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Old craftsman model 358352151 with 145 blade - starts with fuel added to carb but will not continue to run - new fuel line, fuel filter and gaskets - ?? why - is carb ?

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If you have good compression and spark and spark at the right time and mufler and ex port are clear and you have rebuilt the carb correctly and fuel lines are not pinched anywhere

check you have put the pump diaphram on 1st then the gasket and cover, and made sure the inlet screen is clear

check you have set the meter lever flush with chamber floor and have fitted spring under the lever correctly
and fitted the gasket then then metering diaphram and the cover

lo and hi screws should be set to 1 1/4 turns out from lightly seated as a base setting

check the manifold gasket and carb gasket for a air leak or a crack in insulator block

then check for a air leak at base joint or crankcase seals

2 strokes crankcases need to be air / vacuum tight in order to draw in and pump mixture let alone operate carb diaphrams

always remember F A C T S

F = fuel A =air C = compression T = timming S = spark

then primary compression ( ie air tight cases)
have a recheck and let me know what you find

cheers pauly46

Posted on Sep 10, 2010


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