Stihl ms151 not ticking over

[West92]

My Stihl ms151 will not take over. I climb up a tree start it as soon as I press the throttle, it cuts out could this be the time screws any help would be great thanks a lot

[kram]

Each time I've had this on other saws, my air filter has unexpectedly become caked in shite, it can be suprising how quick it can cake up.

 

It may be the idle screw is a bit low but adjusting it could be hiding other issues. Always clean the air filter first.

 

Are you warming it up before you climb?

A full throttle start can get a saw running and I usually start my 2511 like that, as it will start first pull.

 

How old is your fuel? More than a couple weeks, tip it out and a get a fresh mix to rule that out, always helps tho I happily use 3 month old mixes.

 

Next thing to check is a fresh NGK sparky and check the gap as they are rarely the specified 0.5mm that they should be for mine - I dont know if thats the same for a 151.

 

 

 

Edited 17 minutes ago by kram