tach ? 4 1fast of zook

Stinkies Daddy · 04-05-09, 06:07 PM

at idle my tach works fine and all the way up 1900 r's. after that when the vibration comes on it shuts down. Whats the prob and where do i start looking ?

zooker · 04-05-09, 06:16 PM

loose wire either in the tach or under the hood. depends on moter where but look at the #1 sparkplug wire would be the second place i would look....

zooker

Stinkies Daddy · 04-05-09, 06:26 PM

there is a lil blk box on top of the motor, looking at the motor it to the rt hand side level w/ the flywheel. The top rhs red wire is broken what does this wire do

The motor is a 40 mariner 2 carb made in japan 6E9 L 412818

No loose wires under the dash

zooker · 04-05-09, 06:54 PM

what year mariner??

zooker

Stinkies Daddy · 04-05-09, 06:57 PM

the motor is a 1984

zooker · 04-05-09, 06:58 PM

it's a yamaha built mariner... bet the red wire is the problem..

zooker

Stinkies Daddy · 04-05-09, 07:04 PM

yes , zactly
thios is the motor that 1FAST and i were gonna try to hot rod at the beginning of last summer, we just couldnt find parts, cmon you remember?

1FASTLASER · 04-06-09, 05:57 AM

Look under dash and see if you have the same wire at the tach. A loose or broken wire is goona mean no tach at all...........it either is gona work or not. Does the tach run up to 1900 and then fall off or hold at that rpms?????

Stinkies Daddy · 04-06-09, 07:01 AM

Quote:

Originally Posted by 1FASTLASER

Look under dash and see if you have the same wire at the tach. A loose or broken wire is goona mean no tach at all...........it either is gona work or not. Does the tach run up to 1900 and then fall off or hold at that rpms?????

No! the tach drops back to zero and is deadern a hammer

Gonna make a few phone calls today and find out bout the red wire

boater · 04-06-09, 02:08 PM

is there a simular box and wire on the other side of the motor? V-6s have a box on top of each head by fly wheel if one box is going out you can plug it in to the other side.

Stinkies Daddy · 04-06-09, 02:45 PM

Quote:

Originally Posted by boater

is there a simular box and wire on the other side of the motor? V-6s have a box on top of each head by fly wheel if one box is going out you can plug it in to the other side.

nope, the wires are just held there to keep them from getting caught in the fly wheel

Stinkies Daddy · 04-06-09, 02:52 PM

Turns out the red wire is the wire that is possed to go from the rectifire to the battery, and is for the charging sys. The tach runs off the alternator and it is very rare that the charging systen goes out on these motors. The mechanic i talked to on the phone this morning said he knew for a fact that the alt was good because i was getting a signal to the tach. i was told that the red wire deffanatly needs to be hooked up, and more than likely i have a bad tach. bummer for me, what does a mariner tach cost?

zooker · 04-06-09, 05:13 PM

$30 or so..

zooker

Stinkies Daddy · 04-06-09, 05:45 PM

Quote:

Originally Posted by zooker

$30 or so..

zooker

good to know looking on ebay first

Stinkies Daddy · 04-08-09, 04:04 PM

Quote:

Originally Posted by Stinkies Daddy

good to know looking on ebay first

no tach needed! as y'all know i reconnected the red wire, well i got the boat on the water today and prob solved it WAS the red wire

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04-05-09, 06:16 PM	#2
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	loose wire either in the tach or under the hood. depends on moter where but look at the #1 sparkplug wire would be the second place i would look.... zooker __________________ the godfather.. aml in remission since 7-20-09

04-05-09, 06:26 PM	#3
Stinkies Daddy BassFishin.Com Active Member Join Date: May 2008 Location: Pea Ridge, Arkansas Posts: 118	there is a lil blk box on top of the motor, looking at the motor it to the rt hand side level w/ the flywheel. The top rhs red wire is broken what does this wire do The motor is a 40 mariner 2 carb made in japan 6E9 L 412818 No loose wires under the dash __________________ Stinkies Daddy

04-05-09, 06:54 PM	#4
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	what year mariner?? zooker __________________ the godfather.. aml in remission since 7-20-09

04-05-09, 06:57 PM	#5
Stinkies Daddy BassFishin.Com Active Member Join Date: May 2008 Location: Pea Ridge, Arkansas Posts: 118	the motor is a 1984 __________________ Stinkies Daddy

04-05-09, 06:07 PM	#1
Stinkies Daddy BassFishin.Com Active Member Join Date: May 2008 Location: Pea Ridge, Arkansas Posts: 118	tach ? 4 1fast of zook at idle my tach works fine and all the way up 1900 r's. after that when the vibration comes on it shuts down. Whats the prob and where do i start looking ? __________________ Stinkies Daddy

04-05-09, 06:58 PM	#6
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	it's a yamaha built mariner... bet the red wire is the problem.. zooker __________________ the godfather.. aml in remission since 7-20-09

04-05-09, 07:04 PM	#7
Stinkies Daddy BassFishin.Com Active Member Join Date: May 2008 Location: Pea Ridge, Arkansas Posts: 118	yes , zactly thios is the motor that 1FAST and i were gonna try to hot rod at the beginning of last summer, we just couldnt find parts, cmon you remember? __________________ Stinkies Daddy

04-06-09, 05:57 AM	#8
1FASTLASER BassFishin.Com Super Veteran Join Date: Aug 2005 Location: crossett,arkansas Posts: 2,777	Look under dash and see if you have the same wire at the tach. A loose or broken wire is goona mean no tach at all...........it either is gona work or not. Does the tach run up to 1900 and then fall off or hold at that rpms????? __________________ Laser's rule with Merc's doing the pushing..........KEEP THE WETSIDE DOWN AND THE DRY SIDE UP!!!!!!

04-06-09, 02:08 PM	#10
boater BassFishin.Com Active Member Join Date: May 2006 Location: O'Fallon Missouri Posts: 283	is there a simular box and wire on the other side of the motor? V-6s have a box on top of each head by fly wheel if one box is going out you can plug it in to the other side.

04-06-09, 02:52 PM	#12
Stinkies Daddy BassFishin.Com Active Member Join Date: May 2008 Location: Pea Ridge, Arkansas Posts: 118	Turns out the red wire is the wire that is possed to go from the rectifire to the battery, and is for the charging sys. The tach runs off the alternator and it is very rare that the charging systen goes out on these motors. The mechanic i talked to on the phone this morning said he knew for a fact that the alt was good because i was getting a signal to the tach. i was told that the red wire deffanatly needs to be hooked up, and more than likely i have a bad tach. bummer for me, what does a mariner tach cost? __________________ Stinkies Daddy

04-06-09, 05:13 PM	#13
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	$30 or so.. zooker __________________ the godfather.. aml in remission since 7-20-09

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