Check the fuel filter, air cleaner, and muffler for plugging. Inspect the fuel lines for decay/damage. Make sure that all of the carburetor fasteners are tight including those that hold the carburetor to the cylinder. Go to: http://www.drystacked.com for a helpful 12 page article on Walbro carburetor theory and troubleshooting. Pay particular attention to the location of the lower chamber gasket/diaphragm components. The two jet screws are likely to be 'D' headed which means that you need a special screwdriver to adjust them and servicing dealers are supposed to the only ones allowed to perform this adjustment (thanks to the EPA in the USA). Hope this helps!
Exactly where do you look on the link? I opened it and nothing but concrete blocks.Exactly where do you look on the link? I opened it and nothing but concrete blocks.
Answers & Comments
That saw should have what they call a pac man screw.Its a special tool for ajusting the carb.You may be able to fine it on ebay.
Check the fuel filter, air cleaner, and muffler for plugging. Inspect the fuel lines for decay/damage. Make sure that all of the carburetor fasteners are tight including those that hold the carburetor to the cylinder. Go to: http://www.drystacked.com for a helpful 12 page article on Walbro carburetor theory and troubleshooting. Pay particular attention to the location of the lower chamber gasket/diaphragm components. The two jet screws are likely to be 'D' headed which means that you need a special screwdriver to adjust them and servicing dealers are supposed to the only ones allowed to perform this adjustment (thanks to the EPA in the USA). Hope this helps!
Exactly where do you look on the link? I opened it and nothing but concrete blocks.