fishcrazy50
Seaman Apprentice
- Joined
- Nov 13, 2009
- Messages
- 34
Merry Christmas all.
I have a 1986 Mercury 135 Black Max. This summer it started bogging down. It went to a local dealer/mech 3 different times to no real effect. Fuel lines and filter replaced. Carbs rebuilt. The owner thinks something is causing the floats to stick.
I removed the tank today. Fuel inside is like new. The interior of the aluminum tank is shiny and clean. I use several fuel treatments, mainly marine Sta-bil, but have also used Lucas and Full Throttle.
Engine is oil injected, carb'ed.
Today when spraying fogging oil down the carb throats, the engine never bogged down when I sprayed any of the 3 carbs on the engine's left side, same side as the oil injection.
I placed a timing light trigger on all 6 plug wires. The timing light flashed on each wire. I am under the impression that indicates the plugs are firing.
I have air and spark, therefor that leaves fuel. I opened one of the drain plugs and fuel did trickle out.
Is there a common point in the left side fuel supply?
Any thoughts?
I have a 1986 Mercury 135 Black Max. This summer it started bogging down. It went to a local dealer/mech 3 different times to no real effect. Fuel lines and filter replaced. Carbs rebuilt. The owner thinks something is causing the floats to stick.
I removed the tank today. Fuel inside is like new. The interior of the aluminum tank is shiny and clean. I use several fuel treatments, mainly marine Sta-bil, but have also used Lucas and Full Throttle.
Engine is oil injected, carb'ed.
Today when spraying fogging oil down the carb throats, the engine never bogged down when I sprayed any of the 3 carbs on the engine's left side, same side as the oil injection.
I placed a timing light trigger on all 6 plug wires. The timing light flashed on each wire. I am under the impression that indicates the plugs are firing.
I have air and spark, therefor that leaves fuel. I opened one of the drain plugs and fuel did trickle out.
Is there a common point in the left side fuel supply?
Any thoughts?