McCulloch cs350t wont idle

[Supergunner]

Hi Guys

First time poster so go easy on me!

I bought a 2nd hand saw that had no working chainbreak so i got a replacement and fitted it handy enough.

My new problem is the saw wont idle after i throttle it.

I have adjusted the idle screw a 1/4 turn to the left but it still wont idle. The chain runs pretty fast when brake is off without throttling it. Is it a clutch problem or a carb problem.?

I think i might need to give in and get it looked at by a professional but im broke:blushing:

Thanks in advance

[spudulike]

Hi Guys

First time poster so go easy on me!

I bought a 2nd hand saw that had no working chainbreak so i got a replacement and fitted it handy enough.

My new problem is the saw wont idle after i throttle it.

I have adjusted the idle screw a 1/4 turn to the left but it still wont idle. The chain runs pretty fast when brake is off without throttling it. Is it a clutch problem or a carb problem.?

I think i might need to give in and get it looked at by a professional but im broke:blushing:

Thanks in advance

 

The chain shouldnt run on a normal idle, undoing the idle screw to the "left" Anticlockwise?? will slow the idle down.

 

If the saw is dying when the brake is applied but not when the brake is off, it sounds like a clutch issue.

 

You could remove the clutch and see if the saw can hold an idle without it and adjust the idle without the clutch and then grease the needle bearing and refit it and try again - make sure the bar and chain are fitted otherwise it could undo and fly off. The clutch has a left hand thread - clockwise to spin it off!

 

I would check the clutch is greased/oiled and free spinning with the bar and chain off. I would then replace the bar and chain and adjust the idle so it idles with the brake off and then apply it and see what happens. If that stalls it, the issue is with the clutch/spring/drum/bearing but if it idles OK but dies again after revving then it is probably a carb setting - perhaps running a little rich but hard to say.

 

If the chain spins at idle then either the idle is too fast or the clutch spring or bearing are buggered!

[Supergunner]

Thanks for that spud ive a bit of homework to do so.

[adw]

This is the Husqvarna 435, the carb has splines on the adjuster screws so you would need a special tool to adjust them, if the saw takes a long time to return to idle i would say it was lean and needs to be a little richer on the L screw.

[Supergunner]

Guys i got the saw to idle after throttling but now after a couple of seconds running it cuts.

It feels like its revving faster than chain is spining if that makes sense.

On the clutch , its free spinning and the spring is intact. I couldnt remove clutch fully because it just turns and turns when i try screw it clockwise?

[adw]

There is a special tool to remove this clutch part no, 530031112 do not be tempted to strike the clutch legs as they will just snap off, jar the clutch against compression with the correct tool clockwise, it will spin off.

[spudulike]

Mmm, it is turning round and round because you are not locking the crank in place. If knocking it against the compression won't drive it off then you need to use a piston stop but use either one that sits between the piston and squish band or rope in the plug hole.

 

The piston stops that screw in to the plug hole may damage the piston crown if used, they are for plug holes that enter the combustion chamber from the very top.

[adw]

Are you sure this is a CS350, the clutch in the picture is the Poulon clutch?

[Supergunner]

Its starting to get to big for me, might take it to a pro.

The chain seems to be sticking in the cut even tough theres plenty of oil in it.

Im thinking it might be more of a carb prob instead of a clutch issue

[peatff]

It's a 36cc saw so it's not a 435 equivalent. The clutch spring looks a bit slack. Get the clutch off and check the oil pump drive behind it. Until you eliminate one problem for definite it's all guesswork.