Logo

Mercury 115 l6 ignition pb

rs2grey

New member
hi,
i 've a 1984 merc 115.
the trouble is :
engine run fine at iddle, start fine. but when i throttle up , the number 4 cylinder shut off....
try other coil , try to swap the 2switch boxes , same cylinder with no fire when trottle up .
when i trottle up out of gear, manualy with only the carb pickup (without using the ignition variation mecanism) it fire well on number4 .....
trigger issue ?

engine with new pistons, and rebored. new reeds ,new sparks. all gaskets new.
 
Last edited:
thank's.
the pb was a viloet wire of the trigger almost cut.
but i don't understant why this affect the cylinder4 .... isn't the trigger brown wire for this particular cylinder ??
 
Back
Top