98 sportster 1800 top speed

[Chubbysdad]

Just curious as to what the top speed on a calm lake would be? I took mine out last weekend and we only could get it to about 45. Just replaced the wear rings today and didn't get to try it out. Should I gain a bit?

 

[timmyboy76]

Yes,...bad wear ring will cause water to move around the impellor instead of thru it, causing less thrust

 

[Chubbysdad]

I saw the same boat on ebay and he is advertising 60mph. If that is the case, there is something wrong with mine.

 

[Chubbysdad]

well you seadoo people know your stuff. I was told it would make a difference changing the wear rings. Took it out on a small lake today and it was 10-12mph faster peaking out at about 56mph compared to 40-44 before changing the wear rings.
thanks guys.

 

[Elite6]

Wow! 10-12MPH difference from wear rings?? Are stock wear rings the only option? Anyone got a picture of where to find the wear rings? Under the boat? In the engine compartment?

 

[timmyboy76]

wear ring...

Elite6....
Wear ring is around the impellor, inside the pump. There should be no more than 1mm of space between the impellor(leading edge of blade) and what looks like the inner housing of the pump, thats the ring...also no scuffs or damages to it

 

[Chubbysdad]

these were the first time they were changed and its a 98. My brother didn't use it that much but enough. There were actually pieces missing lol.. They best 100.00 I ever spent on that boat.

 

[brniel]

Is it fairly simple to replace the wear rings yourself?

 

[timmyboy76]

Is it fairly simple to replace the wear rings yourself?

yah, you have to cut the bad ring w/ sawsall, some kind of saw, but dont hit the housing itself, or, read where can "walk" flathead screwdriver around and eventually pop ur out.
It can be done w/ impellor left in housing, just less room to work, or get impellor removal tool for 25buks, and go that route.
But doin urself, save ton-a-buks, order rings from this site, and get at it...

 

[Sailfish]

wear rings

can you do it with the pump still on the boat???? i really dont want to pull two pumps......

 

[timmyboy76]

can you do it with the pump still on the boat???? i really dont want to pull two pumps......

Sorry stud, wear ring is located inside back of pump assy, around the impellor

 

[brniel]

yah, you have to cut the bad ring w/ sawsall, some kind of saw, but dont hit the housing itself, or, read where can "walk" flathead screwdriver around and eventually pop ur out.
It can be done w/ impellor left in housing, just less room to work, or get impellor removal tool for 25buks, and go that route.
But doin urself, save ton-a-buks, order rings from this site, and get at it...

Thanks, I'll give it a try

 

[swill777]

So the premium membership on here lets you view manuals/instructions that tell you how to do stuff like this?

 

[Jim P.]

Can you guys estimate what is a reasonable price to have impellor oil changed on 1998 sporster twin 110 engines. Thanks

 

[Jared]

Just wondering..... do you have the stock seadoo impellers or are they aftermarket? I am changing the wear rings on my sporster 1800 and am thinking of switching back to the stock set up as far as impellers go. I too am only maxing out at around 42-43mph. It would be awesome to get an extra 10mph out of her!