Hello, my Makita BHX2500 4-Cycles was stored -incorrectly- with the Blower Tube pointing up, when I tried to use the other day it started but it was smoking heavily, I turned it off and checked the carburetor's filter, it was soaked with oil, I replaced it and tried to start the blower again, but I was unable to. I removed the spark plug and found it to be full of black soot and a bit wet, I replaced it but still the blower wont start. Inspecting the spark plug once again I found it to have black soot. I know that at least the combustion chamber needs to be cleaned but inspecting the cylinder block assembly, I see no way to have access to it other than thru the small spark plug opening. I am a decent DIY, particularly when I have access to service manuals, but I can't find one online for this blower. Any help with suggestions how to tackle this issue is welcome.