repairing PROK (junk) FA's

[WILKEY]

1. A/M filters offer better sand filtration.
2. Better overall air flow CFM.
3. Lighter than the stock air box.
4. No snorkel tube box for rats to build a nest.
5. They just look way cooler than stock.

This is hilarious. who plans on riding in sand?
lighter hahahah come on what 2 oz maybe
if ya got rats move out the city, or stuff a rag in there iif your ski is a trailer onament
take not having to deal with all the prok drama for the looks haha


BUT being able to adjust is a very nice reason to run them

not bashing u zero just sayin homie

 

[OCD Solutions]

I have run proks on the last 6 skis I built and have only had the inside perforated ring bust up on one unit out of the 12. The only reason it busted was due to contact with the hood liner ...not exactly the fault of the filter itself. I remedied the problem by replacing the tall Riva adapters with a low profile adapters and i haven't had an issue since.

I've been holding onto a stock F/A assembly that I will install if I ever have an issue with the Proks but so far i just don't see the need.

 

[#ZERO]

This is hilarious. who plans on riding in sand?
lighter hahahah come on what 2 oz maybe
if ya got rats move out the city, or stuff a rag in there iif your ski is a trailer onament
take not having to deal with all the prok drama for the looks haha


BUT being able to adjust is a very nice reason to run them

not bashing u zero just sayin homie

Sand filtration is a big problem with jet-skis especially if you ride in the surf and it can damage internal engine components.

The stock sj air box may be around a pound or two lighter if you consider the rubber tube and air box assembly.

Yep.. easier access for screw adjustments would be another benefit: just added it to the list.

1. A/M filters offer better sand filtration.
2. Better overall air flow CFM.
3. Lighter than the stock air box.
4. No snorkel tube box for rats to build a nest.
5. They just look way cooler than stock.
6. Easier to adjust carb screw settings.

Pro-k's suck ballz. Ive got 6 of them in a drawer, all falling apart. In a pinch I drilled 3" sheet rock screws through to cone into the airfilters element. Worked for about a month until i got some tau ceti's

How well would the Tau Ceti tornado series filters hold up?

They appear to be similar in design to the Prok filters with the clear center cone section.

 

[restosud]

nice filters those tornados.i see that the air is turning clockwise according to the spires.do you think thay would still work down under where things rotate the other way?:dunce:
also,i think my engine makes more power if the air spirals the other way.do we have a choice?:wall:

 

[#ZERO]

I'm sure it's just another gimmick to sell new filters but it might help with reinforcement.

 

[BombThreat]

Sand filtration is a big problem with jet-skis especially if you ride in the surf and it can damage internal engine components.

The stock sj air box may be around a pound or two lighter if you consider the rubber tube and air box assembly.

Yep.. easier access for screw adjustments would be another benefit: just added it to the list.

1. A/M filters offer better sand filtration.
2. Better overall air flow CFM.
3. Lighter than the stock air box.
4. No snorkel tube box for rats to build a nest.
5. They just look way cooler than stock.
6. Easier to adjust carb screw settings.



How well would the Tau Ceti tornado series filters hold up?

They appear to be similar in design to the Prok filters with the clear center cone section.

They look cool but ive got what I guess to be the old style with just the metal cap on top.

 

[#ZERO]

Unlike the Prok's which are all rubber, the top on the Tau Ceti is anodized aluminum and they come in silver too.

 

[GIL]

Your ski is upside down and idling and taking on water in the engine compartment like there is no tomorrow,
you run a oem flame arrestor that is directing that water directly to the throats of your carbs and holds 1+ liters of water,
you roll ski over and the liter of water in the oem now goes right down the throats of your carbs,
---------------------------------------------OR---------------------------------------------------------------------
you run Porks, Tornados and the cone diverts water away from the throats of the carbs.

I will keep running Proks and replace em as necc (but so far I have been real lucky).

 

[Big Kahuna]

the K&N 42RK filter '' rubber top'' cost me my top end , they were 3 years old '' 4 max '' . My eng shook them to pieces, That was a $400 mistake ! Im going back to stock Fa's with risers to clear the ada head . so I believe AM Fa's do have a service life , and it would be 2 years if I was to use them ever again

So when your wrist pin bearings let are you going to change to a different brand of pistons. Parts on ski's only have X number of hours before they let go. Just part of it.

The only thing I can think of is that the stock F/A on dual carb motors makes it hard to reach the carb adjusters - but even so, I don't understand why so many people go with aftermarket filters.

Stock dual filters will not fit on AM manifolds unless the spacing is the same and I do not know of one that is the same. The single OEM's are a bitch to tune, they are hard to get to. You can take off the top and get to the carbs but you are skewing your air intake trying to tune this way.....

Flame arrestors are kinda like riding shoes, they are only going to hold up for so long.

 

[Big Kahuna]

the K&N 42RK filter '' rubber top'' cost me my top end , they were 3 years old '' 4 max '' . My eng shook them to pieces, That was a $400 mistake ! Im going back to stock Fa's with risers to clear the ada head . so I believe AM Fa's do have a service life , and it would be 2 years if I was to use them ever again

another thing, preventative maintenance and inspection may have prevented this. before every ride, take the time to go over everything. Hose clamps can come loose, linkages on dual carbs can get out of sync. Bolts can come loose............

I have not checked things out and had problems and I have checked things out and found things that could have caused problems.

 

[WILKEY]

those look like they could be worth it if they hold up

 

[djkorn1]

Ocean Pro Vortex were the best. Do they still make them? Unbreakable. Once my carbs are not broken (One threaded area broke off), I will probably put them back on. Right now I am running a stocker, (holds on with 3 bolts)

 

[Dustin Mustangs]

Your ski is upside down and idling and taking on water in the engine compartment like there is no tomorrow,
you run a oem flame arrestor that is directing that water directly to the throats of your carbs and holds 1+ liters of water,
you roll ski over and the liter of water in the oem now goes right down the throats of your carbs,
---------------------------------------------OR---------------------------------------------------------------------
you run Porks, Tornados and the cone diverts water away from the throats of the carbs.

I will keep running Proks and replace em as necc (but so far I have been real lucky).

Mr Gil, If the water level in your upside down engine compartment is high enough to get into a stock F/A, your proks would be completely submerged. Unless those things are magic I recon you'd be effed either way.

 

[Pablo]

now that I think about it, those old ocean pro's prolly are the "bees knees." metal on top and bottom and bolted together. I had a
SN with one of those on it and didn't even think to snake it off there before I sold it. Woulda, coulda, shoulda. Good point there DJ. I'm gonna have to keep my eyes peeled for those.

Ocean Pro Vortex were the best. Do they still make them? Unbreakable. Once my carbs are not broken (One threaded area broke off), I will probably put them back on. Right now I am running a stocker, (holds on with 3 bolts)

 

[Pablo]

looky, looky....too big for my 44's, but if someone's running 46's here's the deal (2 listed on eba

http://cgi.ebay.com/ebaymotors/Jet-...20640603760QQptZPersonalQ5fWatercraftQ5fParts

 

[chriselmore_1]

i have an op fa id trade for a nice stock fa