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1995 seadoo speedster twin

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ok thanks jesse I will check with them when im ready-going to remove carbs from right engine today and clean and sync and check them out.after im going to go through the hole fuel system on that engine hose by hose.
 
ok thanks jesse I will check with them when im ready-going to remove carbs from right engine today and clean and sync and check them out.after im going to go through the hole fuel system on that engine hose by hose.

When going through the fuel system might want to pay special attention to the fuel selector valve and the fuel/water separator (filter).
The O ring on the separator must seal good or you will suck air and not fuel.
The rubber grommet inside the selector valve becomes worn and will not allow enough fuel through. I usually just replace them on my projects. http://www.parkeryamaha.com/seadoofuelvalve275500098.aspx

Good luck!
 
When going through the fuel system might want to pay special attention to the fuel selector valve and the fuel/water separator (filter).
The O ring on the separator must seal good or you will suck air and not fuel.
The rubber grommet inside the selector valve becomes worn and will not allow enough fuel through. I usually just replace them on my projects. http://www.parkeryamaha.com/seadoofuelvalve275500098.aspx

Good luck!

PRP would take on a customer repair like this, but it would need an open ended ticket to be done right. You could cut corners on aesthetics, but not running gear and the wiring... boat fires are no fun, and I`ve seen jets boats like this leaking gas into the bilge and into the sea water while the owner is cranking the crap out of it to get it started... you def don`t want any BOOM...
This is one of those projects that the OP is better off rebuilding himself to save labor costs if applicable. already in 1500 eyeballs deep.

IMHO, I would get rid of all that old stuff and build a new fuel system from the fuel pick up to the carbs... using simple filters and move onto the next issue...

Give Jeremy a call at SBT, tell him I sent ya, and see what parts he has that you need.

Hard obsolete parts, like tanks, control sticks etec you have to ask Minne, or 99spxxx
 
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no base gaskets under the carbs that might be why it was reving up high-lol it doesent look like anybody took the housing off under the carbs.i see the 2 oil injection lines in the housing under the carbs they are pluged good with small brass plugs.
I have synced the main buterflys now im working on the choke the screw was missing that link the choke butterflys together for adjustment should have this fixed after I find a spring to put on the screw.
 
no base gaskets under the carbs that might be why it was reving up high-lol it doesent look like anybody took the housing off under the carbs.i see the 2 oil injection lines in the housing under the carbs they are pluged good with small brass plugs.
I have synced the main buterflys now im working on the choke the screw was missing that link the choke butterflys together for adjustment should have this fixed after I find a spring to put on the screw.


take some pics...

you can remove the lines from the nipples and install caps.

you can also find bolts/nuts/washers, fuel line, clamps and zip ties here :http://www.mcmaster.com/#

why are some parts green and some purple?

If you think the wiring is sound and just needs some TLC to tidy things up, I would pull the engines and re gasket/seal everything, with the exception of the cylinder base gaskets if they look to be sealed well. Then pressure test the engines and go from there.

gaskets and the time to reseal are well worth it and done cheaply, be in a rush to run and it can turn out fugly...

Have you considered pulling the heads to see what the cylinders look like, or do you have a bore scope?
 
yes I don't know why the different colors from 1 engine to the next-he gave me a spar engine that looks nice paintedup real pretty but he said it was the wrong engine for the boat so he bought a engine off ebay for around 900.00 and put it in he said the boat has the right engines in it now.
the wireing looks ok no burnt or fray wires its just going to need some attention and routed the right way.

I have decided to try to get the engines to atleast fire and idel for a few seconds to see if they can even seem to run right-I have heard both fireup when he was here and compression in both are ok.
I might endup pulling both engines I just need to see what I got here that is good
i do have a friend that has his own machine shop he bores all my cylinders for me so that is something on my mind

before i fire this engine i have to check the oil lines im thinking what he did is mixed the fuel in the tank and used this power steering reservoir for the lower end oiling-when i fired them they both did smoke so i know they where getting oil at that time.the one engine did fire but i put 2 stroke gas down the carb its not getting fuel haven't started on that engine yet.
 
yes I don't know why the different colors from 1 engine to the next-he gave me a spar engine that looks nice paintedup real pretty but he said it was the wrong engine for the boat so he bought a engine off ebay for around 900.00 and put it in he said the boat has the right engines in it now.
the wireing looks ok no burnt or fray wires its just going to need some attention and routed the right way.

I have decided to try to get the engines to atleast fire and idel for a few seconds to see if they can even seem to run right-I have heard both fireup when he was here and compression in both are ok.
I might endup pulling both engines I just need to see what I got here that is good
i do have a friend that has his own machine shop he bores all my cylinders for me so that is something on my mind

before i fire this engine i have to check the oil lines im thinking what he did is mixed the fuel in the tank and used this power steering reservoir for the lower end oiling-when i fired them they both did smoke so i know they where getting oil at that time.the one engine did fire but i put 2 stroke gas down the carb its not getting fuel haven't started on that engine yet.
if you already heard them run and compression is good, then trying that again is a step backwards, no? Look for any signs of excessive wear, pitting, detonation etc etc would be at the top of the list. The carbs work and getting it to run after you`ve gone thru the carbs and correct gaskets... OEM gaskets for the carbs have been the best way to go for that.

before you consider boring the jugs if necc, SBT has an exchange program with all the clearances worked out. new pistons pins and bearings, gaskets...

good luck, have fun...
 
yes the power steering tank was for the rotary valve. Really it doesnt need a tank, I just wrap it around the motor, put a tee on it to use as a filler, and some kind of cap.

There is no reason NOT to do the fuel lines and stuff, but the dreaded fuel line issue does NOT apply to the boats. Completely different line, when I did mine there was little to no green residue on the brass parts.
 
This is my first reply to this thread, and I admit I just skimmed the questions and answers. It appears to me that this boat has been converted to run on premix. When you run premix it's important that the rotary valve gear gets lubrication. The rotary gear is lubricated by drip lubrication and just runs through the cavity and back to the oil reservoir. I'll bet a dollar to a hole in a doughnut that the previous owner installed the power steering reservoir to provide lubrication to the rotary valve gear.

Lou
 
got the carbs cleaned and put back on but guess what been tracking down why I have no power to lanyard switch/start stop switches/netrual switch no power coming in either.
at the top of the fuse box I have found all these wires comeing out of that main board at the top and non are hot
yellow/red strip----start stop switchleft
yellow/red/green start stop right engine
black/yellow stip ----saftylanyard switch
red/white strip neutral switch supply
all dead coming out of the board I was thinking it might be a bad fuse but checked them all and all are good in the board
got the blower working
found a gray wire with a long black fuse link built into the wire power one side but gos dead on the other side so I need to fix that-this gos to bow light witch is mia.
 
got the carbs cleaned and put back on but guess what been tracking down why I have no power to lanyard switch/start stop switches/netrual switch no power coming in either.
at the top of the fuse box I have found all these wires comeing out of that main board at the top and non are hot
yellow/red strip----start stop switchleft
yellow/red/green start stop right engine
black/yellow stip ----saftylanyard switch
red/white strip neutral switch supply
all dead coming out of the board I was thinking it might be a bad fuse but checked them all and all are good in the board
got the blower working
found a gray wire with a long black fuse link built into the wire power one side but gos dead on the other side so I need to fix that-this gos to bow light witch is mia.

I feel your pain I bought the same boat you have except I paid 2,500 for it. It looked good and ran decent but I was to green to notice the problems lurking inside.20131020_153442.jpg

I took it out a few times and I could feel a difference in the starboard engine so I ran a compression test and got 135,145 so I decided to tear into it and I found these two beautiespiston2.jpg after that I tore into the bottom half and realized that the crank was shot along with the flywheel and stator,a chip came off the flywheel and destroyed the stator. So off for rebuild! The po left the engine bay a mess so I pulled bolth engines to clean it up a bit. long story short with tools two pump rebuilds and a new engine I think I'm out another 1,700 or so.

well good luck to you your not alone! but on a good note everyone on this forum will be happy to help I couldn't have done what I have so far without there help, and Pale riders build thread can give you some good inspiration reading it got me going!
 
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well I found the problem with the wireing after 4.5 hours of tracking wires down.it was a wire that the prevous owner ran to a toggle switch under the dash,it did not have no power to it so I pulled it out did not look like nothing was even hooked up to it.well I guess what he did was ran this wire for a ground for the lanyard switch its the ground for that and gos all the way to the battery.
right engine is running real smooth now after cleaning carbs and putting gaskets under them.
the other engine is next its not getting gas so I don't know what to expect on this one.
I went through the fuse box and put all new fuses in and they are all working perfect thank god that main board is good I looked at what they cost and just about passedout.
yes toolanddiemaker I have a feeling the next motor is going to be the one that needs some money put into it-your boat looks a lot better than mine you have a nice one.
one engine down one to go
 
well I found the problem with the wireing after 4.5 hours of tracking wires down.it was a wire that the prevous owner ran to a toggle switch under the dash,it did not have no power to it so I pulled it out did not look like nothing was even hooked up to it.well I guess what he did was ran this wire for a ground for the lanyard switch its the ground for that and gos all the way to the battery.
right engine is running real smooth now after cleaning carbs and putting gaskets under them.
the other engine is next its not getting gas so I don't know what to expect on this one.
I went through the fuse box and put all new fuses in and they are all working perfect thank god that main board is good I looked at what they cost and just about passedout.
yes toolanddiemaker I have a feeling the next motor is going to be the one that needs some money put into it-your boat looks a lot better than mine you have a nice one.
one engine down one to go

Thanks! I buffed it out polished and waxed it along with reparing a few nicks in the gelcoat it didnt realy look that nice when I bought it.Yep two engines double the trouble, sounds like you have a real mess on your hands I'm in the process of replacing all the full lines and cleaning out the filters and fuel system,carbs ect. You should prob do the same it might save you some trouble in the long run. There might be some crud clogging up your lines causing you not to get gas to that second engine. I know mine were a mess.
 
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yes your right im going to go through the carbs and im going to go through the selector valve and lines sunday.
after I get the engines going and the jet drives rebuilt,and all the electrical fixed I will be cleaning and buffing for a year by the looks of this thing lol

I love this thing to look like yours but right now im thinking im going to be lucky if it even floats lol
 
yes loodoo that is what he did im looking everywhere for a oil reservoir right now haven't comup with one yet-so what im going to do is switch the power steering one from moter to moter and only run 1 at a time till I get both hooked up right.
I have also been thinking about buying another power steering reservoir and making brackets to mount them for both engines,but I will try to find the right one for a couple weeks and see what happens.
 
yes loodoo that is what he did im looking everywhere for a oil reservoir right now haven't comup with one yet-so what im going to do is switch the power steering one from moter to moter and only run 1 at a time till I get both hooked up right.
I have also been thinking about buying another power steering reservoir and making brackets to mount them for both engines,but I will try to find the right one for a couple weeks and see what happens.

Killer454
Might give OSD parts a try:
http://osdparts.com/index.php?main_page=product_info&cPath=1&products_id=7502

Good luck getting the second motor running. No fuel could mean bad O ring on the filter, pulse line, carb diaphragm, plugged internal filter, fuel lines connected backwards and on and on, but some good places to start.
 
thanks jesse I will check with them and see
and thanks on the things to check that will help to im just hoping this engine runs right to it did have gas in the lines when I removed the line last night but not much.and I went over to the selector valve and foundout that it does not move as easy as the one for the other engine.
when I took the carbs off their where gaskets under these carbs atleast.and they seem to be in sync better than the other carb was so I will see-im thinking this motor may need some money put into it.
I know if I put alittle mixed gas down the carb it fires right up though so that is a good sign-I forgot what my compression was on this moter and lost that sheet I wrote it on I will have to go back in this thread and see this might be the engine that had less compression I cant remember.
thanks jesse
 
this next engine had real good compression that's a good sign great-their was one thing I wanted to ask I put everything back on the other engine and im having a hell of a time getting the top cover to go on the spark arrestor box (the lid that says seedoo)is their a trick to this.
I thought maybe I put the lower one on to tight but no it was fine I cant get this lid on for nothing-I have even tried both neither seems to fit right and they where on their when I got it.
 
eBay had a 2000 Speedster for $24.99. Maybe it will do what you need. There is a good picture of it.

44.jpg
 
yes I saw that one but it looks really small im going to see if I can find the oem first im looking on ebay everyday and emailing supplyers right now,they should all get back to me on Monday I hope.
I would like to have the oem so everything looks right in the engine bay it will be pre-mixing fuel though so I will only use it for lower oiling.
I just want everything to look nice and neat
 
ok guys I got both engines running real good,i was having a problem with this other engine running sounded like it was only running on 1 cylinder or not getting gas then I realized no gas was comeing out of the return side of the carbs.so I didn't now if I had a carb problem or fuel supply problem-so I switched carbs from the good running engine and put those carbs on the other.it fired right up and ideled down and ran fine,so now I knew it was my carbs tore them down again and found the short supply hose that connects each carb was blocked cleaned the abstruction in that short hose put back together both running real smooth.

now that I have both engines running real good im going to go ahead and tackle all the wireing problems,and get all the wireing looking good and neat.
I think I did ok on this trade at least both engines run good and I do have the rebuild kits for both jets and wear rings.

I have a engine he gave me with this boat that I don't need it is smaller I think it a 650 or 5 something not sure now I will look tomorrow its painted up real nice I have no use for it,its just in my way.i don't think they would paint it if it was no good but I don't know.
 
Congrats on getting them running. I'm sure times a good feeling.

I did not go back and reread all the posts. Are you familiar with the carbon seals on the shafts? Now that it is running you don't want to hurt those.
 
Congrats on getting them running. I'm sure times a good feeling.

I did not go back and reread all the posts. Are you familiar with the carbon seals on the shafts? Now that it is running you don't want to hurt those.
the real test is yet to come, the water test... good luck...
 
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