5 HP CRAFTSMAN edger engine dies on full throttle

[Craftsman Garage]

my 5 HP CRAFTSMAN edger engine dies on full throttle for some reason, this has been a problem ever since I got the engine 1 year ago. maybe it has something to do with the leak in the muffler? I have tried adjusting it and it still has the same problem, but ONLY on full throttle. I have no idea what may be causing this issue. Thanks for any help provided.

Lanerdude9

 

[Rivets]

Give us all number off the engine so we have an idea of what you are talking about. We hate guessing.

 

[Craftsman Garage]

ok, haha

 

[Craftsman Garage]

i couldnt seem to find one but this is the exact same engine:

 

[Craftsman Garage]

ok, so after 30 minutes of long, hard searching the engine, I finally found the dust and dirt-caked engine serial code and model number for the edger! engine serial code: 100202 0015-01 6811127 craftsman edger model number: 536-83610

 

[sgkent]

change the air filter maybe

 

[Rivets]

On that carb there should be a fuel mixture screw on the right side of the carb, under the air filter. Try adjusting this screw 1/4 turn out, counterclockwise, and see if it makes a difference. Sounds like it’s not getting enough fuel at high speed.

 

[StarTech]

Being a 1968 model it very possible that the fuel pickups are clogging with rust from the tank. Also the valve train is probably heavily worn.

 

[Rivets]

I agree, but this is the first thing I’ll bet each of us would try. As we all know with an engine 53 years old not one of us is going to spend a lot of time tearing into the engine. At least I wouldn’t, even though I love bringing back the old mules. Would only tear into it if it were my unit and I didn’t worry about the labor costs. Good winter project for me.

 

[sgkent]

I've seen dirty or wet air filters cause that too.