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My 150 came without dogs. I added them as a spare part after some times. Big improvement. The engine is small, though, you can't pry on the dogs like its bigger sisters, it would stall/make it slip. But they help to stabilize the saw and keep it cutting consistently. If not, the tank's seem...

Yes, that's what I mean. I think that "Ground" would be dedicated to the collect of undesired electricity, as in the lightening protection or a leak in a household appliance. "Mass" is the main metallic structure of a machine (electrically-wise) or return part on an electric board. At least for...

Found it. Well, actually, it isn't a little screw but a big one holding the case. And it wasn't at fault. The culprit is the mass wire cut in two places, just at the bottom of the handle. The cover is softened and the copper wires oxidized. I wonder if that's an other side effect of the canola oil.

Indeed, the tinny kerf is a problem in the fibrous woods or in the compressed areas like the reaction wood in the conifers. I have to found the little mass screw to tighten it, jerking the saw isn't no more enough to stop it. The choke works well for that but that sucks to fire it up again. I...

The H screw is completely hidden inside the carb. What you see to put the screwdriver on is a false screw which engages the real screw deeper in the carb. This false screw has slots molded in it. The end of the little aluminum pin is inserted in one of the slots, so you can't turn the screw...

With the benefit of a very low kickback tendency, from the micro chain and the tiny nose. I don't have broken a file, yet. Maybe if I sneeze...

Me too. I love it. Except when this stupid dampening spring brakes in the recoil starter. The ratchet becomes properly disconnected from the starter pulley, as this one is actually in two parts:X

Yes. You can add that the fungi can very well deal with that if there is some wood to eat as the main menu. It isn't like there is no more wood at all left after a cut:/: But I agree to avoid the mineral oil next to the water, ponds, rivers ... We can clearly see the spots spreading on the...

The gumming of the canola oil is it's biggest downside, at least the one I use. It's more stable than some other bio oils like sunflower though. If a chain (rocked) stays on the shelf for a good time, it becomes completely rigid. Same with a chainsaw, the oil pump can't work anymore, its piston...

Yesterday my baby saw take again a free ride to the ground, hopefully on a cushion of small cedrus limbs. The suspension ring broke again.:X My first repair hold fine but the plastic housing broke and let go the other side of the "U" ring (the clutch side). I have to make some improvement and...

Look not only the screen, but the exit hole of the muffler too. My muffler doesn't have a screen and the deflector is welded, so I can see nothing from the outside. I had to cut the muffler's bottom to access at the exit hole. Mine was reduced from 1/4" to 1/8" by the carbon build up. At first...

My baby saw was suddenly acting a few days ago. She stayed at almost full speed at the end of a small cut, not slowing down at all. Then, the same straight from each start, without a bit of idling, no loss of power in the wood. I though of an air leak or a gas starvation, but that didn't match...

The nose's sprocket is the weak point of the bar. The aluminum central rivet wears, the sides spread and the bearing looses its balls. The kill switch had a problem but it was the wire cut at the knuckle. The canola oil tends to clog the tiny pump time to time. But the main point for me with the...

I can't see how to do that properly and efficiently. The round files are made for concave edges, not convex, overall with a such small radius. It would be a pure misery to file a bunch of rakers free hand with a round file. Doable with a steady guide though, but it will end with a very curious...

Yes, that's a lack of chain oil. Mine has drunk a lot more tanks and this oiling problem comes often. I use canola oil in it, I can't say about the mineral oil. It seems that this little beast has some hard time to manage the saw dust / chips, like her sister 200T, especially on flat position...

It looks like mine when she was suffocating by build-up in the exhaust. I can add few power in the cut and need to rev-up before touching the wood. I thought "she isn't old enough to begin an air lick or lack of gas by clogging the filters or wore the carb's membrane, so she probably can't...

I didn't found any spark arrestor.

On mine, the deflector over the real exhaust hole isn't screwed but electric-welded. I can't easily take it out (in hope to put it back cleanly after that) to drill the recessed area around the hole. The saw was acting, no more power. I wanted to clean the muffler because I suspected some...

I removed the limiter on my ms150 but I don't recall to have to pull out anything in the carb itself. On mine, the screw is inside a housing on the carb body, covered by a small zamack part with a screw head print. A small aluminum pin in the housing acts as the actual limiter on this part and...

I think that the ring popped out probably by a side load with the biner inverted (a strong dog leash biner), like in the first Petzl Zigzag's failure. The ring isn't closed but has a "U" shape. One end is tied to a small metal plate, the other is just held in a hole in the plastic body. During...