mpem

Background: I have been trying to troubleshoot a problem I created by connecting a battery charger to my ski and cranking it right after I purchased it and it immediatly started blowing the 5A fuse. I replaced the MPEM with a used unit off this site and it continues to blow the 5A fuse...

Im guessing my problem is either with the voltage regulator mpem or ecu or all of the above? - 2007 Seadoo Speedster 150 My friend used the boat and the batt was dead so he tried to jump start it with his jeep.... now when i put the lanyard on the post the boat doesnt...

Hey all. Very new to this forum, but from what i've read I've learned quite a bit! I'm also very new in owning a SeaDoo ( one week!)... which has so far been a love hate relationship. Anyhow I hope someone could help me out here because even my local (89 miles away, local) SeaDoo authorized...

1998 Seadoo XP blowing 15 AMP fuses. Running perfect the last two years. Riding today... hit a wake got sideways... I'm half on half off the ski... reach up and yank the lanyard to shut it off... never flipped over. Get back on ski. Nothing. No beep... no power to gauges... Tow it back in...

here is the story. i was out jetsking on my 95 seadoo XP, got it up to full speed, when about 2 minutes in, it just stopped like someone pulled the key. no electronics, no starter motor, no gauges, nothing. got it home. 5 amp fuze was blown( neither of the 2 15s are blowing). then i...

Just bought a speedster and having issues with it. Only one engine will start and run. We have: Checked every possible fuse known to man-NONE blown Ohmed and checked continuity Swapped starters-Both good New solenoid Solenoid jump with turn engine over fine Getting continuios tone when...

I have a 1996 Seadoo Xp 787 and I had the battery out of it for the winter to keep on trickle charge. I had started the ski about amonth ago and everything worked fine. Today was a nice day and i was considering maybe taking it out so I put the battery fully charged back in. Well it was hard...

I have a 96 xp, when I hit the start button the guages and everything works as it is supposed to including timer. The solenoid will not click and send juice to starter. The Y/R wire from MPEM that provides + to solenoid has 11.4 volts. When I bench tested the solenoid with 12.5 volts the...

I am suspecting my MPEM is dead but I am still holding out some hope that I don’t have to spend $$$$ to get a new one. I bought the boat used and it ran fine on the lake during trials. Get it home in the drivewayand had trouble starting it with an inability to get the 2 beep code(was...

Hallo I still have problem. Thought that problem was solved with a new battery. I went to the sea and it did work perfect. 2 weeks after. No beeb at all. Fuses was fine, battery full. But did charge it. Have looked true the electric wiring and did check the power and ground it was good in...

Okay so i bought a 95 seadoo sp 580 from a friend of mine and he said it would run then blow the fuse on the mpem after a little bit. so i got on here and everyone said the mpem was bad... so i replaced the whole electrical box with a new one, but it was out of a 93 or 94 and it was a little bit...

[B]WTB: 1999-2002 GTX Ltd MPEM 951[B] WTB MPEM for a 99 GTX Ltd but years 1999-2002 will work. Also 2000-01 LRV uses the same MPEM. Looking to buy a used one, new part# is 278 001 525 which replaces old part #278 001 398 (some ended in 399). Or if anyone knows where to get a hold of an...

Can the MPEM on a 1996 Speedster be bad if the fuses are not blowing? When the MPEM goes bad, is it gone completely or will it function normally some times? Thanks

My 1996 Speedster will start one minute and will not start the next. If one engine starts the other one will start, if one engine wont start, the other engine wont start. Sometimes I get beeps and other times i do not. Both Tachohmeters are stuck on 5000. Once i get it started and underway...

I have a 1998 Sportster 1800 with twin Rotax engines. When I put my key in, I only get 1 beep. Then when I press one of the start buttons, I get a loud beep. Is this an MPEM / 5 amp fuse problem? How can I know if this is the problem or if I need the replace the MPEM? Please help!

Hey guys! I'm working on my brother's 1993 SPX and we found that he has no spark. I pulled out the gray box and found that the 15 amp fuse was blown. Further investigation showed that the yellow recifier wire had rubbed down and arc'd out on the positive post of the solenoid. There were a few...

Hello, i bought a 96 speedster and put a new battery in and as some as i put the positive cable to the positve battery post the left engine cranks. I thought it was the selonoid so i bought a new one. Still the same results. Except when i unplugged the stitch that comes from the mpem that runs...

The ski does not run well above 3,500 RPM. Both cylinders have spark and my mechanic tells me that the timming is not advancing. We have checked the crank - it is true, we have checked the flywheel and associated keyway, it is as per specification. The VTS recently blew its fuses and I have...