Stihl MS 180c no high rpm's

[fastback4]

I used it in May and now it has no high rpm's but idles fine. The chain lock is not engaged. If I throttle it up slowly it tries to get high rpm's but flutters out back to idle. I put on new filter and fuel lines I had for it and checked the needle and seat assembly and screen in the carb and brake cleaned everything well. New fuel, new plug, same results...no high rpm's...advise here please....Tom

 

[redunshee]

I used it in May and now it has no high rpm's but idles fine. The chain lock is not engaged. If I throttle it up slowly it tries to get high rpm's but flutters out back to idle. I put on new filter and fuel lines I had for it and checked the needle and seat assembly and screen in the carb and brake cleaned everything well. New fuel, new plug, same results...no high rpm's...advise here please....Tom

Not familiar with with this saw but maybe ur Lo and hi needles need adjusting. I'd start there first.

 

[fastback4]

The MS 180C only has a idle adjustment...no high/low screws

 

[Rockjock]

I used it in May and now it has no high rpm's but idles fine. The chain lock is not engaged. If I throttle it up slowly it tries to get high rpm's but flutters out back to idle. I put on new filter and fuel lines I had for it and checked the needle and seat assembly and screen in the carb and brake cleaned everything well. New fuel, new plug, same results...no high rpm's...advise here please....Tom

I have a similar issue with a 017, intake boot clamp was a cheap plastic one. used one off a 024av and no issues since. the 180c has a non adjustable carb yeah? Worth a check

 

[sgrizz]

I had this happen last year on my 180 , idled fine reved up cold but once it got warm it would fall on its face. I fixed it by putting a new carb on it . they are pricey but I wasn't going to take it apart.

 

[BloodOnTheIce]

I had this happen last year on my 180 , idled fine reved up cold but once it got warm it would fall on its face. I fixed it by putting a new carb on it . they are pricey but I wasn't going to take it apart.

35$ is pricey?

 

[z71mike]

Sounds like the carb is plugged up. Take it apart and carb cleaner the hell out of it.

 

[jbighump]

just give 27 bux for one a couple weeks ago...the kits are $12 fwiw

 

[redunshee]

The MS 180C only has a idle adjustment...no high/low screws

Ok. Non adjustable carb,huh.

 

[71dart]

Make sure the muffler screens not plugged up.

 

[mountainlake]

Make sure the muffler screens not plugged up.

Right That's the first thing to check. Steve

 

[sgrizz]

35$ is pricey?

Well I don't remember what I paid for it last year so maybe it wasn't pricey.

 

[fastback4]

Well I don't remember what I paid for it last year so maybe it wasn't pricey.

I installed a new OEM $25 carb, cleaned the muffler screens and we are cutting wood again....thanks for replies...