Briggs and stratton 18 hp twin wiring diagram

Thats awsome! Tis will come in handy alot for me! I want to rewire the craftsman, but keep the key switch. This will save me some guess work!

Like

dangeroustoys56
Veteran Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


1000+ Posts

1000+ Posts!


Age : 52
Join date : 2010-02-10
Posts : 1726
Location : Florida, USA

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
March 22nd 2010, 9:50 pm

I had a different diagram one for the twin wire off the stator - but the wires wouldnt match the ign switch . These are also the clearest/sharpest copies i could find as well ( plus color coded).

Usually, the way it works is L ( and the white wire off the stator) is for lights - G is ground, B is battery and S is start ( starter solenoid) - Y or M is for the saftey circuit/ shut down from the magneto.


Ill usually run the 5 PIN switch as i mentioned- its easier to wire and sometimes ill either run separate switch /power to the lights off the battery , and a separate kill switch as well.

Years ago i somehow found a site that had all these different wiring diagrams for murray tractors- i printed out every one - i have a folder for all the wiring diagrams and parts lists for some of my fav tractors.

Like

Chunk
Established Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


500+ Posts

500+ Posts


Age : 31
Join date : 2010-02-10
Posts : 779
Location : Angus, Scotland

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
March 23rd 2010, 2:30 pm

Yeah, thanks for uploading these dangeroustoys. These are really gonna be useful.

Like

Chunk
Established Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


500+ Posts

500+ Posts


Age : 31
Join date : 2010-02-10
Posts : 779
Location : Angus, Scotland

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
May 18th 2010, 3:16 pm

Most lawn tractors have an chraging circuit under the coil, with two wires coming from them. These can go bad though, best way is to check it with a voltmeter, you should be producing about 12-14v at full rpm, and about 6v or so at idle.

Im planning on running a 30a car alternator to run halogen lights and a winch on my mudder.

Like

dangeroustoys56
Veteran Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


1000+ Posts

1000+ Posts!


Age : 52
Join date : 2010-02-10
Posts : 1726
Location : Florida, USA

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
May 18th 2010, 5:09 pm

Yepper- older motors that use a generator dont have the stator , push mowers w/o electric start dont, ive got a 70 toro with a 5HP electric/ pull start motor that doesnt have a stator - it originally had a lil plug in the side where youd plug it in the wall to charge the battery ( that part is gone now).

After engine manufacturers quit using generators, they went to a one wire stator( just to charge the battery) , now a days its two wires- one charges the battery, the other wire runs the headlights. Some tractors have an external voltage regulator under the dash - those are usually heavy duty garden tractors with multiple power acessories.

Like

Chunk
Established Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


500+ Posts

500+ Posts


Age : 31
Join date : 2010-02-10
Posts : 779
Location : Angus, Scotland

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
May 22nd 2010, 8:30 am

I beleieve the red goes to the +ve of the battery, as this is what charges it, and the black is to run lights etc from. Dont quote me on this, dangeroustoys will have a better idea.

Like

arild365
Frequent Poster
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 27
Join date : 2010-02-11
Posts : 320
Location : Canada, BC

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
May 22nd 2010, 11:06 am

my craftsman doesnnt and never has had a fuse!! does it matter? never had any problem! :S

Like

arild365
Frequent Poster
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 27
Join date : 2010-02-11
Posts : 320
Location : Canada, BC

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
May 22nd 2010, 11:07 am

oh and I HATE WIRING!! for me its just too complicated like i understand it all but i can do the lighting and stuff but man urrghhh i get so frustrated

Like

RompinRedneck
New Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 29
Join date : 2012-01-01
Posts : 41
Location : CT

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 9th 2012, 2:52 pm

Sorry for bringing this thread back from the dead, but I am having a problem directly related to this thread. What do I do with the black wire if my tractor does not have lights?

Like

ferg
New Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Join date : 2011-10-24
Posts : 45
Location : Cheshire, England

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 9th 2012, 3:27 pm

RompinRedneck wrote:Sorry for bringing this thread back from the dead, but I am having a problem directly related to this thread. What do I do with the black wire if my tractor does not have lights?
the wires are usually painted black, use some sand paper or a craft knife to scrape away the paint. The red wire charges the battery, and the orange or white wire is for the head lamps

Like

RompinRedneck
New Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 29
Join date : 2012-01-01
Posts : 41
Location : CT

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 9th 2012, 5:01 pm

What if I have no headlamps? Wouldn't that not complete the circuit?

Like

Jordan
New Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 28
Join date : 2010-10-03
Posts : 170
Location : Ontario Canada

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 9th 2012, 7:04 pm

ok so what if i have the carb with a wire coming out of it? i need to put that engine in another tractor and i cant take the wire harness with it because the safety switches wont work on the new tractor
i have wired a few tractors myself and they always work out for me i just need to know what to do with that wire

Like

RompinRedneck
New Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 29
Join date : 2012-01-01
Posts : 41
Location : CT

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 9th 2012, 7:14 pm

Jordan wrote:ok so what if i have the carb with a wire coming out of it? i need to put that engine in another tractor and i cant take the wire harness with it because the safety switches wont work on the new tractor
i have wired a few tractors myself and they always work out for me i just need to know what to do with that wire
Your carb has a fuel shutoff solenoid. You can bypass it by unscrewing it from the bottom of the float and snipping off the needle that you see. You will need to use a manual shutoff on the fuel line after doing this though. Refer to my video if need be. Good luck!
https://youtu.be/f3j3LjiqhOA

Like

Jordan
New Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 28
Join date : 2010-10-03
Posts : 170
Location : Ontario Canada

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 9th 2012, 8:56 pm

have you tested this out yet? because its actually my brother engine that has it and i dont wanna have to pay to fix it for him if i do something wrong, and he actually runs the manual shut off anyway because if the fuel is left on it floods the engine

Like

Jamus
Established Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


500+ Posts

500+ Posts


Age : 43
Join date : 2010-06-28
Posts : 511
Location : Southern WV

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 9th 2012, 9:24 pm

I have an engine with that electric valve on it in my murray. I ran it to a toggle switch as a sort of secondary cutoff along with the coil wire. I can't remember how I wired it in though.

Like

Jordan
New Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram



Age : 28
Join date : 2010-10-03
Posts : 170
Location : Ontario Canada

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 10th 2012, 7:24 pm

i have a spare carb for the engine anyway so i just cut the plunger off and the engine runs fine, no problems at all so i put the engine on the other tractor and wired it like i normally do and it runs great

Like

csonka39
New Member
Briggs and stratton 18 hp twin wiring diagram




Join date : 2012-01-06
Posts : 1

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
January 13th 2012, 10:53 pm

First of all, Thanks for response. Correction, I have a 16 hp twin briggs pig, ordered a new coil as the one the motor had was burnt at the ground and wires where coming from inside the plastic. So, technically once i install and gap the new coil w/ the ground unattached the motor should give me some spark, correct?, from there I can bypass wiring like the diagram from fearlessfront, and be set to dominate the back 1/2 acre.

Like

richie thomas
Veteran Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


1000+ Posts

1000+ Posts!

2014 Build-Off Entrant

2014 Build-Off Entrant


Age : 27
Join date : 2011-08-04
Posts : 1434
Location : east dublin georgia

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
June 9th 2012, 2:10 am

anyone have a good diagram for wiring an opposed twin?

Like

Jamus
Established Member
Briggs and stratton 18 hp twin wiring diagram

Briggs and stratton 18 hp twin wiring diagram


500+ Posts

500+ Posts


Age : 43
Join date : 2010-06-28
Posts : 511
Location : Southern WV

Briggs and stratton 18 hp twin wiring diagram
Briggs and stratton 18 hp twin wiring diagram
Subject: Re: Briggs Engine Wiring Diagram   
Briggs and stratton 18 hp twin wiring diagram
June 9th 2012, 8:00 am

I've had good luck wiring up a couple of my mowers, including a twin, using the diagram posted by fearlessfront. It's in the wiring topic stickied to the top.

What is the red wire on a Briggs & Stratton engine?

RED WIRE - This is your DC cable, it should be connected directly to positive power on your battery. This wire charges your battery. BLACK WIRE - This is the engine kill switch, It needs to run to an ON/OFF switch and then run to earth. DO NOT CONNECT THIS WIRE TO POSITIVE POWER!

Why won't My Briggs and Stratton lawn mower keep running?

Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn't work, you might need a new fuel filter.

How do you wire an ignition on a riding lawn mower?

How to wire a lawnmower ignition switch, step by step.
Step 1: Obtain a circuit diagram..
Step 2: Locate all components that need wiring..
Step 3: Connect the switch to ground..
Step 4: Connect the switch to the Solenoid..
Step 5: Wire the magneto to the switch..
Step 6: Provide voltage by connecting the battery..