B&S 10/12HP throttle repair

jaylees150

Forum Newbie
Joined
Jan 20, 2025
Threads
2
Messages
4
They are both B&S and I think both 12HP but they have different parts.

The engine is this thread is shown in the first post with the red cover. The numbers I posted in the previous reply are on the front of the red cover but are incredibly difficult to make out even up close.

I have saved the manual, it's much appreciated and will definitely be useful.
 

Rivets

Lawn Royalty
Joined
Mar 11, 2012
Threads
60
Messages
15,398
Take one of your better half’s scrubbies and carefully rub over the engine numbers. Most times this will make the numbers pop out.
 

Rivets

Lawn Royalty
Joined
Mar 11, 2012
Threads
60
Messages
15,398
Jonny, you say you are new to help forums so I’ve got a couple of suggestions which will help you out. You’ve made some mistakes (posting two threads about different engines, but not clearly identifying what is going on) so I suggest you start over, and follow these steps in both threads.
1. Do not mix any info between threads, each is a separate problem.
2. Post all engine numbers for the engine in that thread.
3. Post your questions as clear as possible, only for that engine.
4. With this info we should be able to help you out.
5. Make sure that you only ask about 1 engine in each post.
Hopefully you will start over using these suggestions, or it is highly unlikely we can help you out.
 

kbowley

Well-Known Member
Joined
Jun 8, 2011
Threads
2
Messages
144
The missing number after the first digit is either a 5 or 8. If it is a 10hp, it will be a 5, and 12hp an 8. You need to get the full 4-digit spec number, as "015" doesn't match anything. It should be four digits like this: 0167. Use a wire brush to get it as clean as possible, and you should be able to read it from one angle or another and either a flashlight or not. Need that number. You have the incorrect carburetor on there; it looks like an Amazon 20-dollar special. Do you have the original? You are missing the linkage rods going from the throttle control to the carb as well as the choke linkage. Do NOT allow that engine to run wide open; it will destroy the engine quickly. Also, can you provide the full model number and serial of the tractor? Since the LT125 was made from roughly 1990-2010, if you provide the full model, it will be easier to narrow down the correct engine. Your governor spring is hooked incorrectly, as is your throttle rod linkage; it belongs in the top hole of the governor shaft.
 
Last edited:
Top