I have a Craftsman 6.25hp push mower - model 917.388350. It has a Tecumseh engine - model 143.006200. It has always run great but the breather valve was loose and it was allowing oil to leak out and spray all over the engine. The breather tube was also weak and pinched.
I finally decided to replace both the breather assembly and breather tube which required removing the flywheel. I replaced the parts this evening and changed the oil and started it up. It runs terrible now...slow and rough. I didn't make any adjustments to the carb so I'm not sure what the problem is. Is the breather tube supposed to be pinched like it was? That's the only thing I can think of that is different now. If anyone has any advice I would really appreciate it.
Thanks
I finally decided to replace both the breather assembly and breather tube which required removing the flywheel. I replaced the parts this evening and changed the oil and started it up. It runs terrible now...slow and rough. I didn't make any adjustments to the carb so I'm not sure what the problem is. Is the breather tube supposed to be pinched like it was? That's the only thing I can think of that is different now. If anyone has any advice I would really appreciate it.
Thanks