MS150 won't turn off!

[Swampster]

As title, 150 starts fine and runs fine but won't turn off at the flick of the switch. Once the switch is in the off position, a squeeze of the throttle will cause the engine to rev, and then die.

Short circuit terminals inside the handle are good and make good contact but the problem persists.

Has anyone else had this issue? I've been hearing it's not unknown but what is the solution?

Cheers

[Joe Newton]

Under the top handle is a white plastic cover on the rob body of the saw. Remove the sprocket cover and this will pop off. There's an earth connection underneath. Clean it and then try.

[10 Bears]

I had a similar issue on a Husky 346, in that the kill switch would not turn the saw off so I used the choke to stop the saw.

 

Stripping it down, I found that the 2 leads going to the switch had corroded through at one point, so I replaced/soldered/shrink wrapped the offending section and I was back in business.

 

Perhaps this is a similar problem for you, and the potential break in the line is not fully corroded through so is partially short circuiting?

[TIMON]

My 150 does the same. I just use the choke.

[bythamboy]

I have same problem , but now I can't get it to start , problem in reverse

[spudulike]

Joe is probably bang on, the MS150 does fail in this area and the engine mounts can also come undone - the earth connects to the top mount and is as Joe mentions! In bad cases, the bolts shear or just mash up the mount.

[Joe Newton]

Joe is probably bang on, the MS150 does fail in this area and the engine mounts can also come undone - the earth connects to the top mount and is as Joe mentions! In bad cases, the bolts shear or just mash up the mount.

 

 

Haha get in!

 

Not a total div am I!

[spudulike]

Haha get in!

 

Not a total div am I!

 

Now how could I comment on that:sneaky2:

[Joe Newton]

Now how could I comment on that:sneaky2:

 

 

Fill your boots, my local Seddons referred to a 20" 3/8 chain as a "speciality item" before saying it would take a week to order in.

 

You're in no danger of losing my custom mate!

[spudulike]

Fill your boots, my local Seddons referred to a 20" 3/8 chain as a "speciality item" before saying it would take a week to order in.

 

You're in no danger of losing my custom mate!

 

In my books a speciality item is Crispy Duck & Hoi Sin Sauce Pancakes:thumbup: