26 replies to this topic

[sdkirby]

Just bought a 95 Speedster with the dual 85hp motors. The boat is in pretty rough shape and needs some TLC. I am new to the whole jet boat world, so please bare with me.

Where can I get a new shock for the rear ratch?
Is it safe to start the motors out of water?
Are the round moon shaped things on the outlet supposed to have slop in them?
What is the proper starting precedure?
For some reason, I can't start the engines without holding the switch to point at the two batteries. Is this normal?
What is a good oil to use?
What octane fual should be used?
Anything you guys think I should look at before taking it to the lake?

Thanks in advance!

Sean

[tiggerman]

Well, first off, welcome to the board!! Hope we are all able to help a little.
You have basically the same boat as mine, except I have the 1997 Speedster.
Here is a site that sells OEM parts for your Doo:
http://216.37.204.20...m/seadoo_JB.asp
They have online microfiche that will show you exploded views of your boat.
Next, go to e-bay, doo a search for seadoo- there you will find owners manuals and hopefully shop manuals for your boat. READ them BOTH once you have them!!! The seller I got my manual from is fzr100.
Your answers in order:
1. See above
2. Yes- provided you have your garden hose attached to the flush fitting on each side under the back hatch. Be sure to crank the engine FIRST, then turn on the hose. When you are done, turn OFF the water, shut the engine down. You should be able to run the engine as long as you want like this, I can't because I have a different driveshaft seal than you. While I'm on that subject, the seals you have require you to grease them periodically to keep the water out of the bearing, and keep the bearing from seizing and ruining your day. If you look down into the engine compartment, you will see where the shafts go thru these carriers and thru the hull of the boat. There is a grease fitting on each one. If you have a grease gun, give each one a couple pumps SLOWLY. If the boat is in as bad shape as you say, this is one area that really needs your attention.
If you run the engines out of the water, they are going to idle kinda high- that's normal. Once it is in the water, they will idle around 1500 RPM.
3. The moon shaped things are the reverse gates. They will feel sloppy, yes. As long as the pivot bolts on each side are tight, they aren't going to come off. Might as well buy some medium strength Loctite ( I use blue) and take them out, Loctite them, and put them back. The bolt requires a 7mm allen wrench.
4. I don't know about proper, but I always check my injector pump resevoir to make sure it is full of 2 stroke oil before the boat leaves the trailer. Once in the water, hold the choke up, crank the engine. Only one at a time will start. Once started, it's pretty much like a weedeater. You may have to choke it again if it dies the first time. You shouldn't have to use any throttle to start the engine. Rinse, repeat for the other engine. Which brings me to ....
5. Your boat has 2 batteries, mine only one. I really can't answer that question. There is a post on another site with info on how to convert to one battery. I will find it.
6. Thats a tough one, and has been thru much debate on which oil is best. If the previous owner used Bombardier Rotax oil, stick with it. Whatever he used, try to use the same. Oils like Quicksilver are not really formulated for the Rotax engine, but they do work. This is entirely my opinion. Walmart used to carry the Seadoo oil all the time, but I haven't seen it lately.
7. Gas-- use what you can afford. I personally use 87 octane, one reason is it's cheaper. Gas here in AL is going on 1.70 USD a gallon. I know it's more expensive in other states.
8. Whew!! The most important thing I can think of is the last part of number 2 above. Make sure the driveshafts turn before you even leave to go. GREASE them before you ever leave. If while you are greasing the carriers you see nasty stuff come out of the seals, that's enough. I personally would pull the jetpumps off and pull the driveshafts and visually inspect these carriers ( seals and bearings) to make sure they have been maintained properly. Chances are they have had a little water in them. Thats just me though. Seadoo stopped using these carriers in 1996, simply because people had failed to properly maintain them and the bearings seized on the driveshafts. When that happens, the carrier starts to spin, and the rubber hose they are clamped into will tear- this is the bad part, because that just opened up a rather large hole for water to get in your boat and really ruin your day.
Other than that, Just make sure all hoses are intact and not rotten. Has this boat been sitting? If its really in bad shape, have someone look at it that knows a little about Seadoo boats. Oh yeah, MAKE SURE YOU PUT THE DRAIN PLUG IN BEFORE YOU BACK OFF THE TRAILER!!!!
If I haven't terrified you that something bad is going to happen with your driveshafts, let me try a little harder. Just kidding. Take it out, take it easy at first-
get the feel of the boat. Remember that jetboats don't handle the same as regular boats. Jetboats steer differently than a boat with an I/O motor, and remember that IF IT AINT RUNNIN, YOU AINT STEERIN!!! Just take it easy and get the feel of the steering, go slow around the dock and don't let anyone rush you. Take your time, and you will be DOO'ing in no time!!!!

[sdkirby]

I already ordered the user's manual from the same guy off of ebay. I will deffinately check the shafts soon. I will be looking over it some more tomorrow and may have some more questions for you. Thanks for you help!

Sean

[tiggerman]

I already ordered the user's manual from the same guy off of ebay. I will deffinately check the shafts soon. I will be looking over it some more tomorrow and may have some more questions for you. Thanks for you help!

Sean

Anytime! As you can tell, I LOVE to type.....

[sdkirby]

How much difference is the 1996 speedster and the 1995? I can't find a service manual for a 95 anywhere!

Thanks,
Sean

[tiggerman]

Everything looks similar except the driveline. The jet pumps mount differently as well. The 96 has separate pump "shoes" to mount to whereas the 95 looks to have both jetpumps mounting to a common plate. Did you e-mail fzr100 and ask if he has a service manual for a 95? He usually has them all.

[sdkirby]

Yes, but he only has from 96 on. The dealer wants $100, and that is just too much for my blood. Any suggections?

[tiggerman]

Unless you can find someone with the same year as you who has a manual, I don't have any other suggestions.

[Kevin Leclair]

I can't find a service manual for a 95 anywhere!

http://cgi.ebay.com/...item=2469659022

[tiggerman]

I can't find a service manual for a 95 anywhere!

http://cgi.ebay.com/...item=2469659022

It's the service manual he is actually looking for.....

[tiggerman]

This is all I can find-
http://www.parkeryam...TS&Category=423
It appears to be a parts catalog, who knows what kind of information besides parts it might have in it.

[sdkirby]

Thanks for the help guys. I may end up getting one from the dealer.

Well, I am going to take the boat to the lake tomorrow for a test run. Wish me luck.

I am going to go ahead and change the plugs before I go. Is there crankcase oil in these babies? Should I change it, and how?

[tiggerman]

Changing the plugs is a good idea. I keep a spare set on the boat just because.
There is no crankcase oil on the 2 stroke engines, it has oil injection. Open the rear hatch and look for the filler cap. Take the cover out and look in the engine compartment to see if you have plenty. The tank is on the port side mounted high in the engine compartment. The big filler cap is on that side too, under the rear hatch.

[sdkirby]

Ok, I found this, but how would I go about printing this out on paper? The library maybe?

http://www.worldofpo.../295500410.html

[tiggerman]

Possibly, if the library would allow you to bring your own fiche to be viewed on their reader. Good idea! Makes for a cheap manual. Read my post in General Discussion for ordering information about this particular vendor.

Better yet, I found microfiche readers on eBay CHEAP!!

[sdkirby]

Well, Brought the boat to my brothers shop to fire it up and change the plugs. The drivers side motor wouldn't start and come to discover the carb is seized. I am pretty upset at the fact because the throttle shaft and plate we need isnt sold as a spare part. I have to buy the whole assembly for $600!!!!

Somehow the shaft bent and the screws holding the throttle blade also broke trying to loosen them.

Any suggestions?

[tiggerman]

Sorry to hear that man. Try to figure out the model and manufacturer of your carburetor. Look around on eBay, or try www.denniskirk.com and look through the watercraft carburetors. I'll look myself and try to help out all I can.
One other place to look- www.seadoosource.com This guy has used parts as well. He also is selling on eBay now.

FOUND SOMETHING!!!!!! http://www.jetskimec...duct=parts_Fuel

Scroll down through the list till you find the linkage and throttle plate kits. They start at 32 bucks!!!! Just figure which carb you have and bingo!!!

[sdkirby]

Thanks for the info! I found a local dealer that had the same valve kit in stock. Upon arriving at the place I discovered that the shafts are two long and will not work. Mikuni does not sell the short shafts by them selves, so they only way to get them is to buy the whole carb set. $600!

Also, I found out my motors are only 650s, not the 720s. I did get the driver side motor running after swapping the carb off the passenger motor, but none of the gauges work and the battery cables are trashed.

I am not a happy camper right now. I am going to try to either get a refund on the boat, or get the seller to pay for the parts. This is what I was supposed to be getting: http://cgi.ebay.com/...P...RK:MEBWN:IT

Obviously, the motors do not "run excellent".

I will keep you guys updated.

[tiggerman]

You're right it OBVIOUSLY does not run excellent- I'm sure eBay will try to help you out on this one. How did you pay? The facts are the seller misrepresented his item. I sell everyday on eBay (appliances and parts) and I know better to sell someone a refrigerator that's used and claim it's new. Good luck man and let us know how it goes.

[sdkirby]

Do you know what HP rating the 650 motors are? 80hp?

Thanks.