Thread: Impulse tube

Back in 2012 I ran over my ms250 https://www.woodworkforums.com/showth...t=run+chainsaw
It never ran well after I had it apart to fix the handles, I haven't needed it since so I put it to one side (as you do) so a month or two back I got some parts and was in the process of having another look at it just days before the cyclone hit, with trees everywhere I thought it might be good to have the saw going, whilst looking at it I noticed one particular tube looked a bit dusty inside the end of it, that looks like it hasn't been hooked onto anything I thinks to myself, turns out to be the impulse tube that goes from the crankcase to the carby,
IMG_0743 (500x375).jpg
This is the carby side of the rear handle, the hole under the right side stud leads to the spigot which the impulse tube pushes onto, most likely I didn't push this tube back onto the spigot after I repaired the handle, with the saw all back together and a bit of a tune up it's running quite nicely and it looks like it will be getting a bit of a workout for a while yet.



Pete