Hi.
1987 v4 110hp
Not totally sure of the model number as the sticker isnt there my best guess is J110TLCUR.
I'm at my ends with this motor.
I'd take it to a shop but they are 3 weeks booked up.
Cyl 4 not running.
Tested spark with a spark gap tester ✅
Changed coils ✅
Changed plugs ✅
Changed...