Max RPM on Stihl MS180

[kioni]

Anyone got any idea what the max rpm on an ms180 should be?
Adjusted the one and only carb screw today in order to get it to tick over without conking out and while setting this at around 2800 rpm found that the saw actually maxed out at 15200 rpm.
by the way the saw was full of fuel and the air filter was immaculate
sounds a bit high for a consumer grade saw eh?

 

[Dan Forsh]

A little bit, spec says 14000, actually the same as an MS200T

 

[Trigger-Time]

Mine was also running in the 15 range.........made a carb switch.
Sthil dealer here, drills out jet when one is running that fast (so he told me)



TT

 

[Spitzer]

Try Amsoil Saber Pro at 70/1 or 80/1

That should do the trick.

 

[chainsawredeemer85]

Mine was also running in the 15 range.........made a carb switch.
Sthil dealer here, drills out jet when one is running that fast (so he told me)



TT

Do you know how he did this? Are you saying he drilled out the jet with a plug? If so what did he do put a second screw in?

 

[hotshot]

TT was last seen in year 2012.

No adjustable high speed screw on his carb, so the dealer went up one or two drill sizes larger (one or two number sizes lower).

Likely had the Zama. Item 65 is the jet.

https://www.zamacorp.com/tclist.html?cnum=C1Q-S57B

 

[J D]

Most these run ludicrously lean. The main jet in the carb is fixed & over the years has gotten smaller & smaller. This jet can be replaced or drilled out to achieve an appropriate mix.
https://www.ebay.com/itm/155715139704https://www.google.com/url?sa=t&sou...MQFnoECBoQAQ&usg=AOvVaw0TlW3kTnn9CG-t6gRb4Fm4

 

[J D]

There are other posts about doing this for the 170/180 on AS. Generally a google search works better than the site search function

 

[EchovsStihl63]

Do you know how he did this? Are you saying he drilled out the jet with a plug? If so what did he do put a second screw in?

I would just swap on a Walbro WT215 carb that has the adjustable H/L jets. Very easy to do and combined with opening up the muffler a tad makes it a different saw. I can help if you're interested in what you need, I did mine in about 2 hours.