Stihl 039 hard pull after replacing low and high carb screws

[SteveSr]

how could they have bent those screws ?

Anything is possible with a ham fist and a big enough (wrong) screwdriver. Don't you know someone who could break an anvil? I can think of at least one.

 

[Cycledude]

Anything is possible with a ham fist and a big enough (wrong) screwdriver. Don't you know someone who could break an anvil? I can think of at least one.

Reminds me of an old friend that passed away a few years ago, I always said you could give him a couple feet of railroad track and in a couple weeks he would bring it back bent like a horseshoe and claim he didn’t do anything it just bent but he wanted me to fix it for free.

 

[stihl86]

how could they have bent those screws ?

since they are recessed into the body of the carb. This is one of those threads that don't add up.

 

[SteveSr]

since they are recessed into the body of the carb. This is one of those threads that don't add up.

The OP's carb does NOT have limiter caps so the screws are exposed...

 

[Vintage Engine Repairs]

My 020 has a bent carb screw. How someone did it I don’t know, but they did.

 

[smoking]

Quick thought. Is it strange that it is still hard to pull with the carburetor completely removed? That one stumps me.

 

[stihl86]

Quick thought. Is it strange that it is still hard to pull with the carburetor completely removed? That one stumps me.

Just for reference, what's the number etched on the body of the carb?

 

[SteveSr]

Quick thought. Is it strange that it is still hard to pull with the carburetor completely removed? That one stumps me.

Can you define "hard to pull" or post a video? Is there gas coming out of the muffler when it does this?

Since this is the largest displacement saw in its footprint it is going to be harder to pull than an 029/290.

Another thing to check is that the recoil pulley is not cracked and that the correct diameter OEM rope is used so that the rope isn't binding in the pulley.

 

[smokey7]

Gut feeling on this is it's flooded or the crank bearings are shot. Flooded is easier to diag then the bearings so start there first. Flip it over and pull it over a few times with ignition off watching for fuel to come out.

 

[smoking]

Folks, in conclusion i gave up and brought to a shop. They said that everything was fine it just needed a little adjustment and fresh gas. I asked for specifics, and they said that the mechanic probably just adjusted the carb screws and put in fresh gas.

To my embarrasment, I'm not sure how I wasn't able to get it right myself, but there you have it. She runs like a champ. I ran her dry and stored her.

 

[irhunter]

Folks, in conclusion i gave up and brought to a shop. They said that everything was fine it just needed a little adjustment and fresh gas. I asked for specifics, and they said that the mechanic probably just adjusted the carb screws and put in fresh gas.

To my embarrasment, I'm not sure how I wasn't able to get it right myself, but there you have it. She runs like a champ. I ran her dry and stored her.

Say what?

You took it in...and, it was unusually hard to pull over. Right?
And, the mechanic behind the curtain did some minor thing...and, it pulls over easier. Wow.

Roy

 

[Vintage Engine Repairs]

A case of you need to eat some concrete and toughen up princess!! Yank on that rope, don’t tickle the darn thing!

(This is all written in a jovial way ) glad it’s all ok!!

 

[KASH]

Glad to hear it was minor and you can sleep well knowing your saw is humming again.
Kash