Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
FPP made the triples, Also Bo Dupriest and I think Coffmans had made some as well. The Freeride Pipes were made by FPP as well.
Carburetor energy ports
- Thread starter Quinc
- Start date
Quinc
Buy a Superjet
- Location
- California
Maybe it creates an additional circuit so you can tune the progression holes, or some portion of the progression holes, separately from the normal low speed jet and screw. I could see that being potentially useful maybe (?) Still no magic about "fuel vaporization" involved, but could actually do something useful maybe.
Quinc
Buy a Superjet
- Location
- California
That jet is connecting this chamber to....something. Who knows where. It appears to be coming from the same chamber as the high speed jet though, on the same side of the check valve, so it would be weird for that to be going to the "low speed" side of the carb in the progression holes like I originally guessed, so...I dunno. Magic. It definitely looks like they are doing some sort of re-arranging of the carb circuits anyway.
Quinc
Buy a Superjet
- Location
- California
The Mikuni BN44 had a 3rd circuit/tuning screw. Maybe similiar to that?
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
That was just an idle adjustment.
- Location
- Lake Havasu City, AZ USA
Knights of the round pump! 
- Location
- South Africa
Those 'ports' are on the Spigot/outlet side of the carb to dampen the reversion pulse coming back off the reeds when they close. A stock carb setup can add fuel to a volume of air 3 times at certain rpm - 1. Initial intake gulp of air picks up fuel from LS and HS circuits - 2. reversion pulse pushes fuel out carb picking up fuel again - 3. when the mixture comes in again through carbs, fuel is added again. Certain boosters, like the Novi, prevent fuel being taken up from HS circuit on the on stage 2 reversion pulse
- Location
- the jetski grave yard
Coffman only made triple pipes for the stxr/ultra 150. when I bought out their remaining inventory, I got a few sets of them. : )=
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
thats right. scratch that.
- Location
- Great North West
I’m the owner of the setup. I was just informed of this thread so I thought I’d give you guys all the information I have. I bought a clean Blaster 1 this last summer from the original owner. The people I bought it from work at a Yamaha dealer in Bozeman Montana. When they bought the ski new back in 94’ they put a pipe on it, did a mild port job, and had this intake/carb work done. Impeller, scoop grate, ride plate etc. It was the wife’s boat to race local and club races. The boat was super clean for being 22 years old. I Let my wife ride it the rest of the summer. It was a good running ski. I pulled the the motor out this winter to do a triple conversion. I put the setup up for sale here on the X. i don’t know if anyone saw it. Here is the link.
http://www.x-h2o.com/index.php?thre...mikuni-ocean-pro-boyesen.194230/#post-2021018
http://www.x-h2o.com/index.php?thre...mikuni-ocean-pro-boyesen.194230/#post-2021018
- Location
- Great North West
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Spigot mounts are great if your racing and need to do alot of jetting changes........ Makes for quick carb removal.
They flew!! I used hundreds of the boswell modified carbs and they definitely worked well. I wish that they were still in business.