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cub cadet riding mower surging

#1

R

rvr350

I have a Enduro cub cadet riding mower, and 2 days ago, i had to punched the PTO blade off to avoid an obstruction suddenly, and after that incident, the engine would surge when the PTO isn't engaged. When PTO is engaged, it runs smoothly. I cleaned the carb and it seems good shape, pulled the plug, and it seems fine as well. What else could i look for? Thank you.


#2

R

Rickcin

My CC is also surging and I’m guessing you also have a Kohler twin cylinder engine?


#3

Scrubcadet10

Scrubcadet10

rvr350 said:
I have a Enduro cub cadet riding mower, and 2 days ago, i had to punched the PTO blade off to avoid an obstruction suddenly, and after that incident, the engine would surge when the PTO isn't engaged. When PTO is engaged, it runs smoothly. I cleaned the carb and it seems good shape, pulled the plug, and it seems fine as well. What else could i look for? Thank you.
Click to expand...
Post up the engine model #'s/
1620093498545.png
1620860390122.png


#4

R

rvr350

Kohler KT735.


#5

R

Rickcin

Now we have two different threads going here regarding a surging Koehler engine on a Cab Cadet!


#6

Scrubcadet10

Scrubcadet10

rvr350 said:
Kohler KT735.
Click to expand...
What's the Spec number?

Seems to me most likely there is blockage in the idle circuit of the carburetor making it run lean and surge. And when you engage the blades, it runs on the main jet.


#7

R

rvr350

Scrubcadet10 said:
What's the Spec number?

Seems to me most likely there is blockage in the idle circuit of the carburetor making it run lean and surge. And when you engage the blades, it runs on the main jet.
Click to expand...
Kt735-3076 what is the idle circuit looks like? Is it the wires coming out under the fuel bowl?


#8

Scrubcadet10

Scrubcadet10

The idle circuit is the path the fuel takes through the carburetor when the engine is idling or at lower RPMs.
carb in the video is for honda. though.

Sometimes it takes a few good cleanings or even a 24 hour soak in parts cleaner to get them CLEAN.


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