F25 rpm gauge ?
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- gordd
- Sporadic User
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- Joined: Sun Sep 02, 2012 9:24 am
- Location: Mississauga ontario
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F25 rpm gauge ?
Hello does anyone know where the F25 318 rpm gauge connects to on engine ? on coil or somewhere else .. perhaps someone can post a pic . Thank you for any input
- prowlersfish
- 2025 Gold Support
- Posts: 12724
- Joined: Sat Nov 05, 2005 6:56 pm
- Location: Lower Chesapeake Bay ,Va
Re: F25 rpm gauge ?
The -side of the coil
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat

- The Dog House
- Active User
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- Joined: Mon Jan 09, 2012 6:51 am
- Location: Bordentown, NJ
Re: F25 rpm gauge ?
The tachometer (rpm gauge) attaches to the coil. The red wire in the picture is the wire from the tachometer.gordd wrote:Hello does anyone know where the F25 318 rpm gauge connects to on engine ? on coil or somewhere else .. perhaps someone can post a pic . Thank you for any input

1993 Sea Ray 200 Overnighter OB with 1993 Mercury 150 hp Outboard
1979 Starcraft 14' Rowboat with 2011 Mercury 9.9 hp Outboard
Former boat: 1971 Trojan F26
1979 Starcraft 14' Rowboat with 2011 Mercury 9.9 hp Outboard
Former boat: 1971 Trojan F26
- gordd
- Sporadic User
- Posts: 121
- Joined: Sun Sep 02, 2012 9:24 am
- Location: Mississauga ontario
- Contact:
Re: F25 rpm gauge ?
TY prowlersfish and Dog House ... Hey Dog did you go straight from tach to coil or from harnesss ?
- The Dog House
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- Joined: Mon Jan 09, 2012 6:51 am
- Location: Bordentown, NJ
Re: F25 rpm gauge ?
The boat was like this when I bought it. I didn't actually run the wire so I don't know if it's direct or from the harness. There's no reason why you couldn't run the wire directly from the tachometer to the coil if that's easier.gordd wrote:TY prowlersfish and Dog House ... Hey Dog did you go straight from tach to coil or from harnesss ?
1993 Sea Ray 200 Overnighter OB with 1993 Mercury 150 hp Outboard
1979 Starcraft 14' Rowboat with 2011 Mercury 9.9 hp Outboard
Former boat: 1971 Trojan F26
1979 Starcraft 14' Rowboat with 2011 Mercury 9.9 hp Outboard
Former boat: 1971 Trojan F26