What you need to know about Polaris 650 750 780 785's

[K447]

Hello, looking for some help with my 94 Polaris 750.

In the past I have had some trouble starting the ski but it always starts up eventually, it is 20+ years old, anyway until it really warms up I cant run it wide open without it almost dying...have to kinda ease into it.

After running the ski for 5-10 minutes it works out the issue and accelerates fine. UNTIL the last time I put it in....now when I finally get it started it never seems to warm up and when I take my time and slowly work the RPM's up it never gets up to a speed that matches the RPMs.

Its as if the water intake is clogged...but it isnt...I took it out of the water and had a good look and its clean all the way through. The only thing difference that I can tell is there seems to be more noise and vibration from the shaft...perhaps there is bad bearing in the shaft?

If you have not done so in recent times, I suggest removing the jet pump and inspecting the jet pump/impeller bearings.

Your 1994 model should have the 148mm modular jet pump.

See my signature links for info info and video on removing the jet pump and checking it.

what is the service history on this machine?
Have the carburetors been internally cleaned and rebuilt?
Has the fuel system been refurbished? New fuel hoses, new fuel filter, inspect inside the fuel tank?

Check cylinder compression. All spark plugs out, throttle held wide open, strong battery.

[Mockingee]

If it truly revs up but doesn't speed up maybe the splines are stripped on the driveshaft or inside the coupler or the impeller. I'm assuming a ski that year wouldn't have a rubber bonded coupler. Either way the pump needs to come off as K447 already suggested.

[[email protected]]

I'm looking for carb settings for 1993 Polaris 750 . I have a 1994 but I found a 1993 & needing to know if jet settings are different. can you help?

[trigger1972]

Cross Posted:

I have 2 1995 Polaris SL 650s. One of them is draining my battery everytime. It is making an alarm sound when I'm on it in the water when tipping side to side. One side more than the other. Full of gas and oil. This started the middle of last season. I put it on the lift after use and come back after the next weekend and the battery is dead.

Brand new batteries this year and came back the next weekend and the battery is dead. Only thing I can come up with is the alarm signal seems like its an anti tipping alarm and it randomly is going off draining the battery. Won't do it when I'm dry docked.

Ski runs awesome other than having to charge battery before every weekend use. As you know its a big pain to unhook the battery every time.

Hoping for some assistance in finding this alarm and what I can unhook that won't effect the machine. I've heard it could be a low oil alarm but its full of oil but not sure where that wire is or if would harm the machine to unhook it.

[Caleral14]

What's a good carb kit for the 650 that comes with needles and seats for a good price ? There is soo many different makes and knockoffs on ebay so I'm wondering what your guys experience is with them or others! Thanks!

[K447]

What's a good carb kit for the 650 that comes with needles and seats ... ? ....

Welcome

Buy the genuine Polaris Mikuni OEM carb rebuilt kits from www.watcon.com

They can supply the parts you need.

Aftermarket rebuild kits are not worth the hassle.

And click here

http://polarispwcknowledge.shorturl.com/first-things-to-do

[xlint89]

Correct ^^^^

John has the best complete kits available.

And thank you for bumping this thread to the top as there been many questions asked lately that can be answered with this

[bigP1164]

Okay, I am a tech tard. So please be easy on me. I clearly don't know how to post questions or where to do it. I read through how to do it and this is the best i can figure it out. I so appreciated all the info about things you need to know about my 94' polaris SLT 750. I am going through the the list and following each step. I am about to rebuild the Mikuni carbs and install a triple fuel pump. I have the maintenance book so i have all the specs on high speed screw adjustments for each carb. Does that change since i am putting on a triple fuel pump? do i adjust all carbs to the specs for the Mag carb? I looked for the answer before I posted. any help would be great.

[Rowan]

I am 15 years old and my uncle is going to help me bye my first jet ski I live In Indiana and I would like to know a good old first ski I can get

[32DegH2O]

I am 15 years old and my uncle is going to help me bye my first jet ski I live In Indiana and I would like to know a good old first ski I can get

As for Polaris skis...you have 2 choices of engine types to choose from. 1993-1995 they used a "Fuji" blue painted engine which are good but they have their drawbacks...then there's 1996-2002 and they used a "Domestic" black and red painted engines which are solid and reliable. I would stay with the 1996-2002 model skis. With the "Domestic" engines, you have the choice of a two-cylinder or three-cylinder engine and you have the choice of ski size...a two seater or three seater. Alot of your decision depends on what you want out of the ski. Do you want something for playing and zipping around on (speed) or do you want something that's fun but is good for cruising around and can handle rougher water conditions? Do you want to be able to pull a tube or skier? Give us some more feedback and then we can recommend some models.

[Rowan]

I want speed

[32DegH2O]

I want speed

Ok...I would look for the following:
1997 SL1050 - 1050cc engine
1998 SLXH - 1050cc engine
1999 SLX - 1050cc engine
2000-2001 SLX - 1200cc engine (fastest two-seater stock ski ever made to date)
2000-2001 Pro1200 - 1200cc engine (most maneuverable stock ski...around 1-2mph slower than SLX but better in rougher water)
These are all 2 seaters and even though they have the power to pull something behind them, they are small and light and not designed for pulling things...they can be pulled sideways to easily.

[Paradise0]

Looking to match cdi with correct stator on my 96 fuji. I’ve got a 78w-96 stator an cdi’s with 78w-96,96c,an 96b. Are the lettered ones do I match stator with no letter?

[xlint89]

Generally any of them will pair up with your magneto.

What ski do you have?

The difference in CDI's is usually timing related. The SLT will use less overall timing (I think 18*) And a SL or SLX will use 24*. That should be what the letters are signifying.

[Kmslt750]

I have a 1995 Polaris slt750 with the newer fuel sender. ( Picture attached) I'm having a really hard time finding a replacement float at a reasonable price. (Under $150 CAD including shipping) I was wondering if you can use some sort of universal sending unit?