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I have a toro super recycler walk behind that will not run at the proper rpm's . If I rig the idler arm , I can ballpark it around 3000. There is no tension on the idler arm spring and it then runs too high. Something else must not be right because the spring does not control the rpm's by bending the bracket the spring is attached to. Any ideas ?

Post all engine and mower model and serial numbers. We can then tell you how to adjust the governor.

Likely the spring for the governor arm is broken or came off under the top cover. We need the number off the engine and/or the mower deck, the deck/chassis number is under the rear chute door if it is like the one I have.

here is more info :
Model 20381
Serial no. 31202288
BCGPS 1591PA
2011

tailgunner said:

here is more info :
Model 20381
Serial no. 31202288
BCGPS 1591PA
2011

Click to expand...

Maybe this will help you:

Doesn't tell me how to reduce the rpm's

Gee... Look at the parts diagrams and figure out what is missing from yours. There are three springs in the various assemblies shown. I suspect one is missing, disconnected or broken. Pull the top cover and inspect the assemblies.

I don't have your mower in front of me. to diagnose it. Sorry no magic.

Gee... Look at the parts diagrams and figure out what is missing from yours. There are three springs in the various assemblies shown. I suspect one is missing, disconnected or broken. Pull the top cover and inspect the assemblies.

I don't have your mower in front of me. to diagnose it. Sorry no magic.

Actually, there are two springs, and there both present. I was just trying to determine if there was a way to adjust the rpm's manually, I guess there isn't...

Lets slow down. So are you saying that the engine is running too fast and cannot be slowed down even by taken all the tension off of the governor spring. If so I would be suspecting a failed governor gear inside of the engine block.

Look at items in group 47, there is a 3rd long narrow/thin spring at the throttle rod. That one is easy to miss. It is usually used to control a surging idle problem by keeping the throttle plate steady.

Instead of selling just the spring, the now sell a "parts kit".

A video that may help was recently by Taryl Fixes All and he showed how these Toro Recycler engines control the throttle and choke automatically along with adjustments. They are a bit of a complex headache

Now that makes sense, since everything topside is normal ! Thanks for the info.