Question about Echo 30.1CC Chainsaw With a 14 In.bar and Chain
Basics to check:
1) Spark plug - brown or dark brown - OK
- aluminum or silver - piston/cylinder scored
a) is it carbon or fuel fouled
b) is there spark
2) Compression - 125 to 150 psi
3) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside
Please double check the gasekts/diaphragms for proper installation
Posted on Nov 12, 2009
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Posted on Jan 02, 2017
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