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first and foremost, thank you to all the members who have offered so much needed help to others. i joined and i lurked trying to gleam the information i was seeking. now i have a question and i just know some of you folks will have the answer.
ok here's the setup... i have a 04 Husqvarna(yth2148b) riding mower that ended up needing a engine replacement. ordered replacement engine and received a Briggs and Stratton 27hp(44q777)(code 3137g5). well the first and most obvious thing is i am going from a 21hp to a 27hp engine. also, this new engine is set up for a different style choke/throttle configuration(one cable). on my mower i have two separate cables. Another thing is how the linkage for the carburetor is done. and this is what leads me to asking for your help.
i am unable to determine the proper spring setup. and when i have started the engine, it appears to want to run at wide open throttle. if i hold the throttle linkage in the closed position, it will try to idle but then die(which i assume is because i am bypassing the governors action of feathering the butterfly valve opening and closing). i have not let this run for any extended amount of time to avoid grenading the new engine.
i hope this is enough information to help you guys help me. i will add more information as i need to can also add pics if needed.

Sounds to me that you did not receive the correct replacement engine. We will need some pic to help you out. If you can label the control cables somehow that would help. One question I have, is the carb in the same location when you put the new engine in the tractor?

I just looked at the parts manuals for 44Q777-3137-G5 and found that you are correct in finding the throttle and choke combined. This is what the 3137 spec number calls for. You have the wrong repower engine but it can be changed back to the two cable system which I feel is very prefered. I've never liked the full throttle to get choke and starting at full throttle or close to it. You may be able to research the parts that you will need to be able to connect the choke cable to the engine and choke. The link that connects the choke to the throttle will need to be removed in this process. With all governor controlled engines, the throttle cable is connected to the governor which in turn sets the RPM range based on the throttle lever position by controlling the carb throttle plate(s).
Mad Mackie in CT:biggrin::laughing:

hey fellas,i managed a pic or three. i hope these shed a little light on the subject.

can anyone here let me know what slots the springs go in? i have a feeling that may be a contributing factor in my problem

oh and i see that the writing for which cable is which is not that easily seen. so the red arrow marks the choke while the blue on is for the throttle

bumping my post as it still isn't resolved and i am almost at wits end.

Try this www.briggsandstratton.com/support/frequently-asked-questions/Adjusting The Governor/

Pug, i did try the FAQ on Brigss and Strattons site. i adjusted the governor according to their directions and have the ability to now speed up the engine using the throttle cable. my problem lies in not being able to make it idle properly when putting the throttle in the "turtle" position. that is what has led me to feel that i must be having a spring problem.
i know on a carburetor type automobile that i would need a return spring to bring the linkage back to normal rest position. but there is no place for that here. hence my dilemma.

gmixon01 said:

Pug, i did try the FAQ on Brigss and Strattons site. i adjusted the governor according to their directions and have the ability to now speed up the engine using the throttle cable. my problem lies in not being able to make it idle properly when putting the throttle in the "turtle" position. that is what has led me to feel that i must be having a spring problem.
i know on a carburetor type automobile that i would need a return spring to bring the linkage back to normal rest position. but there is no place for that here. hence my dilemma.

Click to expand...

Now we are getting somewhere. To tell you the truth i was getting confused at what problem you were having. :confused2:
Dont think its a spring problem. On the throttle linkage there should be an idle adjustment screw at the side of the carb.
You may need to remove the engine covers to see it.

i also initially thought that maybe the idle screw being out of adjustment, but i chose to ignore that because when i manually hold the throttle against the stop of the screw, it idles just fine. i think that is why i keep leaning to the spring thing. but alas i can't be entirely sure of it being one or the other. so with that said, what do you think?

I just got finished putting a new 44Q777 Briggs 27 horse professional v twin in a dixie chopper zero turn that had a kohler. Wasnt too bad but the wiring was fun too figure all out. Now for your problem!. My mower had both the throttle cable and choke cable. Now the new engine was as you have, combining the two. I also thought I was going too have major problems but instead of overslinging the throttle cable, use the hole in the bottom of the round linkage assembly. If you notice, behind that little hole in the bottom there is a slot cutout for clearance of the hook end of the throttle wire!. This allows the throttle too push/ pull properly and also the choke too work properly for start up. If the cable is adjusted properly, then everything works fine. Before starting the engine, I thought I would have too put an extra spring on the throttle lever as you had too push up on it against the governor spring too idle down the engine. However, with the engine running, it worked fine!.