- Location
- South Florida
Empty your mailbox.
The Waternut Stunt hull build
- Thread starter Waternut
- Start date
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
I have been telling him to grease those muffler bearings.
Funnything, I just got my SJ put back together, getting ready to go test it in a few minutes. Cranked it up the other night. Rattle Rattle Rattle.......... Pipe is rotated inwards and hitting the side of the hull or bed plate!
SUPERTUNE
Race Gas Rules
- Location
- Clearwater Fl.
I didn't follow this build all the way, so my questions are: Did you use stock OEM SJ Yamaha rubber motor mounts or aftermarkets? Do you have kenny keepers?
I have found that both of these can cause vibration problems.
I have found that both of these can cause vibration problems.
Just realized I never responded to this. Yes I do have OEM motor mounts and yes I do have kenny keepers. I had both installed in my SN but when I bolted them up to this hull, I had to grind the kenny keepers down some. It's possible the kenny keepers are still rubbing at the base (bolt side) of the keeper. I didn't notice any additional gouges in the keepers when I pulled the motor last time but I wasn't specifically looking at them. Next time I pull the engine, I'll check the keepers and see if they're causing problems.
sjetrider
615 Freeriders are addicted to T1 madness.
- Location
- in the 615 (Nashville)
Are you using a special resin for this gas tank? Just curious. I know vinylester says its "fuel safe" but not so sure its FUEL PROOF???? Not sure about epoxy resin? Have you looked into that?
Most resins including the ones from us composites are fuel resistant. In the middle of last summer I was curious what would happen if I left gas in the hull so I put a piece of fiberglass in raw fuel for about 3 months. It wasn't brittle, soggy, or anything other than normal as far as I could tell. However, I'd read about plenty of older boats fuel tanks made of composite that were beginning to deteriorate after 15-20 years. I wasn't so concerned about that time frame but I figured for an extra $35 or so I would buy a quart of fuel tank sealant as added insurance. The sealant was originally designed for repairing fuel tanks with tiny pin holes in them. Once the sealant is in place, it doesn't matter what material you make the tank out of. Either way, that custom tank is on hold for now...lost motivation.
- Location
- South Florida
I rode it. It wants to be in the air. It will leap out of the water even without a wave to jump. John is crazy when he says it rides nose down. I think he was used to his shortened flatdeck hull which I could hardly even ride. He is running a regular length pole and steering and he cut his rideplate flush. I think it would be perfect (for me) with a shorter pole or a longer rideplate. Even so, I started getting used to it after a few minutes. It made his 701 seem like a monster. The wide tray takes some getting used to since you tend to overcompensate on the turns at first. Watching him ride it from a distance you can tell he is getting huge air and the ski never seems to sink when he lands, I guess because it is so light.
- Location
- South Florida
You're the man! That's what I'm talkin about.
Rode for a little while today. Even tried for a backflip. I'm not sure how far around I got but it felt a lot further around than I've ever gotten off big boat wakes and no trim. I didn't attempt a second try because I almost sunk the ski. The ski was upside down for 4-5 seconds while I regained a sense of where I was in the water. Turned the ski upright and the motor was sputtering and the nose was riding really low. First things first, I need to reroute those hood tubes to the bottom of the hull so it doesn't suck up so much water. Then I still need to add some flotation to it.
- Location
- Raleigh NC\Lake Jordan
my thoughts exactly abbout the hood! Just let me know how your going to keep those tubes upright
BruceSki
Formerly Motoman25
- Location
- Long Island
i want to see vid. I'd like to see the boat wave you are attempting this from.
l think l saw a pic of your hood with the hoses coming out at the rear.And then you routed them to the top(of the hood)? You going to just let them hang down?
No boat wake... my wake. I'll get video eventually but don't hold your breath.
Here is a picture of what the hood currently looks like. The plan is to take coat hangars and shape them in a way to support the hoses and bend them down.
Attachments
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
The only way that is going to work to where it does not dump water into the carbs is to have them pointing and going down to the bottom of the hull. There is a reason everybody else has a baffle system to help seperate the air and water. Also, the longer you make the tubes, the harder it is to get the air flow you need to supply your motor.
Ok I did this to the hood this morning but haven't really had a chance to post pics until now. I think this will work a lot better. The tubes are supported by coat hangars and a zip ties at each of the bends to keep everything located properly. There isn't a ton of room to drop the tubes in the engine bay but I was able to find a place on either side of the carb near the bottom of the hull.
Attachments
- Location
- Raleigh NC\Lake Jordan
looks good, you should test it out in shallow water.
- Location
- Cheney lake Kansas
huh????
you backflipped ?? what ????? more info , I dont understand your last post
you backflipped ?? what ????? more info , I dont understand your last post