FstaRockr Burns
Regular Contributor
My lower plug on my 3 cyl 60 mariner is always wet, the middle one so so - top one burns perfectly.. like it gets progressively worse -
Ive always had spark on all three - checked that many time over with timing light..
would a bad trigger fire one or 2 cylinders at the wrong time causing incomplete burning?
and what would a faulty switch box do - not fire at all?
I tested the pri and sec side of all 3 coils - they were exactly the same readings -
or could a stator thats not outputting enough volts cause weak spark?
bit rainy here and motor in pieces, but trying to put her back together this weekend then ill do some ignition troubleshooting -
fyi - motor wd always start no problem, but has a high speed miss and lacks about half the power - and takes time to reach speed..
alot of soot on drive shaft - so some fuel aint getting burnt. new plugs all round and all connections incl ground checked - carbs cleaned 6 times now - replaced all filters and hoses.. pump seems to send thru more than enough fuel.. diaphragm is not torn - still in good shape - battery charged (not agm type) - regular lead acid.. 8 months old..
Ive always had spark on all three - checked that many time over with timing light..
would a bad trigger fire one or 2 cylinders at the wrong time causing incomplete burning?
and what would a faulty switch box do - not fire at all?
I tested the pri and sec side of all 3 coils - they were exactly the same readings -
or could a stator thats not outputting enough volts cause weak spark?
bit rainy here and motor in pieces, but trying to put her back together this weekend then ill do some ignition troubleshooting -
fyi - motor wd always start no problem, but has a high speed miss and lacks about half the power - and takes time to reach speed..
alot of soot on drive shaft - so some fuel aint getting burnt. new plugs all round and all connections incl ground checked - carbs cleaned 6 times now - replaced all filters and hoses.. pump seems to send thru more than enough fuel.. diaphragm is not torn - still in good shape - battery charged (not agm type) - regular lead acid.. 8 months old..