Seadoo Purchase - RXdi confusion.

[kaspermm]

Hello guys!

I am lokking to buy a seadoo, and think i found a ok deal.

but there are some things that confuses me about this particular Seadoo.

This is what the seller posts in the ad:


Bombardier Seadoo RX-DI jetski compressor

Hi, this is a jet ski Seadoo RX-DI sold with brand new engine including compressor (August 2011, built by a specialist workshop)!

The engine has a 2 year warranty and has only 8 hours of operation down. (Invoice August 2011)

The engine has been run optimally. With the installation of the new engine, the same was done a great service and replaced the jet pump. !

The jet is therefore MINT! - Well maintained -

Engine: Rotax direct injection RAVE exhaust with air compressor -
8 hours (engine and jet pump) -
Year 2002 -
2 seats -

The jet is in excellent condition (everything was done by a specialist workshop and for all, there are bills including warranty)
additional work \ new parts: - New service! - New battery - Change oil, oil filter, fuel filter, fuel pump, stainless steel impeller Solas, all seals = NEW

The jet is sold with trailer!

Later in a PM he wrote me:

the engine is up to the base from scratch.
All parts are original.
These engines have a 50cc compressor.
Original 135 hp, supercharged by the new engine and it now has about 155 hp. (1000 cc)
The jet has no damage or defects. (yes, everything is new)
Pendant is 100km / h but no time for approval.
The CE has JetSki approval.
I have received from my parents a RXP.
The JetSki Top-Speed 100 - 110 km / h



SO my question is, whats with the compressor?

it my understanding that the RXDI, is born with a compressor of some kind right?

but this guys saids its give 20 more hp, and a 50cc increase? :leaving:

hope some of you guys can help me clarify this.. so i can buy it with out hesitation, and become a seadoo owner, and become a proper member of this great forum!

can't wait to hear your thoughts on this.

thank you!


kind regards Kasper.

 

[ocod]

Welcome to the forum.... Don't get your spirits down just yet. You might have a good bike. If you look on the back, right hand side of your hull, you should find the hull number. The last 2 digits are the year model. But, it should be the 2003. In 2004, they went to the RXP model.

When you take this ski out, you'll know if you got a good one or not. If this thing runs right, it'll scream like a banshee.... I've been told, a good running 951cc, direct injected engine is a hot runner. It's just that there have been so many members come in that suffered major problems with the air compressor.

The injection system in these are two part. First, you have the fuel delivered by the fuel rail split seconds before it's being charged by high pressure air to inject it into the cylinders. The biggest problems with them is troubleshooting. The system is so complex that you might find yourself replacing several things before finding the problem.

But, don't be worried about it till you ride it........:cheers:

Sounds like he pretty much got it right.

It's just so complicated that when something starts to weaken on it, you will spend big bucks till you find the problem. Or, using the shop manual, spend days trying to trouble shoot.

Like 96seadooxpBC said, if you have one that is running right, it's a screamer. But, if you have one that's been pasted together by someone, your liable to find yourself replacing a lot of stuff before you get it right.

There are two different injection systems that Rotax uses. The RFI (rotax fuel injected) system, which is an injection system that basically has nothing but the fuel rail, fuel pump, and electronic system that works it all. The DI (direct orbital injection) is on the high pressure side. The fuel pump on this set up cannot overcome the compression of the cylinder, so it's got the added compressor that works in unison with the fuel pump and electronics.

So you see, it's the DI system we're talking about. Not the ski model, like XP, RX, GTX, ... or any of the other skis running the DI motor. It's the system.

I hope this helps you understand it a bit better. But a test ride is paramount before you pass the money. I would not allow this dealer to sell this with the 3 month warranty. The reason is because if you do have a problem, he'll want to try and fix it. This thing could be in the shop for 6 months before they finally find a fix for it...........:cheers:

walk away is usually the case w/the DI.

Find a carburetor model GSX iirc or a XP with 800.

Heres the thread
http://www.seadooforum.com/showthread.php?25465-Seadoo-RX-di