The morning i went out to replace the pcv.
Crankcase vacuum tester.
Vacuum pressure testers cam correct crankcase vacuum pressure tester.
There is some argument about whether to do vac first and pressure second or pressure first and vac second.
After my local mechanic did a smoke test and checked the vacuum lines he suggested that the issue might be the pcv valve in the cover.
He verified this by doing the above linked test which showed no crankcase vacuum at idle.
Not wanting to replace the cover i ordered the pcv valve replacement from ecs.
Next pull a vacuum on the crankcase and see if that holds.
Test kit for testing crankcase pressure vacuum leaks in 2 stroke chain saws trimmers blowers 2 stoke equipment must use a vacuum pressure pump with the rubber block offs and adapter note.
Always gently rotate the crank in each direction to disturb the seal lips and verify that they hold under vacuum.
Price 19.