Chainsaw carb adjustment?

R

Russell

Well-known member
I bought a new Stihl and it's a right git to get running.

It starts easy enough but when cold it keeps stalling if you go anywhere near the throttle.
It will also die by it's self.
Once you've got the pos running long enough it will run fine it's just getting it to warm up.
Would the low end screw help this?
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
I bought a new Stihl and it's a right git to get running.

It starts easy enough but when cold it keeps stalling if you go anywhere near the throttle.
It will also die by it's self.
Once you've got the pos running long enough it will run fine it's just getting it to warm up.
Would the low end screw help this?
deffo ... does it have a half choke position?
 
R

Russell

Well-known member
Yes its got full choke, half choke and then run.
You get one pop on full choke then I stick it on half choke, it revs then dies. I then put it on run and battle to keep it running. If you put it on half choke with the chain brake off it may get it going but seams a risky way of starting.
I should have got a Makita or husqvarna, my Stihl blower is a bigger to start, my 15 year old Makita on the other had is one pull and it's started.
 
doobin

doobin

Well-known member
I take it it's an MS181?

They can be tricky to start. Get the pop on full choke, then switch to half choke, start her up with the chainbrake off and let it burble a bit. Hold it with the handle between your legs when starting- this is the accepted safe way to start a saw. You'd fail your saw test for doing it with the chainbrake off, but it's that's bollocks anyway. Mechanical aptitude should overule some bloody chair polisher who's never done more than fell a couple of trees before becoming an assessor.

After a few seconds blip the throttle repeatedly. Yes, you sound like you're a prick pretending you're on Axemen, but this get her going without giving it wide open throttle long enough for her to bog down. After a few seconds of this you should be able to hold it wide open for a good few sconds whilst muttering 'come on you bitch' as she clears her throat. I always feel bad doing this on a cold saw but technically the oil is there (in the fuel) and it's the only way to get it to run right from the off.

Don't mess with the low screw if it's a new saw- it's very unlikely to need it and all you'll achieve is the chain running by itself due to a high idle once warmed up. You could try screwing it in a smidge if you really want, but as you say, they are fine once warmed up- there's just a knack to it.
 
CPS

CPS

Well-known member
Mine does the same... and funny enough I think it came from the illegal of white too😀
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
3 screws! Hi and low jet wind both in then both out by 3/4 turn, throttle idle adjust once running, make sure air filter clean!
different saw but, .... just - as in 20 min.s ago - stuck a new carb on Charlie .... set the screws to the same as what came off - hi was 1.25 turns out, lo was 1.5 turns out .. started 2nd pull after a splutter on full choke ... taken lo out another quarter turn once running, idling nicely and it revs to infinity :giggle: ... will tweak it once it's had a warm up tomorrow.;)

WP_20210802_17_05_35_Pro.jpg
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
I take it it's an MS181?

They can be tricky to start. Get the pop on full choke, then switch to half choke, start her up with the chainbrake off and let it burble a bit. Hold it with the handle between your legs when starting- this is the accepted safe way to start a saw. You'd fail your saw test for doing it with the chainbrake off, but it's that's bollocks anyway. Mechanical aptitude should overule some bloody chair polisher who's never done more than fell a couple of trees before becoming an assessor.

After a few seconds blip the throttle repeatedly. Yes, you sound like you're a prick pretending you're on Axemen, but this get her going without giving it wide open throttle long enough for her to bog down. After a few seconds of this you should be able to hold it wide open for a good few sconds whilst muttering 'come on you bitch' as she clears her throat. I always feel bad doing this on a cold saw but technically the oil is there (in the fuel) and it's the only way to get it to run right from the off.

Don't mess with the low screw if it's a new saw- it's very unlikely to need it and all you'll achieve is the chain running by itself due to a high idle once warmed up. You could try screwing it in a smidge if you really want, but as you say, they are fine once warmed up- there's just a knack to it.
who the hell told you that Doob? :oops::oops: ......... sounds 'kin risky to me

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remind me never to buy a 181 if they're that bloody cantankerous
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
Yes its got full choke, half choke and then run.
You get one pop on full choke then I stick it on half choke, it revs then dies. I then put it on run and battle to keep it running. If you put it on half choke with the chain brake off it may get it going but seams a risky way of starting.
I should have got a Makita or husqvarna, my Stihl blower is a bigger to start, my 15 year old Makita on the other had is one pull and it's started.
got a husqy blower, hedge butcherer and strimmer/brush cutter all of which are usually first pullers.
Me Stihl 028 and 034 saws are generally easy starters but been a PITFA lately ... but have had some hard use too ...
028 is back to usual after a new carb this evening ....service kit is still in the post for the 034 :rolleyes:
 
Lancs Lad

Lancs Lad

Well-known member
Could easily descend into Stihl Vs husky.😃 Think there bad try a mk1 550xp...how mines in one piece I'll never know 🤬🤬
 
Canal Navvy

Canal Navvy

Well-known member
On a chainsaw assessment you would be expected to start a cold saw on the ground, rear handle between the legs only if ground conditions are are unsuitable for a ground start with a warm saw 😉
 
Bri963

Bri963

Well-known member
Got to be honest, I spluttered about this as when I did my training 42 years ago it was always start on the ground. However, Husky say on the ground cold, but either on the ground or between your legs when warm. I’d like to see anyone start my 084 by holding it between their legs, though.

on edit, couldn’t find anyone else showing that method. Mind you, all that goes out the window with a 36 volt Makita.
 
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doobin

doobin

Well-known member
Got to be honest, I spluttered about this as when I did my training 42 years ago it was always start on the ground. However, Husky say on the ground cold, but either on the ground or between your legs when warm. I’d like to see anyone start my 084 by holding it between their legs, though.
Training is bollocks. Holding the handle between your legs is perfectly safe, if it’s good enough for a warm start why not a hot start? You could just as easily argue that starting it in the ground is more likely to give you back problems.

And yes, I could start your 084 holding it between my legs.

The giveaway for a pikey tree surgeon is starting it by yanking the cord with one hand whilst holding/pulling the sawvthe other way with the other!

@Monkeybusiness !
 
Canal Navvy

Canal Navvy

Well-known member
The giveaway for a pikey tree surgeon is starting it by yanking the cord with one hand whilst holding/pulling the sawvthe other way with the other!

@Monkeybusiness !
[/QUOTE]

Unless up a tree and the work position doesn't allow a between the legs start 😁
 
S

Smiffy

Well-known member
Training is bollocks. Holding the handle between your legs is perfectly safe, if it’s good enough for a warm start why not a hot start? You could just as easily argue that starting it in the ground is more likely to give you back problems.

And yes, I could start your 084 holding it between my legs.

The giveaway for a pikey tree surgeon is starting it by yanking the cord with one hand whilst holding/pulling the sawvthe other way with the other!

@Monkeybusiness !

My training was only start on the ground when cold, I think the advice changes like the weather.
I think as you don't drop start it it's not going to kill you either way.
 
Bri963

Bri963

Well-known member
Unless up a tree and the work position doesn't allow a between the legs start 😁
[/QUOTE]
Or you’ve already amputated your own leg.
 
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