Briggs Stratton XT 1750 upgrade from Kohler Courage 15 SV470

[rakellermann]

Hello,
First time posting, hoping to get answer. I have a Toro SS 3200, Kohler Courage 15 SV 470 model finally died out. Purchased a Briggs N Stratton XT 1750. Issue is the engine plug. BS 1750 has three, single red and dual connector with black and gray, I know the Red for power and the black is for ground and gray is for carb solenoid. The old Kohler has a 6 prong plug, but only 4 are used, red/white/violet and orange jump wire from violet.
Is there an adapter I need to purchase or can someone tell me which wires I am to splice into the new engine?
RK

 

[bertsmobile1]

If you have the old engine there in front of you take the blower housing of and check where the wires go the connect accordingly
The only trick is the violet wire which is the trigger for the starter solenoid
You B & S engine requires an external starting solenoid so you will need one of those plus another red power cable to run from the solenoid to the starter motor.
The original battery cable , plus the small red wire will need to be connected to the new solenoid
The red wire ON THE STARTER is to power feed to the mower
The red wire on the engine is the power return to charge the battery
t can also go to the live terminal on the starter solenoid
These things are never as simple as they look

 

[ILENGINE]

On the old Kohler the red is the fuel solenoid. white is the kill wire and the purple/violet is the charge wire coming from the voltage regulator. On the briggs the red would be the charge wire for the battery, black is kill, and grey is fuel solenoid.

And to @bertsmobile1 The SV or single cylinder courage doesn't have the solenoid on the starter so that part of the Kohler engine wiring containing the solenoid actuator wire isn't there. And to @rakellermann you will need to look at the 6 pin terminal connector on the mower side of the connection to determine what goes to were and how it is wired. How many wires does the mower 6 pin connector have. It has 3 then things are fairly simple.

 

[StarTech]

I see Briggs is getting stupid again. The use of model series names can be confusing to us that goes by actual model numbers. All they was to use Layman's term moeld names just to make out they created a new series of engines.

Here I find no XT 1750 but do find a Briggs reference to a EX 1750 engine which be the 31R9 model series that we are familiar with. And here something that we may not know about it. They market the EX1750 as 10.5 -19 gross hp but it is rated at 17.5 gross hp.

 

[rakellermann]

Hello,
First time posting, hoping to get answer. I have a Toro SS 3200, Kohler Courage 15 SV 470 model finally died out. Purchased a Briggs N Stratton XT 1750. Issue is the engine plug. BS 1750 has three, single red and dual connector with black and gray, I know the Red for power and the black is for ground and gray is for carb solenoid. The old Kohler has a 6 prong plug, but only 4 are used, red/white/violet and orange jump wire from violet.
Is there an adapter I need to purchase or can someone tell me which wires I am to splice into the new engine?
RK

Thank you for the reply, will try out suggestions and correct never as easy as it seems.

 

[StarTech]

There is really no substitute for experience. Even us professionals have to do our homework when changing engines.

Here I spent time and money learning how to professionally wire up these engines. Otherwords I do little splicing but instead work the connectors using now pins and sockets.

One my pet peeves is the lack of info from these OEMs as the wiring color coding they use which can change from time to time. What we depend on is each other experience when it comes to new re-power projects. Sometimes we have to pull the engine's shrouds and hand trace the current wires to what they are attached to.

It would so much simpler if each OEM develop and publish a standardize wiring system. I recently had to re-wire a JD mower due mice damage. Even their service manual wiring color codes didn't match what was in front. Luckily they also use a number system which help to get things properly wired.

At least the OP case here we are dealing with few wires and not over 100 wires of the same color with only numbers printed on them.

 

[rakellermann]

On the old Kohler the red is the fuel solenoid. white is the kill wire and the purple/violet is the charge wire coming from the voltage regulator. On the briggs the red would be the charge wire for the battery, black is kill, and grey is fuel solenoid.

And to @bertsmobile1 The SV or single cylinder courage doesn't have the solenoid on the starter so that part of the Kohler engine wiring containing the solenoid actuator wire isn't there. And to @rakellermann you will need to look at the 6 pin terminal connector on the mower side of the connection to determine what goes to were and how it is wired. How many wires does the mower 6 pin connector have. It has 3 then things are fairly simple.

ON the mower side, there are actually 4 wires, one looks pink, (thinking it was red, based on engine side of plug), white, and three purple wires, yet two are in one prong. I am thinking the three would be tied together, as on engine side, there is a jumper for the purple wires.

So, thinking if I take the engine plug of old into mower plug, cut the wires and connect the lone red wire from new to the purple of old, black wire from new to the white of old, and grey from new to the red of old wire. Am I correct?

 

[rakellermann]

I see Briggs is getting stupid again. The use of model series names can be confusing to us that goes by actual model numbers. All they was to use Layman's term moeld names just to make out they created a new series of engines.

Here I find no XT 1750 but do find a Briggs reference to a EX 1750 engine which be the 31R9 model series that we are familiar with. And here something that we may not know about it. They market the EX1750 as 10.5 -19 gross hp but it is rated at 17.5 gross hp.

Correct, I thought odd when I ordered it was listed as a 31R907, yet when received seen the label XT 1750.

 

[bertsmobile1]

ON the mower side, there are actually 4 wires, one looks pink, (thinking it was red, based on engine side of plug), white, and three purple wires, yet two are in one prong. I am thinking the three would be tied together, as on engine side, there is a jumper for the purple wires.

So, thinking if I take the engine plug of old into mower plug, cut the wires and connect the lone red wire from new to the purple of old, black wire from new to the white of old, and grey from new to the red of old wire. Am I correct?

This is why I said to remove both blower housings and trace the wires to see where they connect to.
This is what I do because I never trust wire colours as some times they are wrong and some times ( actually more times ) my memory is wrong
Ie violet for charging wire & blue for starting solenoid

 

[Scrubcadet10]

There is really no substitute for experience. Even us professionals have to do our homework when changing engines.

Here I spent time and money learning how to professionally wire up these engines. Otherwords I do little splicing but instead work the connectors using now pins and sockets.

One my pet peeves is the lack of info from these OEMs as the wiring color coding they use which can change from time to time. What we depend on is each other experience when it comes to new re-power projects. Sometimes we have to pull the engine's shrouds and hand trace the current wires to what they are attached to.

It would so much simpler if each OEM develop and publish a standardize wiring system. I recently had to re-wire a JD mower due mice damage. Even their service manual wiring color codes didn't match what was in front. Luckily they also use a number system which help to get things properly wired.

At least the OP case here we are dealing with few wires and not over 100 wires of the same color with only numbers printed on them.

I worked on a Lincoln welder/generator last year, mice chewed up a ton of wires... I just about had a heart attack when i saw all of the wires were white....
Only with some more investigating did i see the wires were numbered. that felt like a heavy weight lifted off of me.