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96 xp cranking probems

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jhughesnsfd

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I installed a new battery, i get the two beeps turns over a couple times and then nothing. If I take the key off and try again, I get same result.
 
I installed a new battery, i get the two beeps turns over a couple times and then nothing. If I take the key off and try again, I get same result.

How well does it crank when it turns over and when it stops does it act like it is having trouble turning over almost like a dead batt?
 
yeah, it acts like a dead battery, one full turn and then it stops. take the key off and put it back on and you get the same thing everytime.
 
To tell you the truth it sounds like you have a weak starter but this is a first for me let me get the DOC to help us ill try to message him
 
Battery is getting soft. Once the voltage sags below 10.5v ... the MPEM shuts off, and won't reset until the lanyard is removed.
 
Battery is getting soft. Once the voltage sags below 10.5v ... the MPEM shuts off, and won't reset until the lanyard is removed.

That was my initial thought but he says he installed a new batt so i was more thinking starter maybe weak brushes
 
I thought it was the battery also, but this is a brand new one, which is doing same thing as the old battery, unless I bought a bad battery. not sure. I charged the new battery 8 hrs. on 1 1/2 amps.
 
That was my initial thought but he says he installed a new batt so i was more thinking starter maybe weak brushes


It could be a VERY high amp draw on the starter... but the wires would be smoking hot after. I've seen a bunch of bad batteries "Out of the box" over the years to not trust a new battery until it's shown me it's good. But, Yuasa, and exide never have issues. (that includes Die-Hard)

Wal-mart, Chief Auto (and it's brothers) and Interstate are some of the worst.
 
Yeah, the wires aren't hot and all the terminals are good and clean. maybe just a bad battery. It is a walmart battery though. I've had good luck in the past as long as you keep them charged. Who carries yuasa? local seadoo dealer
 
Yeah, the wires aren't hot and all the terminals are good and clean. maybe just a bad battery. It is a walmart battery though. I've had good luck in the past as long as you keep them charged. Who carries yuasa? local seadoo dealer

Also just buy a SEALED battery they come charged and ready to go that is all i buy and have never had a problem.
 
The easiest place to get an actual Yuasa is from sears or K-mart. That's who builds Die-Hard powersports, and Motorcycle batteries. Your local dealer may have them... but they will normally be a little overpriced. Full retail on the AGM 16CL is about $110. You can catch them on sale at Sears for about $85... and the "Wet" version was as low as $57. (I picked up a few this year)
 
What is the battery voltage?

For lead acid batteries:

12.67 fully charged
12.30 50% charged
12.00 25% charged

How are the connectors at the starter, battery, starter relay? Everything needs to be clean and tight.

If its charged and connections are good, put a voltmeter on battery while you try to start it. If the voltage remains above 12.40, you have a bad connection inside relay or starter. If voltage dives below 11.25, could be problems in starter or under-rated battery. It could be something weird in engine, pulling the plugs and turning it by hand will tell you that.
 
The voltage seems fine on the battery, I've pulled the plugs and turned shaft by hand. seems to turn normally with compression. What else should I be able to tell by turning it by hand.
 
What is the battery voltage during cranking?

What exactly IS the battery voltage during cranking? This is critical, it will tell you if the starter relay is delivering the current required to drive the starter motor, whether there is enough voltage to drive the ignition, and if the battery has the cajones to do the job.

As stated, if your battery remains >12.40Vdc, the starter IS NOT drawing enough power, or the starter relay will not deliver. If it goes below 11.35Vdc, the battery is too weak, the starter is in trouble, or any of several other things could be wrong.

This, BTW, plagues auto mechanics as well. They change the battery, starter, regulator, solenoid, etc...before they find the real problem in hindsight.

As for turning the engine by hand, it just assures that nothing insane has happened mechanically (a fried rotary valve gear/bearing or wrecked main bearing). Its an easy thing to check (which an auto mechanic CANNOT DO to a V8 engine).

Good luck,
Russell
 
hello all im new here i just bought a 97 seadoo XP and i to have problems ... first off it cranks as if the battery is dead .. i got it to turn and it wants to start .. but i herd a pop sound ... lol i kne excalty wut happened starter busted ... i pulled it to find starter broke in half ... so i ordered brand new starter relay and plugs... motor spins freely if i stick my finger in the spot the starter goes and spin with no plugs and all teeth felt good ... so i will let u kno if it is the relay or starter
 
Thanks, I'm beginning to think my problem maybe hydrolock. It won't turn over unless i take plugs out. I noticed my oil resevoir was almost empty. I read somewhere else there is a seal that can go bad and leak all the oil into the block. Anyone heard of this? How do I fix it? I haven't sunk it or got water in the motor.
 
7.5 Volts IS TOO LOW. Either the starter is bad or the battery is inadequate (like Dr. Honda told us). I just rebuilt my starter for doing the same thing, (had to pull the plugs to make it turn over the motor). The armature contacts were badly pitted. I locked the armature in my cordless drill and turned it while buffing the contacts with 320 Wet-or-Dry sandpaper, then 600, then 1000 sandpaper to give it a nice smooth surface (if you leave it rough the brushes will dissolve). NOTE: be certain you mark the brush cap and field coil with "X"s so you don't screw up their positions for re-assembly (if you do the starter will turn backwards). When I was done, the starter had plenty of MOJO, and the Bendix gear let go. Tried cleaning the Bendix, but it would start 2 or 3 times, then let go again (spinning, but not turning motor). Ended-up just buying a starter anyway.
 
Almost forgot, hydrolock...my 787 has seals on either side of the Rotary Valve drive gear (center of crankshaft). I guess if one of the seals blew, the oil from the reservoir could flood the crankshaft and balancer shaft compartments. There is a cap screw on the crankcase (face up, at end of balancer shaft) which allows you check for this. If you unscrew it and oil comes gushing out, that would be too much oil down there. I would assume that you could hook up a tube to either oil port of the Rotary Valve shaft, block the other one, and then do a vacuum check across those seals. Refer to Dr. Honda for this one, experience will prove invaluable with this diagnosis.
 
Thanks, I'm beginning to think my problem maybe hydrolock. It won't turn over unless i take plugs out. I noticed my oil resevoir was almost empty. I read somewhere else there is a seal that can go bad and leak all the oil into the block. Anyone heard of this? How do I fix it? I haven't sunk it or got water in the motor.

it takes alot less battery power to crank the engine without the plugs. before you get into overanalyzing, just take the battery to autozone/advanced auto and have them load test it for free, but it sounds like a bad battery if voltage is dropping to 7.5 when you crank it. return it to walmart they are nothing but headaches. if it ran ok before the battery died I don't think it hydrolocked while you drove to walmart, unless you had the hose running without the engine running, but you already said it cranks with the plugs out and didnt say anything about water coming out or oil for that matter
 
That's an easy check, bigJake, good advice.

Note: Once the starter motor stops turning, the starter essentially becomes a dead short. After a few seconds, the armature coils begin to heat and melting of their insulation starts (smells like burned cotton candy). Also, this overloads the starter relay, and the battery. A 16AH battery can deliver about 80-100 Amps in a dead short condition, for a limited amount of time, which is usually enough time to do some damage if the person pushing the button is very persistent.
 
It is blowing oil out the spark plug holes when I turn it over. It sat up for over a year. It was running fine the last time I used it. I bought a new battery just cause the old one was dead from sitting up. Any help what to do now would be appreciated.
 
It is blowing oil out the spark plug holes when I turn it over. It sat up for over a year. It was running fine the last time I used it. I bought a new battery just cause the old one was dead from sitting up. Any help what to do now would be appreciated.

blow the oil out as best you can, put in new plugs and see if it will start. then you'll have to determine if the accumulating oil after sitting is serious enough that needs addressed but that part is beyond my training :)
 
It is blowing oil out the spark plug holes when I turn it over. It sat up for over a year. It was running fine the last time I used it. I bought a new battery just cause the old one was dead from sitting up. Any help what to do now would be appreciated.

mine sat for a year too and did that when i first turned it over. I just got a new batt and pulled the plugs and let it roll over for about a min and the oil slowly turned into just a mist. Then i just threw a little gas into the cylinders and put the plugs back in and turned it over and it started after a while but i smoked out the whole street but after 5 min or so of running it started to go away now i have no problem with the oil in the cylinders. My battery did the exact same thing you are describing so i went and got a new one for 90 bucks "A SEALED ONE" they come fully charged and dropped it in a boom there she went
 
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