Husky 350

[Clint Eatswood]

Definitely no air leak. Carb is tuned, both low and high. I decided to pull the jug and measure ring end gap. I'm coming up with 0.021". I'm no expert but this seems to be really high. From what I read on here I should be in the neighborhood of 0.006-0.010". Can somebody provide some insight here? If that's the case, would certainly explain the low compression and poor power.

 

[old guy]

As you say should be .006 - .010, .021 is too much. how are you measuring? are you pushing the ring up into the cyl. with the piston to keep it square?

 

[Clint Eatswood]

Yes, used the piston to push the ring into the cylinder and measured 3 locations between the roof of the exhaust port and 1/4" from squish band. All 3 measured 0.021".

 

[farminkarman]

Definitely no air leak. Carb is tuned, both low and high. I decided to pull the jug and measure ring end gap. I'm coming up with 0.021". I'm no expert but this seems to be really high. From what I read on here I should be in the neighborhood of 0.006-0.010". Can somebody provide some insight here? If that's the case, would certainly explain the low compression and poor power.

You need a new ring

 

[Clint Eatswood]

You need a new ring

Yep, have a 3 pack ordered. Surely 1 of 3 will have appropriate ring gap.

Appreciate the feedback.

 

[Clint Eatswood]

Ok, new ring installed with 0.009" end gap. Compression seems suitable. Pops on 2nd or 3rd pull, fires one or two pulls afterward. Low speed screw set and it idles and revs fine, but its running lean up top. I've opened up the high speed screw and can't get it to 4 stoke at all. It also bogs in the cut if leaned into at all. I'm assuming this is a fuel delivery issue and not an air leak, correct?

 

[Clint Eatswood]

Rebuilt the carburetor and all seems well. Diaphragms were pretty stiff.