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tiny tach.

Posted: Wed Jan 28, 2015 11:15 am
by killerkernrich
I am planning on putting on a tiny tach on my 60 hp 4 stroke merc motor.
find them on ebay from $10.00 to in the $40.00 plus range any suggestions??

Re: tiny tach.

Posted: Wed Jan 28, 2015 5:49 pm
by Bryden24shp
I sure would! Its nice to know where your RPM's are for proper propping, which effects fuel economy and engine life. An engine struggling to make proper RPM's won't last 1/2 as long as one that does. Another way to tell the heath of your outboard. Pull the sparkplugs and read them! Tan is good. White, dark brown and black-----bad! This goes for 2 and 4 strokes.

Re: tiny tach.

Posted: Wed Jan 28, 2015 6:28 pm
by RcgTexas
I'd say get as good as you can afford. It's nice to see what's going on, you can even get an idea when its prop repair time. something you may not be able to see can show up on the tach, and speed. As was already stated its a good way to keep up with your engine performance.

Re: tiny tach.

Posted: Wed Jan 28, 2015 7:02 pm
by PlaynDoc
when i've been on long boat trips, i use the tach as a 'fuel control' kinda thing... to optimize fuel use... speedometer is good, but if you're going a long way, against the wind, and need to save gas... i keep the RPM's on a particular number... like 3000, and cruise along... that usually puts me about 13-15mph...

Re: tiny tach.

Posted: Wed Jan 28, 2015 10:41 pm
by killerkernrich
I was thinking of it as a tool to tell me when to change the oil & filter, I won't be able to watch it while running as it will be under the engine cover.

Re: tiny tach.

Posted: Wed Jan 28, 2015 11:03 pm
by MH Hawker
I did that exact same thing the same reason, for 2 seasons till i rebuilt my console and added a tach and hour meter. It will work just fine.

Re: tiny tach.

Posted: Thu Jan 29, 2015 5:28 am
by PlaynDoc
killerkernrich wrote:I was thinking of it as a tool to tell me when to change the oil & filter, I won't be able to watch it while running as it will be under the engine cover.
you must mean a hour meter....

Re: tiny tach.

Posted: Thu Jan 29, 2015 6:50 am
by Bryden24shp
PlaynDoc wrote:
killerkernrich wrote:I was thinking of it as a tool to tell me when to change the oil & filter, I won't be able to watch it while running as it will be under the engine cover.
you must mean a hour meter....
That's the drift I'm catching, also!

Re: tiny tach.

Posted: Thu Jan 29, 2015 9:19 am
by killerkernrich
The tiny tach I am looking at does both RPM & hrs I have a dash RPM
the tiny tach has 2 wires you wrap one around a sparkplug wire the other is a ground.
they are small you can use them on your lawn mower.... any engine