Re: SeaDoo Problem
before buying a new key try to take a pencil eraser ad clean the metal insinde the key with it, also clean the dess post. if these are not perfectly clean they will not work. some other things to try are
1. if you have a buddy with a seadoo put his key on and it should be one solid beep, indicating incorrect key
2. if still no beep ground the wire off the temp sensor and the beeper should go off, if not then your buzzer may be bad.
3. check dess post, service manual should have procedure for this test.
4. as an absolute last option your MPEM may be bad. if this is the case then there are options out there for repairing the MPEM, or you can pick up a used one for 200-300.
there is another forum called seadooforum.com that has a lot of people that really know there stuff on seadoos, i have learned alot over there