Super Jet Bogging Bogging
- Thread starter Ahmed AN9
- Start date
- Location
- Rochester, NY
Could try running without the fuel filters and see if the problem goes away. If it does, then get new fuel filters. So simple to try, worth eliminating this possibility.
Could be an exhaust leak as well. Although not sure why fumes would get into the carbs only when nose up... but you never know.
schicks
Karma Enforcer
- Location
- West Michigan
Fuel petcock deleted?
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
How much fuel in the tank?
Bad Plug Wires (When ski is flat and running they make connection, but when jumping they are moving and loosing connection? - Does not explain the tail stands)
Check Fuel Pickups If Stiff, and have low fuel level they could be losing their suction (provided these are hose pickups with clunks).
Bad Plug Wires (When ski is flat and running they make connection, but when jumping they are moving and loosing connection? - Does not explain the tail stands)
Check Fuel Pickups If Stiff, and have low fuel level they could be losing their suction (provided these are hose pickups with clunks).
The same issue even when installing BLOWSION duel fuel pick up and I return back again to OEM with an extension.
Both fuel filters are new and I just had the off season maintenance that included all gaskets.
YES.
even with a full tank. and the spark plug coil is new OEM.
- Location
- Cruising Around
Water in tank?
- Location
- Rochester, NY
If you test and have the same problem with the fuel filters removed... no need to do this.
So, what do I have to consider if the problem still exist?
- Location
- Rochester, NY
This would tell you that your fuel filters and their line position is not your primary problem. What’s next? Noting that your problem only happens after nose up conditions.. what changes in this condition that is relevant? 1. The relative angle of gravity... 2. the location of fluids.
What causes bogging? Typically too much or too little of fuel or air.
Maybe these are obvious, but does help narrow down what to consider.. and what not to.
Kind of a stretch but could be some particulate inside your carbs. If not done so already a next step, could be to clean out every crevice inside the carbs with carb cleaner / air pressure. A rebuild may be a good idea while in there.
The box is sealed well. No moisture or salt observed when dismantled.
- Location
- South Africa
Try it with pre-filters removed. If the are a bit oily, any water on them will choke the carbs
The ski is perfect in the straight position (start, accelerating with various throttle opening and WOT) without any bog even in the water world it is good. What is happening exactly, only during the nose up (tail stand and jumps). So if I have a carb tuning issue I should see some symptoms at different conditions, but why only during nose-up?
What I start to think about is the waterbox as it is not mounted well. I will try this and come back again.
Thank you JC
Vumad
Super Hero, with a cape!
- Location
- St. Pete, FL
Not that this will fix your problem, but I went from 93 octane to 4ga 89 ethanol free mixed with 1ga of 110 race gas. My ski has never ran better. Like, way noticeably better. I also use yamalube 45:1 and sta-bil storage. I couldn't be more please with how much crisper it runs. I just ran the tank almost empty and put in the new mix. Ski was like a different machine before I had even used a quarter tank.