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Go Back   SailNet Community > On Board > Gear & Maintenance > unverisal M12
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Thread: unverisal M12 Reply to Thread
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Topic Review (Newest First)
10-01-2012 08:31 AM
chucklesR
Re: unverisal M12

If the throttle isn't doing anything then that is your first clue.

Fix the throttle. It's stuck wide open - check down stream of it - fuel rack, injector etc.
10-01-2012 08:24 AM
santana30RI
Re: unverisal M12

the motor is on a stand not in the boat
the stop lever will not kill the motor
the throttle is in idel spot and moving it does nothing
i stop the motor by pulling the fuel line off the motor
10-01-2012 01:36 AM
jkrause
Re: unverisal M12

DOH! - That's right- On my Catalina 27 (with a Universal M18) you pull the throttle cutoff (T-shaped) handle. Look for that or a kill button, usually located near the ignition. Then turn off the key. (Earlier post re-edited - Thanks JimsCAL for pointing out this glaring error).
10-01-2012 12:49 AM
JimsCAL
Re: unverisal M12

Quote:
Originally Posted by jkrause View Post
Not wanting to state the obvious, but the M12 is a diesel engine. You don't turn it off by turning the key (or pulling out the fuel line). There should be a decompression handle near the controls (T shaped handle). Pull out the handle to kill the engine- then turn off the key.
Just to clarify, diesels are stopped by cutting off the fuel. Some have a handle, some you pull the throttle back past idle, and some have a solenoid valve in the fuel line that is shut when you turn the key to off. It is not good practice to stop a diesel with the decompression control.
09-30-2012 09:01 PM
jkrause
Re: unverisal M12

Not wanting to state the obvious, but the M12 is a diesel engine. You don't turn it off by turning the key (or pulling out the fuel line). There should be a throttle cutoff handle near the controls (T shaped handle). Pull out the handle to kill the engine- then turn off the key.
09-30-2012 08:20 PM
rugosa
Re: unverisal M12

Quote:
Originally Posted by santana30RI View Post
Motor is new to me. i start the motor and right off the back it rev to max the throtel does nothing and to kiss the motor off i have to pull the fuel line it self off
First check if throttle cable is connected at control and engine.
09-30-2012 07:06 PM
santana30RI
Re: unverisal M12

Motor is new to me. i start the motor and right off the back it rev to max the throtel does nothing and to kill the motor off i have to pull the fuel line it self off
09-30-2012 06:40 PM
KBuckley We need more info. What is the history of the engine, is this problem new, is the engine/boat new to you? Do you mean you need to pull the fuel shutoff knob (normal) or you need to pull off a fuel line?
09-30-2012 05:47 PM
santana30RI
unverisal M12

Good after noon. I have a unversal m12 it starts up but rev high 3400+ and when try to kill the motor it wil lnot stop i have to pull the fuel supply what could it be?

 
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