bought a new tach

[lquested]

ok i have an 88 bayliner w/ 86 force 125 hp out board. i bought a new tach off ebay looks like my speedometer now on the back of the tac it says ( 4-cyl 130 omc and 130 usm only ) what does that mean. will it work on my boat and how the heck do i connect it to my motor?

 

[roscoe]

Re: bought a new tach

Sorry to be the bearer of bad news, but that tach will not work. It is made for an inboard motor.

You need to find a 20 pole tach for your motor.
There are a few still being made.


Teleflex 53743p $62-$114, depending on where you buy it.
Medallion #DJ1STK19720 , $40
Faria #DD2TC9819A , $40
google them

 

[lquested]

Re: bought a new tach

so what does omc and usm stand for?

 

[Bigprairie1]

Re: bought a new tach

I believe OMC stands for Outboard Marine Corporation (now defunct) and USM stands for US Marine (again I believe now defunct).
Roscoe is right the tach you have will only work with 4 cycle inboard/outboard engines and not a 2 cycle outboard.
You will need a 20 pole (outboard) tach.
Check Ebay or Iboats....lots out there.
Good Luck
BP

 

[jerryjerry05]

Re: bought a new tach

Back in those years Bayliner used OMC I/O's USM is U.S. Marine Corporation.
The Bayliner Corp. Jerry

 

[Matthew A.]

Re: bought a new tach

My experience with Faria tachs has not been positive. Of the two units I have dealt with, with my Force, are also the two units that stopped working. Both never gave a stable reading below 1200 rpm and both stopped working with very little hours on them. But hey...for 25 bucks I think I spent on eBay for each of them I can't complain nor can I hold Faria responsible and say they make a shoddy product as I have never purchased one brand new. Just lettin ya know.

 

[cordell]

Re: bought a new tach

http://cgi.ebay.com/ebaymotors/ws/e...STRK:MEWA:IT&viewitem=&item=320189686713&rd=1