Yesteday everything was great....fast forward to today and my 2000 Yanmar 3GM30F is spewing Black Smoke and I can't get any RPM's over 1000.
It starts up just fine but now Black Smoke and no power.
I check the fuel filters ( replaced last year) and they look fine. Tank is just under 3/4 full.
Fuel flows easy enough, no gunk, water or contaminants you can see.
Impellor is good (new this April). Water is clear from intake to exhaust.
I checked the air filter and while it's not new it' s clean. And I ran it without the filter and still same problem.
But there is no power above 1000 rpm in neutral, forward or reverse.
I'm thinking Injectors ?? It just feels like it's starving for fuel. The engine has 387 hours, all mine, as I purchased the 340 new in 2000.
Any ideas or similar events to others, and where I go from here?
Thanks for the help.
It starts up just fine but now Black Smoke and no power.
I check the fuel filters ( replaced last year) and they look fine. Tank is just under 3/4 full.
Fuel flows easy enough, no gunk, water or contaminants you can see.
Impellor is good (new this April). Water is clear from intake to exhaust.
I checked the air filter and while it's not new it' s clean. And I ran it without the filter and still same problem.
But there is no power above 1000 rpm in neutral, forward or reverse.
I'm thinking Injectors ?? It just feels like it's starving for fuel. The engine has 387 hours, all mine, as I purchased the 340 new in 2000.
Any ideas or similar events to others, and where I go from here?
Thanks for the help.
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