650/X-2 650 Superjet starting problems.

[Austin_fish_]

Hey guys, so my ski is a 1990 650 superjet. I Have been having a slight problem with it latley. Wondering if anyone out there can tell me where to lead to.
problem- Will start fine when it is on the charger or after it is fully charged. After riding for any amount of time if I shut it off and try to start it up there is nothing. The battery is new last year. When I try to start it the only thing i hear is a whining sound coming from the inside of the engine. The second i put jumper cables to it it fires right up. Is there something that is draining the battery while it is running?
thanks!

 

[zczek]

In the water or out of the water? Have you tried out of the water? Also, sounds like start switch is good. I'm wonder if after you ride a while what would happen if you bridge the positives on the starter relay with a screw driver. I know popping the ebox out is a pain, but it would be a good way to tell if it's your battery or something else.

 

[Brink420]

Buy a $5.00 voltmeter from harbor freight. Test the cables and solenoid inside e-box. Put in a new solenoid. I found one for mine on eBay for $10. And get a GOOD gel battery that's sealed.

 

[CRJ]

if your hearing a whining, im going to take a guess here.

your battery probably doesnt have a huge amount of amperage for cranking, and you may have a stick bendix. the noise you hear is most likely the starter spinning and the bendix not engaging. this could be due to dirt, or even the bendix shaft expanding just enough (with the heat) to make sliding on the shaft difficult. before you get too drastic, try greasing the bendix first.

 

[Austin_fish_]

In the water or out of the water? Have you tried out of the water? Also, sounds like start switch is good. I'm wonder if after you ride a while what would happen if you bridge the positives on the starter relay with a screw driver. I know popping the ebox out is a pain, but it would be a good way to tell if it's your battery or something else.

- It does it in and out of the water. My start/stop button is really really touchy. It has started before from just pulling out of the launch. Would this be the cause? maybe because it is running the starter more than the battery is being charged?

- Yes the whining is coming from the starter. So if it is a stick bendix i will have to take the starter apart and grease it?

 

[zczek]

try opening the stop start switch assembly then taking the stop start switch apart, you may have something shorting that circuit consistently. clean the 4 gold plates and put some dialectric grease on it.

bendix gear is actually behind the flywheel, so you'd need to take out the gas tank, remove the bolts on the flywheel cover, take a spark plug out, put a rope down the spark plug hole to block the cylingder from completing a stroke and then crack the flywheel nut off. i think its 14 or 16mm, can't remember. Then get a puller and thread the puller into the flywheel. Be careful not to go too far deep into the fly wheel as you will damage the coils on the stator. i like to just loosen the flywheel nut a bit and pull off that. Once you hear the pop from the puller, yank the fly wheel, then you can take the bendix out. When you take it out if you play with it and it gets stuck or clicks you will need to replace it. Prob best to just buy another one prior to doing all this. When resealing make sure to use some marine anti corrosive stuff on the bolts you put back in and put some gasket sealant on the flywheel cover.

 

[Austin_fish_]

try opening the stop start switch assembly then taking the stop start switch apart, you may have something shorting that circuit consistently. clean the 4 gold plates and put some dialectric grease on it.

bendix gear is actually behind the flywheel, so you'd need to take out the gas tank, remove the bolts on the flywheel cover, take a spark plug out, put a rope down the spark plug hole to block the cylingder from completing a stroke and then crack the flywheel nut off. i think its 14 or 16mm, can't remember. Then get a puller and thread the puller into the flywheel. Be careful not to go too far deep into the fly wheel as you will damage the coils on the stator. i like to just loosen the flywheel nut a bit and pull off that. Once you hear the pop from the puller, yank the fly wheel, then you can take the bendix out. When you take it out if you play with it and it gets stuck or clicks you will need to replace it. Prob best to just buy another one prior to doing all this. When resealing make sure to use some marine anti corrosive stuff on the bolts you put back in and put some gasket sealant on the flywheel cover.

yup about a month ago i had to take the start stop apart because it wasn't sparking. - you think my problem could be just this? because I have been putting off getting that rebuilt.
thanks!

 

[CRJ]

only thing i do different for pulling the flywheel is i use a screwdriver between the case and the flywheel teeth. the whole rope, crank piston thing freaks me out.

 

[zczek]

I guess those flywheel teeth are pretty strong. I thought I bent a rod on a ski but the key way actually ended up ejecting and getting stuck in the teeth. Then I let water stay in the motor since i thought it was blown and completely ruined everything. Expensive lessons are lessons not soon forgotten.

 

[zczek]

yup about a month ago i had to take the start stop apart because it wasn't sparking. - you think my problem could be just this? because I have been putting off getting that rebuilt.
thanks!

I would def take a look at the stop / start switch. They go bad. Take note of how all the pieces go together, they are kind not really straight forward to put back together.

 

[Austin_fish_]

I would def take a look at the stop / start switch. They go bad. Take note of how all the pieces go together, they are kind not really straight forward to put back together.

alright sounds good thanks man. since i already know its bad ill just send it in and have them rebuild it. are you pretty sure thats the problem? or should i look at the bendix first?

 

[zczek]

I would check everything out. Sounds like bendix is your culprit tho if you're start stop is triggering the starter tho.

 

[Austin_fish_]

Thanks. One more thing. A buddie of mine told me theres a good chance its the stator. Because when the battery was new and not drawn down by somthing it started fine every time. How do i test or see if the stator is bad?

 

[Roseand]

It ain't your start stop switch if you just hear a spinning sound.. Inspect bendix and starter and go from there. Don't just assume it's the start switch and send it off to get fixed . If you hear the starter spinning, your switch is fine. Take out that bendix and make sure it spins back and forth freely and lube it up nicely. Take note if it's wet in the flywheel housing as well. Constant water exposure isn't great for starter/electric components. If that's an issue I'll elaborate on how you seal behind the starter back up but I don't feel like it right now. Lol
Also, in terms of getting a start switch rebuilt if cleaning the contacts doesn't work.. . I wouldn't go that route. You can buy the inner switches and wire harness for about 60$ brand new oem. If you need more detail lemme know, there's a thread on here with the part number.
Stator.. There are some ohm specs I believe but I'm not an electric guru so I ain't gonna try to explain how to check it lol. In my opinion, I feel like @CRJ s theory could suffice.. Usually when you have a dead/low battery you can't get anything to turn because the bendix is still attempting to get engaged, but if it isn't, it doesn't take much just to get the starter to spin.
Do you have a battery checker to see if your battery is for sure running dead after a little while? How long of a ride are we talking about until this happens?
If it's instantly then I wouldn't assume your stator is junk. People run total loss for a decent amount of time and still have enough charge left to start a ski up. Makes me feel like it's a bad battery/(possible bendix issue) in your instance, rather than a charging system issue.
So to summarize that, check out your bendix and battery and then get back to us..

Sent from my XT907 using Tapatalk

 

[Austin_fish_]

Alright cool thanks a lot man. It will die instantly even if i only ride it for a couple minuets then trie to start it all I will hear is the bendix spinning but the second i put jumpers on it it will fire right up. And yes I checked the battery and it is low. Ill check the bendix and battery out and let you know what happened from there. Thanks again.
- It couldn't be the stator because without that running the ski would die while riding it correct?

 

[JetManiac]

Sounds like a weak battery and possibly a going bad bendix.

The bendix needs to spin at a speed fast enough for it to open up and engage the flywheel and turn over your motor. Your battery is probably just bad and not quite enough to do it. Jump it and it works fine tells me probably battery. Otherwise your bendix may be sticking and need to spin faster than normal to work.