Bogging After Sub

brapperdoodle

brapperdoodle

Location
Asheville, NC
I am still having a weird issue where my ski will bog after it gets subbed. When doing nose stabs, I'm not able to pull myself back out of the water. This is especially annoying because i'm getting pretty good at them and I should be able to rip away out of the trick. This also happens anytime I completely submerge the ski. I keep thinking its not able to breathe under water and get the correct amount of air to actually rev the engine. But I have seen enough videos of people not having this issue when they go under. I dont believe the ski is drinking water, I am running a stock spark arrestor and tubes on my hood drains are routed away from the intake. Single 44 on a 760 GroupK Hammer 61x/61x
 
M

mn_reeds

Location
MN
Any chance of an exhaust leak? Might not notice it normally but when you can't get free flowing fresh air it starts pulling exhaust causing the bog.

Also saw another thread awhile back that said needle/seat leaking flooding the carb or else being too rich and leaning down might help.
 
brapperdoodle

brapperdoodle

Location
Asheville, NC
I don't believe I have an exhaust leak, but that is a good spot to check.

In the last month, my ski has gotten harder and harder to restart after letting it sit for 15 minutes or so. Super blubbery, you have to hold the throttle open at least half way or it will die. Big cloud of smoke too. Plus it still has so much soot from the exhaust building up on the tail pipe. The ski rips though! No weird hesitation or any other issues, just rips.
 
brapperdoodle

brapperdoodle

Location
Asheville, NC
I just had a thought, I broke the primer off my dash recently while riding. If this primer were pulled out and broken off, could pressure from the tank be causing fuel to dribble through the primer line into the carb???
 
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
When it bogs, how long does it take to get going again. I would say air loss. Is the hood modified any? Or your hood is leaking at the hood seal and it is sucking in water.
 
brapperdoodle

brapperdoodle

Location
Asheville, NC
It takes 3-5 seconds after surfacing to come back to life, it stays running but has no power. I never modified my hood, it is stock. It could absolutely be getting water through the hood seal, It seems like the SN hood seal design is kinda weak...
 
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
make you a splash guard with some turf. Glue to side of hood lip area sticking up a few inches, this way it will catch any water, you could also glue a strip to the inside of the hood then another strip of turf to hang down past the hood seal area.
 
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