funkyfresh
Recruit
- Joined
- Mar 30, 2015
- Messages
- 3
I recently bought a non running boat with an evinrude E90eledr 90hp motor. I've got it running well at WOT and idle, but at about 1000-2000 rpm it is rough, shakes, smokes a bit, and sounds like it's down a cylinder. If I jab the throttle to full it takes off with no hesitation and runs great. Also, while it is missing I tried pushing my key in to add fuel but it doesn't clear the problem, only bogs it down. Here's what I've checked
-Cleaned the carbs, new primer bulb, hoses, o rings
-Had a mechanic set the spark advance lever sync
-New plugs, champion Q78 (forgot the whole s/plug number)
-Spark wires test good with an ohm meter
-Stator tests good @ .3ohms resistance, puts out 12.5v at idle, and climbs to 14.4 around 1500 rpm
-Compression is 135-140 across all cylinders
The plugs all look fairly uniform but they are always wet, and black. What else can I check?
-Cleaned the carbs, new primer bulb, hoses, o rings
-Had a mechanic set the spark advance lever sync
-New plugs, champion Q78 (forgot the whole s/plug number)
-Spark wires test good with an ohm meter
-Stator tests good @ .3ohms resistance, puts out 12.5v at idle, and climbs to 14.4 around 1500 rpm
-Compression is 135-140 across all cylinders
The plugs all look fairly uniform but they are always wet, and black. What else can I check?