stihl 038

[stewymc]

anybody any ideas what would cause the saw to flood through the high speed jet when on idle

[spudulike]

anybody any ideas what would cause the saw to flood through the high speed jet when on idle

 

Three things to check - the needle valve on the metering arm is seating as it should, the metering arm is set to the correct height and if this doesn't do it, the high speed check valve (you refer to it as a "Jet" isn't sealing as it should!

 

Not sure if the check valve on this carb can be changed, some can. A US cleaner may sort it if it is the issue or carb cleaner down the high speed screw hole may resolve it.

 

The most likely cause are the first two issues listed though!