pulse

rob m · 20-02-2010, 08:14 PM

what is engine pulse i have never hurd of it till today. if a 2 stroke is 6 pulse what is a car. i ask because i have a rev counter off a car its wired up to the grey wire but when i rev it just turns off the rev counter n a warning light comes on it. there is 3 settings on the back 6 7 8 is that for pulse or is it 6000rpm 7000rpm 8000rpm

1up · 21-02-2010, 09:36 AM

i always thought the switch on the back was to do with the amount of cyclinders

Jay Smith · 21-02-2010, 01:09 PM

Most all Mercury V-6 engines the pulse selection on the rear of the tac should be placed on # 4 to yield accurate values...

Jay

rob m · 21-02-2010, 08:50 PM

Quote:

Originally Posted by 1up

i always thought the switch on the back was to do with the amount of cyclinders

whatever its for i tryed all 3 settings and its still not working i am finding it hard to set the whole rig up

Techteam · 21-02-2010, 09:44 PM

Sorry to say but it won't work, if from a car it probably uses a completely different signal. If you are really struggling send me a pm with your number and I'll see if I can find some time to help.

Jay Smith · 22-02-2010, 03:24 AM

Car tacs won't work on an outboard engines PERIOD... When I was racing I was factory sponsered by Auto Meter and I choose an automotive tac from their line of recall units and it had to be modified from the factory BEFORE it was installed on my V-6 outboard...

Jay

jordaniel · 22-02-2010, 07:51 AM

Hi Guys
I may be talking out my rear but cars are four stroke and your outboard is a two stroke would that not make a difference even if you get it working

Ray

Jon Fuller · 22-02-2010, 03:52 PM

The OB's don't usually take tacho send signal from the ignition pulses in the normal 4, 6, or 8 cylinder automotive, or sterndrive way, instead, they read the AC cycle from the 12 pole alternator windings.

Dunno about the opti type motors ect with automotive style alternators.

Jay Smith · 23-02-2010, 01:10 PM

Jon is 100% correct !

Jay

bluematt1 · 23-02-2010, 09:28 PM

Quote:

Originally Posted by Jay Smith

Jon is 100% correct !

Jay

my 6 cyl is set to 12

Jay Smith · 24-02-2010, 12:24 AM

Mercury manual sez V-6 260-245-300 HP set at 4 ....Those as well as 280 and Pro Max are the only V-6 I'm interested in though...

Jay

Jon Fuller · 24-02-2010, 08:09 AM

Quote:

Originally Posted by bluematt1

my 6 cyl is set to 12

Yes, 12, as in, 12 pole alternator.