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Thanks Four Paws, I am not that tall so I had a dry run with the saw and and the 20" was too long for comfort,16" bar if you are falling and bucking...20" if limbing.
I am not sure my carb is adjustable, I did not take off the cover to look, but the cover has two solid plugsThe 490 is indeed an updated 488. They are nice saws, and have a fully adjustable carburetor, although you need the special wrench.
The 490 will come alive with a muffler mod and proper tune. Base gasket delete = even better.
Are you talking about a tool for the carb on the 488 or the 490 like in my picture above.
When you mention base gasket, is this the gasket between the carb and the engine or the
exhaust manifold and the engine, or the gasket / shims between the cylinder and the block.
Thanks & Regards, john
Thanks Four PawsYes, you need a special tool to adjust your 490 carburetor.
The base gasket is between the cylinder and case.