Chainsaws

[WARRIORWELDING]

I thought about putting a zip tie on the pick up. Not following the fuel puddles.

Over rich condition. Unburnt fuel puddles in the case. It gets pulled into the combustion chamber on the Two Stroke Cycle.
@ponykilr wouldn't that usually also accompany a little excessive smoke and a rich plug? With mixes being way less smokey by nature tuning one using the color of smoke as a guide is dead art.

@ghost flooded cases and even cases that leak are usually over looked by the average joe. I didn't know much about symptoms of either til a saw of mine seized with low hours. A leaking case will allow air to be pulled in, usually never pushed out. Air then leans the saw. You either chase what you think is a carb adjustment or its subtle enough it runs like a scalded cat until it doesn't.

 

[ponykilr]

Over rich condition. Unburnt fuel puddles in the case. It gets pulled into the combustion chamber on the Two Stroke Cycle.
@ponykilr wouldn't that usually also accompany a little excessive smoke and a rich plug? With mixes being way less smokey by nature tuning one using the color of smoke as a guide is dead art.

@ghost flooded cases and even cases that leak are usually over looked by the average joe. I didn't know much about symptoms of either til a saw of mine seized with low hours. A leaking case will allow air to be pulled in, usually never pushed out. Air then leans the saw. You either chase what you think is a carb adjustment or its subtle enough it runs like a scalded cat until it doesn't.

You covered it pretty much brother.

A saw that is set slightly rich to cover an unknown air leak will puddle fuel in the case but idle ok…..maybe up and down a bit. Tilt it on it’s side to notch a tree and it’ll suck in some fuel and sputter or die. The air leak itself depending where it is can also cause a stall when tilted over as it goes lean (or rich if the saw is set to cover a leak that goes away when tilted)

Can be crank seals worn, air horn or associated stuff between carb and cylinder, impulse line ect.

Another possibility is some Husqvarna saws have a carb not directly vented on the diaphragm cover but they use a port in the intake. These are notorious for weird carb/running problems that come and go (359s are good examples). The fix is to drill a 1/16” hole in the diaphragm cover like God intended.

 

[ponykilr]

@ponykilr wouldn't that usually also accompany a little excessive smoke and a rich plug? With mixes being way less smokey by nature tuning one using the color of smoke as a guide is dead art.

Tuning….

The difference between a saw that is as from the Lord or one you offer to Satan

I never tune for smoke (sometimes smell at idle if it is a very small saw) but adjust low for cleanest highest idle and high til it screams at WOT and then back in til it begins to burble at WOT. Go back and forth maybe 3 times between screws to fine tune as each affects H&L a little bit.

Big saws like 70cc up sometimes need a minor tweak on the H screw in the cut to get it to really sling chips.

Mtronic saws are magic and I LOVE them because they are never out of tune, even adjusting themselves in the cut from the top of a log to the fat part.

 

[ponykilr]

That’s what I’m thinking. I pulled the original off and it was cracked where the filter connects. Probably my issue all along. I ordered Stihl pick up today. Only $20 gamble.

Didn’t see this part. Amazon fuel pickups are typically garbage.

 

[ghost]

Didn’t see this part. Amazon fuel pickups are typically garbage.

I've got a Stihl one on the way. This is on my 460 Magnum. I dropped off the 361 yesterday to see what the dealer says it needs. It was $200 off MP so not scared to invest some in it to get it running better.