372xp

[Aled Hughes]

Hi all, just taken the saw appart with a suspected air leak on the base gasket(brake cleaner test) and finding this much carbon build up. What are your views? Thanks 

[adw]

Machine running to rich, or far to much oil in the fuel, or poor quality two stroke oil in the fuel, an air would have made it run lean, how much and who’s two stroke oil are you using? only ever seen it once but if the crankcase gasket is leaking then chain oil can enter the crankcase.

[Aled Hughes]

Customers saw, i will find out thanks 

[Dan Maynard]

Probably 20W50 as two stroke oil then.

[Aled Hughes]

31 minutes ago, Dan Maynard said:

Probably 20W50 as two stroke oil then.

Hes a farmer aswell !!

[Ollie_M]

8 hours ago, Aled Hughes said:

Hes a farmer aswell !!

Used engine oil then 😂

[Aled Hughes]

31 minutes ago, Ollie_M said:

Used engine oil then 😂

🙈😂

[Aled Hughes]

On 09/10/2023 at 20:36, adw said:

Machine running to rich, or far to much oil in the fuel, or poor quality two stroke oil in the fuel, an air would have made it run lean, how much and who’s two stroke oil are you using? only ever seen it once but if the crankcase gasket is leaking then chain oil can enter the crankcase.

Apparently he's used motul and husqvarna oil at 50-1.

[Creaky Limb Tree Care]

Mix is ok, saw is running rich due to a tailing off of compression due to the piston rings being worn (indicated by the carbon issue on the piston skirt!)