in the water. > That suggests it's either over-propped, dirty bottom, or just has a clogged air filter or other air/fuel issue (injection timing possibly). I'd start with the easy ones first: air filter, timing, bottom clean? Mine had a new injection pump installed when I bought it, and I had to remove the return springs to prevent creeping of the lever, even after adding friction on the cable. This is easy to do on a Bosch rotary pump, but not sure about Yanmars. I see no reason to have a return spring, and too much friction on the cable just causes premature wear. -- Shawn Wright shawngwri...@gmail.com S/V Callisto, 1974 C&C 35 https://www.facebook.com/SVCallisto
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