Super Jet Having problems with first ski

[Stunts]

While jumping wakes last week, I knocked one of my cooling lines off to the exhaust. In order to fix it I had to take the exhaust out, get a new hose clamp on the hose and put it all back together. I bought my ski used and its been half assed put together. I see missing bolts, clamps, and even hoses that aren't attached to anything. Once back together, I tried starting it, it was cranking but wouldn't turn over, probably because of air in the fuel lines, but then it just won't even crank now! I noticed two lines that aren't connected. One looks like the priming line on the dual carbs, its connected to both carbs but to nothing else? There is a bulb primer that is hooked up to the fuel lines though. Also I noticed another hose that comes off where to pump and firewall meet but again, its just a dangling hose. Its on the left side of the pump/driveshaft if your looking at it thru the engine bay (right side of the ski). Any idea what that is? I don't know if they have anything to do with my ski not starting now, I don't like dangling hoses not connected to anything, hate rigged POS work! I should just buy a new SJ. Thanks for any help for a noob.

 

[j'ray]

take a picture of the lines in question and the overall engine compartment.

my gf just bought a sj that had a few random hoses laying in the compartment. ended up being busted off flush kit and random breather tubes going up the pole

 

[Stunts]

This is the T hose coming off the novi carbs. They said on their diagram that is the priming fitting, but where do those lines go?

And here is the random hose that attaches to I guess the pump/driveshaft that goes into/under the firewall

Hope someone can figure this out, thanks.

 

[D-Roc]

uhg, what a mess, i think, and don't take this wrong, but what is wrong with it is everything. haha. I hope its something simple. those primer fittings need to be plugged if not used and make sure that that hose is not supposed to be connected to the fuel feed line to the carbs. hence the air leak and not pumping fuel.

 

[Stunts]

Yes, a mess it is. I bought this ski not too long ago like this, rode it a few times and of course it was only a matter of time before something came disconnected. Its my first stand-up so I don't know too much about them. So I can cap that primer line? Where SHOULD it go? Any thoughts on the other line?

 

[D-Roc]

the primer line can be fed from the fuel in line to the carbs. it should go to the primer bulb and then back out to your carbs. having the line disconnected there by the carbs is not the end of the world for how the carbs work, unless it is leaking fuel because the primer bulb is crap and one line is not connected to complete the circuit. the end of the primer system is open and should be relying on the bulb to not leak. I really don't know where to start with your ski, it could be disconnected for a reason or it fell off jumping. i don't know. what i do know is that on that ski if it was mine i would rip everything out. the superjet will run better with about 1/3 of all that crap in there. K.I.S.S. do you ride with anyone that knows about skis? you need a mentor if your a newbie. As a newbie you must use this site to source a local guru and have him show you some things. don't give up either, more details and lots of questions will help you but you MUST check to the best of your ability the things people suggest. many symptoms overlap eachother from fuel to ignition and air leaks etc. i know this is not the solid fix it answer you want, but wait and go check out your ski a bit more and look for your fuel line routing and figure it out and how it is run and report back.

 

[Stunts]

Thanks for the reply. It was running fine before I knocked that hose off. All the fuel lines are good, I didn't touch them except at the tank to remove it which I put back the way I found it. The supplies are right, pulsing and returns. The bulb primer line only has one line going from it to the supply lines. So I'm not sure what's up with that, I never use it anyway, just pump the throttle a little and it usually starts fine. Should that primer line run to the primer bulb in my tray? The fact that the end of that hose has a ziptie on it makes me think it hooks up somewhere, but it can't reach the primer bulb. What about that other hose by the firewall/pump? What's up with that? And what all can I remove from this ski?

 

[D-Roc]

the line from your midshaft should be for grease. the primer should have an in and an out. the "in" can be tee'd into the main carb line but some people tee it in the return line. the primer bulb "out" should be tee'd to go to each carb. do you have a fuel on/off/res switch? the line in your hand if it is the one connected to the top of the carbs in the primer fitting area, should go to the primer bulb "out"

 

[D-Roc]

you have wires and connectors and hoses all over the place. what is all that stuff, haha.

 

[Mdavies_02]

I didn't see it in the picture, but it sounds like a "Stock water siphon". D-roc will be able to chime in but if I am correct the hose coming through your firewall on the Port side is the stock water siphon used to drain the bilge of water. There usually is a small box under your driveshaft, as well as 1 Line going up your engine compartment wall, doing a 90, and coming back down.

Sound like what your seeing? I may be way off course.

 

[D-Roc]

i see a pump water cooling line with a tee connector for flushing. that should be going to his pipe exhaust manifold. i see some wires, tape, a bilge pump, some black hose thing that might be a stock siphon on the opposite side of the bilge pump, a positive battery cable and some other confusing looking hoses by the carbs that could be the fuel return lines that should be tee-d back to one and then to the tank.

 

[Stunts]

Ok so that primer line must go to the bulb, I must have knocked it off, although I thought it didn't reach the bulb, I am probably wrong. So that solves that. The other line is my grease fitting? I wonder why he would have put a hose on that? Keep it clean or make it look cool by cluttering up the engine bay with blue hoses, awesome. There is another grease fitting I saw on the engine itself, maybe he connected it to that, pretty pointless. If infact its just a fitting, I am taking that hose out.

As far as some of the hoses and wires go, the two (red and black) wires with tape are my bilge. I have no reserve. There is one line out of the tank T'd into each carb, each carb return T'd back into the tank. Each carb pulse line T'd into the case. That black corrigated hose has wires in it, all the other wires I have no idea what they are for, they all come out of the black box on the firewall (e-box is what its called right?). So I don't know how I can really clean up my engine bay?

I don't think the other single hose is the stock siphon, its connected at the driveshaft pump but maybe that could feed the siphon? There is no box under my driveshaft, my bilge (rule 500gph) is there and there is this bracket there as well, maybe for another bilge. The guy I bought it off of said it has a scupper valve and rule bilge, didn't mention anything of the stock bilge, so I am sure its long gone. This could be the hose that would supply the stock bilge though? I don't know what to do with it though, cap it off? I'll have to pull the hose off and see if its a grease fitting or something for water flow, wish I could see it in action if infact water is coming out for my bilge.

Here is a pic of the whole engine bay when I was working on it, obiously pipe, battery, tank removed, the fuel lines I bent back away from the tank so ignore those. Don't know if this helps any or makes it look worse haha.

 

[Stunts]

Dunno if this helps or not but here is the engine bay the day I bought it.

 

[Stunts]

So the ski won't start at all, that one line was to the bulb primer, but the other I don't know yet. Regardless the ski won't F'N start! It makes a click like it tries but doesn't crank. I am charging the battery now but don't know if that is the problem.

 

[Stunts]

Got it cranking, but still won't start. I had the fuel lines disconnected so theres probably a lot of air in the lines, don't want to crank it for too long. I used the bulb primer and pulled the throttle, when I did that it almost cranked over but I didn't want to push it. I guess I will just let it sit until tomorrow and give it another try. Any suggestions? How do you get a ski started if you have air in the fuel lines from removing them?

 

[D-Roc]

dump some gas down the carbs or handchoke the carbs.

 

[Stunts]

Ok I will dump some gas down there, I don't have a choke anymore on my ski, guess I could just cover over the air intake with something though. Thanks for the help.

 

[Stonerok]

In post 12 you wrote "There is another grease fitting I saw on the engine itself, maybe he connected it to that, pretty pointless. If infact its just a fitting, I am taking that hose out. " Could that be a pulse fitting for the fuel pump on one of the carbs?

 

[Stunts]

I don't know what the originally owner did or had connected but my logic if he did connect the two was to keep them clean by covering them up with hoses? Maybe he was trying to make it look cool by cluttering up the engine with blue hoses, pretty pointless. I found the pulse line though, that is hooked up and good. I just need to go home, get some fuel into the carbs and start it, should be fine now that I got everything back together.

 

[Matt_E]

In stock 701 Superjets (RN and SN), there is a hose going from the grease fitting on the midshaft housing to another grease fitting bolted to the flame arrestor base.
It's done for ease of maintenance (since you are supposed to grease it every now and then).
With aftermarket carbs, there is no spot to bolt that hose to.