Stihl Ts400 Cut Off Saw Carb Carburetor Air Filter "piston" Questions


i have a husqvarna partner K960 concrete saw that the skirt of the piston on the exhaust side has shattered, there is no scoring in the bore, the actually sides of the piston above the damage has no ...

Ad ts420 with normal gas. Now it wont start. What messed up? How do i fix? it will be the pot and piston mate Not sure what a cooking device has to do with a cut-off saw, but your piston and ...


early 90's stihl 029 farm boss difficult to start and won't start when hot. could this be a piston and rings problem? It very well could be. Pull the muffler and inspect the piston and ...

Question about Makita Saws

1 Answer

which is intake side of piston Arrow on the top of the piston goes to the exhaust port.

...or its to late , on the way it should but when it is not good closed it leaks in much cases and the piston had often grooves by polution from graveldust it can have lost compression by it first to do ... thank you; masoud replace the decompression valve. also check for carbon buildup on top of piston. usually when a saw stops on its own after 5 min or so.... the piston and jug are scored and ...

...if any special tools are needed. A length of starter cord or nylon rope may be used instead of the piston stop (retain 6" ± so you can remove it). Make sure the piston is near the top of the ...

... it may also be sucking in extremely abrasive minerals that are wearing down the intake side of the piston. I would either shine a light through or completely remove the carb, and look inside the ... any help much appreciated. It could be seized, or had dust throught the filter wearing the piston and rings, if this is the case it will be a new cylinder and piston required, it is possible ...

...test would help narrow it down. You could also pull the muffler and visually inspect the piston and cylinder for any scoring. If you do a compression test look for 90psi or more. If around ...

Not finding what you are looking for?
Stihl Ts400 Cut Off Saw Carb Carburetor Air Filter Logo

41 questions posted

Ask a Question

Usually answered in minutes!

Top Stihl Saws Experts

Cindy Wells

Level 3 Expert

6254 Answers

Pieter Vleeshouwers
Pieter Vleeshouwers

Level 3 Expert

2028 Answers


Level 3 Expert

85239 Answers

Are you a Stihl Saw Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides