92 sea doo xp problems

[hondagini41339]

I have a 92 sea doo xp 587 twin carb. i have tinkered with the carbs and seemed to have got it running but as everyone knows once you get it runing on land its a totally different story in the water. i plan on taking it to the local lake and tune the carbs a bit. any suggestions? i already did the most common thing and clean the carbs the best i could and replace the fuel lines. Is the oil injection system reliable on this model of ski? should i just block it off and run pre-mix at 40-1 in it or keep the oil injection? any tips or tricks on this jet ski for power or anything will be appreciated. Oh and my other thread about my 95 SPI thanks to all of you for the information i took it out on the water and tuned it and it runs and rides like a dream lol.

 

[smc0922]

How in depth was your carb cleaning?

Run it with the oil injection, but check the two small lines that leave the pump and loop over to the rotary valve housing. They probably need to be replaced due to age if they are original.

If it seems to run well and behave in the driveway, then take it to the ramp and run it in the water but still on the trailer for a bit, see how she reacts to the extra load on the motor- thats the only way you can really see how it will go.

 

[hondagini41339]

it wasnt really in depth but i ran a whole can of carberator cleaner through it the other day when i had it on the trailer in the water and it wasnt getting fuel seemed like but when it would finally open up when running on the carb cleaner it was hitting the rev limiter almost and pushing my fully loaded dodge nitro suv up the launch ramp with ease. i could not get the carbs off the intake manifold but i cleaned them good enough for it to idle on the hose and changed the fuel lines and it seemed to get fuel cause it was really responsive and a spark plug change. seemed to run fine on hose. i could only spot 1 tiny clear line with the blue 2 cycle walmart twc3 oil in it. it was smoking so im guessing it was mixing fine. i have to replace the oil intake line in the morning and gonnna definetly take it to the lake to make further adjustments. sory if i sound stupid the 92 xp and 95 spi are the first ever jet skis i have touched at all. i dont know anything at all about them but i have the spi water ready now im just working on the xp. any more help will be appreciated.

 

[smc0922]

I'm here to help.

What I mean by in-depth was that you basically only removed the square covers and cleaned what you could. If you disassembled the internals then we need to stop and review what you did. If you did it in the ski then that is unlikely.

The older skis im not 100% on but is there a fuel filter/water separator in the front of the ski below the steering column? (if you did the fuel lines it had one inlet and one outlet, it is between the fuel selector and the engine) Check that filter if there is one. Make sure the bowl is clean of dirt and water.

That one tiny line you found is the line that needs to be replaced. Its brother is on the other side as well (i.e., if you found that below the forward carb, then there is another below the rear carb) Both should be done.

 

[hondagini41339]

i just took both off and checked them and i think the guy i got the ski from replaced them actually the day i got them from him cause there in pretty good condition. i cant find a gas/water seporater filter anywhere on this ski but my spi hasone. i replaced all fuel lines and by passed the stock shut off valve with a inline shut off valve for temporary use and put a clear inline fuel filter. i guess all i have to do is take it to the lake and try it out and tune and tinker with it cause it seemed to run fine out of water.

 

[smc0922]

OK then hold on a second. Which outlet off the tank are you drawing from? and how much fuel is in the tank? The "on" pickup does NOT go all the way to the bottom of the tank. The RESERVE pick up does. if you are bypassing the selector then you need to go from the reserve pickup to your filter, to your shut off, (or vice versa- I like to put filters in the fuel system as early as possible) then to the engine.

 

[hondagini41339]

im going from the reserve pickup to a clear filter then to a shutoff valve and them on to the carb inlet and then im jst running a line back as a return. there is 2 more openings on top of the fuel tank and im just gonna lbock those off.

 

[smc0922]

Ok that's fine. I could see it now, 1/2 gallon in the tank and running off the "on" pickup..... Why won't it draw fuel? Well, duhhhhhhh!

 

[68ragtop]

You can really only block off the "on" connection on the tank if your bypassing the oem fuel valve. The other ports are the return fuel flow from your carbs, & the other is a vent line. You need both of those

 

[RodInEscondido]

TIME-OUT !!!

Did I see an above reference: "blue 2 cycle walmart twc3 oil "? At least one of the experts will clarify the consequences of using this stuff that is for use in outboards and 2-cycle small engines, not PWC (and especially not SeaDoo).

There are a number of threads on this subject in this forum, but I believe the consensus is to only use oil specifically designated for PWC. Walmart carries (or did carry) 3 acceptable oil types for this vintage SeaDoo, all Quicksilver brand: mineral, synthetic blend, full synthetic with prices going up in the same order. There are several other brands, you kinda hinted a Walmart close to you.

Again, I think the experts will agree that you should purge the oil system of all the old oil and use one of the acceptable oils ... good time to replace the oil lines rather than attempting to flush them out. The 2 small oil lines going from the oil pump to the plate where the carb assembly attaches can be acquired from your local lawnmower shop ... 3/32 tygon is typical. Easier to do it than serious engine work (if the engine is still ok).

Good luck and have fun.

Rod

 

[IDoSeaDoo]

I'll go ahead and warn you about something you should check before you get stuck on the lake. I have a 92GTS and I'm pretty sure your XP is the same way. In your fuel tank is a plastic tube/baffle which houses the pipes attached to the nipples you see at the top of your tank. Back in the day, they used that clear rubber line, that your bailers use, to pick the fuel up from the bottom of the tank. Later, they upgraded all those lines to hard plastic and integrated them with the baffle itself. If you still have those old rubber pick up lines, your days are numbered. There are two metal screen bullets attached to the bottom of those lines. With the lines having been submerged in fuel for 20+ years and those metal bullets pulling on them, they are likely to crack, or completely tear off. You will lose the ability to pick up fuel, or have a major air leak in your fuel circuit. I would pull it up and check to make sure that they are either hard plastic, or have been replaced with newer 1/4" fuel hose. It should only take you 15min or so. Beats having to get towed back.

NOTE: Since you're new to owning jet skies, chances are you might get towed back for one reason or another. It is very important that you block off your main water inlet hose with a hose pincher. Otherwise, the motion of the craft through water will push water through your cooling system, fill your whole exhaust pipe, and then eventually your engine. If you don't have a hose pincher and still need to get towed back, take a spark plug, take your cooling line off the head and stick the plug in the end of the hose, then tighten it. Once you get water in your engine, it's no fun getting it out, TRUST ME!

 

[hondagini41339]

ok guys have got the ski on lake lake, never took it off the trailer just backed it down in the water and attempte to start it. well i traced back a problwem to the fuel baffle i guess its called. problem is the jet ski will not suck gas from the tank. it only gets air. i put 20$ in fuel in this damn thing and thought i had it lined out for sure but now yert another problem. what will cause this? how to fix it? any help is appreciated. it is sucking air no gas what so ever but when i run a extra long piece of fuel line into the tank where you add fuel it pulses the fuel through the lines like normal. HELP i have no idea other then something is wrong with the fuel baffle.

 

[IDoSeaDoo]

My above post deails exactly this problem. Take out your fuel baffle and replace those hoses that are down there. Your hoses are from '92 and have long become brittle and rotten. You can test this by attaching a hose to your carb and putting the other end in a tank of fresh fuel. If it fires up, you got bad pickup lines. Get some 1/4" fuel line and replace them. Remember, the reverse hose should be shorter than the main pickup tube. Should be roaring down the lake in no time!

 

[hondagini41339]

pulled the fuel tank and the fuel baffle. found the bullet filter pick ups in the tank rattling around along with a metric shit ton of orange crud which is dissolved 10+ year old fuel line. im gonna replace the in tank lines and clean the bullets and fill with fresh fuel and hopefully this damn thing will be water ready along with my 95 SPI. also, what was the previous comment about a hose pincher about? i have never heard anthing like that before, please explain in further detail as i do not know much about these jet skis and pinching off the main water line sounds disasterous to me lol please go into further detail.

 

[IDoSeaDoo]

You are absolutely right, driving around with a hose pincher would be fatal to your engine. However, if your ski ever needs to get towed for any apreciable distance, the main water inlet line must be pinched off. Failure to do so will allow water to get forced into your cooling system, fill your exhaust, and eventually your engine. It's not pretty. Hose pinchers can be bought for like $6/pair. They're tiny little things. Also come in handy for random stuff, like pinching off fuel lines for when you work on your carbs, oil sys, etc.
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Oh and be sure to grease the driveshaft carrier seal with marine grease. You might have to look under a plastic cover for it. Wouldn't hurt to hit the flywheel with a shot while you're down there. Keep your driveshaft from getting stuck in there. Those 587 are great little engines. Mine has certainly taken quite a bit of abuse. But it's tride and true. A little care goes a long way.

 

[hondagini41339]

i misunderstood the hose pincher lol i thought he meant to run it all the time not (which i have not) just use the hose pincher for when i have to get towed back to the dock. yeah i have grease the bearing where the back of the motor has a grey plastic cover and a grease fitting under it. do what to the flywheel? i am misunderstanding again sorry

 

[IDoSeaDoo]

Oh, I was just gonna mention that I think you actually have two grease fittings: one on the end of the rubber tube that's attached to your hull (this one greases the carrier bearing), and one attached to the PTO (that flywheel disk attached to teh back of the motor). Your driveshaft splines stick into the PTO and are supposed to be greased periodically.

 

[mikidymac]

Two major issues I see.
1. As another said get rid of all of the TWC-3 oil and replace with the correct API-TC oil. The TWC-3 is not rated for these engines.

2."i ran a whole can of carberator cleaner through it the other day when i had it on the trailer in the water" This is not the correct way to clean these carbs. There are small filters that get clogged and carb cleaner will not clean them out. Also the cleaner is very harsh and you probably damaged the fuel pump diaphragms and o-rings. Not to mention the carb cleaner is so harsh it will remove the 2-stroke oil film from bearings and cylinders causing all sorts of metal on metal carnage.

I know you want to get on the water ASAP but do it correctly and you will be able to spend hours on the water instead of minutes. Get a genuine Mikuni carb rebuild kit and base gasket and rebuild the carb the correct way. Get an oul filter and new 3/32" lines and install fresh API-Tc oil. Then go run the ski like you stole it. Beleive me this is the correct way to do it.

 

[RodInEscondido]

pulled the fuel tank and the fuel baffle. found the bullet filter pick ups in the tank rattling around along with a metric shit ton of orange crud which is dissolved 10+ year old fuel line. im gonna replace the in tank lines and clean the bullets and fill with fresh fuel and hopefully this damn thing will be water ready along with my 95 SPI. also, what was the previous comment about a hose pincher about? i have never heard anthing like that before, please explain in further detail as i do not know much about these jet skis and pinching off the main water line sounds disasterous to me lol please go into further detail.

I do not know how much of a PITA it is on this model to do, but I strongly advise removing the fuel and oil tanks for cleaning. On an 89 SP I am doing, it needed gasoline to break free that "orange crud" and it is much easier to deal with with the tank out ... do it now or forever be cleaning up/replacing filters and stuff.

Rod

 

[IDoSeaDoo]

oh it's a PITA alright. Engine has to come out. I setup a fuel recirculation rig on my challenger using an old fuel injection pump I had from my old Eclipse. Ran the fuel through two seadoo filters and pulled out all sorts of stuff. The return was hooked up to a little nozzle so I could break the gunk free off the walls and bottom of the tank. got out a ton of crud w/o having to pull my tank, but it was a bit of a challenge to set up. Dangerous too if you think about it. Many suggested to just install a little in-line filter before teh carbs to keep an eye on/replace. I would at least do that.