Husky 236 cutting out

[CTARRY]

been busy today trying to do some work in the garden (whilst the weather was nice for a change)

 

Anyway my normally reliable 236 kept cutting out. first was around 5 mins after the first start of the day. then it was the same thing throughout the day after starting, and also sometimes half way through cutting.

 

could it be a carb problem, maybe needs adjusting?

 

it hasn't been adjusted before because i got it new

 

if so, how do i do it without a tachometer

 

thanks

[spudulike]

In basic terms, a working engine needs fuel spark and compression - it is more complicated than that but those are the most basic priniciples of combustion.

 

Your problem is probably fuel/carb related as it is the most common issue followed by compression.

 

Firstly, is your saw low hours and in good condition or old and well used?

 

Secondly, when running, does the saw idle briskly with the chain not spinning or does it sound slow to the point of dying.

 

Thirdly - has the saw run fine in your possesion for a good while before this started?

 

Have you always used fresh fuel oil mix in the engine - do you clear the fuel tank of petrol if the saw is going to stand for a couple of months?

 

Lastly - you don't NEED a tach to get a saw running OK, it just helps you set it to factory limits and gets the best out of your saw.

 

Has anyone fiddled with the carb settings on your saw? If not, it will probably not need adjusting as the factory settings will be pretty much fine and the problem is probably elswhere.

[CTARRY]

1. It is only 1 year old and very little use - i would say approx 5 hours max in the year. just use it to trim small branches in the garden. so is still in good condition

 

2. when it starts, when i release the chain brake for the first time that session, the chain will spin without me touching anything. with the brake on, it doesn't sound slow to the point of dying. but it doesn't idle briskly either. just somewhere in between if you know what i mean

 

3. it has always run fine for me, never cutting out. no one has fiddled with it as i only use it. i don't trust people but the chain has always spun from the beginning when releasing the chain brake for the first time when starting from cold

 

4. yesterday was fresh fuel/oil mix. i drain everything if i don't plan to use it for a while

 

thanks

[CTARRY]

what are the steps to adjust the carb without a tach?

[Stubby]

Just a thought , could the air filter need a clean ?

[CTARRY]

i did think that. i checked that, clean as a whistle

[spudulike]

First thought is that the chain should not spin at idle, this shows either the idle is too fast, the spring/springs need replacing or there is something binding between the clutch/crankshaft and drum - baling twine is a favourite.

 

The binding between the clutch/crankshaft and drum can cause the machine to stall when the chainbrake is attached.

 

Common fuel related problems are sawdust in the carb gauze filter under the single central screw cover - that can cause bad top end and poor idle.

 

Does the machine stall if the chainbrake is on or off or both?

[CTARRY]

thinking about it, it only stalls when the brake is off

 

thanks

[CTARRY]

what i do find strange is when i start the saw, release the chainbrake and the chain spins, but when i press the throttle and then release, the chain stops as you would expect (before i put the brake on). so it only spins idle at the very start of the session

[wisewood]

what i do find strange is when i start the saw, release the chainbrake and the chain spins, but when i press the throttle and then release, the chain stops as you would expect (before i put the brake on). so it only spins idle at the very start of the session

 

I may have read this wrong but it sounds like it's spinning at half throttle ie trigger blipped at starting position. Once you press the trigger you release the half throttle and it goes to an idle position the chain stops spinning.

 

This doesn't answer your original query on stalling though sorry.