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Suzuki DF140Z outboard

problem after two minutes of idle time engine warms up, runs smooth everything working fine. then all of the sudden we lose spark and fuel to cyclinder 2 and 3 (only) then it runs rough.
we put a new engine block in it, check all the wires in the harness, continuity . Everything checks good. Install a ECM still has problem.
Check engine timing that's good. Install a new rectifer & regulator. Install new battery charge coil. Check all ECM main relays which is good.
 
sounds like you have a bad trigger

i would use a hair dryer and warm the flywheel and electrical components up

also swap the coils around
 
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