Unfortunately, these steps won’t work on fuel injected or 4-TEC SeaDoos. Here are the steps we recommend for testing the fuel sending unit for 2-stroke carbureted SeaDoos. Once the fuse blows, the sending unit is rendered non-functional since the fuse can’t be replaced. While the design is simple, the weak link in the system is a one-time fuse on the fuel sending unit’s circuit board. These Reed switches are activated by a magnet attached to a float that rides up and down internal rails with the fuel level.
1994 seadoo vts repair full#
Regardless of the model and year of your SeaDoo, the resistance ranges from 90 to 0 Ohms, with 90 Ohms representing an empty tank and 0 Ohms representing a full tank. These Reed switches and resistors are wired so that the total r esistance across the circuit board increases as each Reed switch closes from the bottom of the tank to the top. The sending unit is made up of a long narrow circuit board with 9-12 Reed switches and several resistors. Inside your SeaDoo’s fuel tank is a plastic tube known as the fuel pickup, and within this tube is an integrated fuel sending unit. Here’s what we shared with Paul about testing his SeaDoo’s fuel sending unit.
1994 seadoo vts repair plus#
Fortunately, Paul likes to take things apart but before he did he came to Jet Ski Plus for some advice. The previous owner claimed the fuel sensor worked when he had it and so Paul was faced with getting the fuel sensor replaced, repaired or fixing it himself. But when he took it out for the first time on the lake, the fuel sensor didn’t appear to be working. One more note – I don't have a parts book for the newer Jetboats that use the mercury motor, so if you need an MPEM for one of those, I would have to call my supplier for the part number and availability.Paul Martin of Arnold, Missouri got a wicked deal when he bought his used SeaDoo. I also have aftermarket mpems available for select older models. If you're interested in a conversion for a particular Rotax powered boat model, let me know and I'll see if I can put together a system for you. As long as the operator is careful, that shouldn't be a problem. The only drawback to the conversion is the elimination of the neutral rev limiting features built into the boat mpems. So far I have conversions available for 1996 Challenger and 1996/1997 Speedster. This will allow for cheaper repair of the boats defective mpems as well as to separate the boats electrical system on twin engine models so you can get back home on one in case of an mpem failure. If interested in any of these services, e-mail me and I'll send you a quote for what you want to do.Īlso, I'm in the process of making conversions so you can use a PWC mpem/electrical box in the various Rotax powered boats.
1994 seadoo vts repair install#
I additionally can install the replacement MPEM in your electrical box if desired as well. I also stock Lanyards if you need an extra as well (up to 8 can be stored in the MPEM). That way you're ready to go once you get the replacement part. I'll then program your lanyard to a new/used MPEM you've purchased from me. If desired, you can send your old MPEM and DESS Lanyard to me so I can verify that you aren't trying to get a stolen boat running. I additionally offer a programming service for DESS equipped boats. If you are wondering what MPEM is in your PWC or Jetboat, look below to find the answer! The area above is always changing so check back often as links are added. Hopefully this page will help others avoid the same fate!ĬOMING SOON… Module Conversion Kits for 204470139 204470155 204470179 204470184 MPEMs Have you had a bad experience with a dealer, repair shop, or engine rebuilder? If so, now you can post your experiences here. If you have one, contact me with description and price. If you have parts or know of a Sea Doo dealer in your area that is closing, contact me at with the details.īlown or wrecked Sea Doo watercraft in the Ohio vicinity. Parts Inventories from overstocked or closing Sea Doo shops. MPEM Ignition Module Reference My friends at have many hard to find parts in stock as well as custom kits for your Sea Doo plus they ship all over the world so check them out for your Sea Doo parts needs!
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