Beersboatsnboobs
Recruit
- Joined
- Sep 15, 2013
- Messages
- 3
So I've been trying to figure this motor out for a while. Normally I can scour the Internet and find answers for anything, but this one is different.
The motor has 115 psi on each of the 3 cylinders.
It has a brand new stator from CDI.
Brand new switch box from CDI.
Trigger passes tests.
3 new ignition coils, 3 new plug wires. 2 different sets of new plugs.
All electrical connections have been taken apart and cleaned thoroughly.
I've had the carbs off a few times and they're spotless, new gaskets throughout, new needles, and floats set to 7/16".
I have spark on all cylinders, and there have been times where it seems to run on all 3, at which point it seems to idle fine, but for the most part I have to keep it at half throttle for it to run, and I always need full throttle for it to start.
The top cylinder is consistent: while the motor is running, I can yank plug wires one at a time, and the only one that consistently has a significant drop in Rpms is the top cylinder. The others are hit or miss.
Cyl #1 spark plug looks black.
Cyl#2/3 plugs look white, as if they aren't getting fuel.
Do I have reason to suspect reed valves?
When I crack the throttle plates open while running, I can shine a light down the carbs and see equal amounts of fuel being pulled from the tubes into the engine. Why wouldn't this fuel be making it into the cylinders?
Is there a chance that I have a bad seal in the crankcase between cylinders 2 and 3?
Please help me, this boat is making me hate boats, and boats are one of my 3 favorite things! Help!
The motor has 115 psi on each of the 3 cylinders.
It has a brand new stator from CDI.
Brand new switch box from CDI.
Trigger passes tests.
3 new ignition coils, 3 new plug wires. 2 different sets of new plugs.
All electrical connections have been taken apart and cleaned thoroughly.
I've had the carbs off a few times and they're spotless, new gaskets throughout, new needles, and floats set to 7/16".
I have spark on all cylinders, and there have been times where it seems to run on all 3, at which point it seems to idle fine, but for the most part I have to keep it at half throttle for it to run, and I always need full throttle for it to start.
The top cylinder is consistent: while the motor is running, I can yank plug wires one at a time, and the only one that consistently has a significant drop in Rpms is the top cylinder. The others are hit or miss.
Cyl #1 spark plug looks black.
Cyl#2/3 plugs look white, as if they aren't getting fuel.
Do I have reason to suspect reed valves?
When I crack the throttle plates open while running, I can shine a light down the carbs and see equal amounts of fuel being pulled from the tubes into the engine. Why wouldn't this fuel be making it into the cylinders?
Is there a chance that I have a bad seal in the crankcase between cylinders 2 and 3?
Please help me, this boat is making me hate boats, and boats are one of my 3 favorite things! Help!
