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Rotax owners keep this handy

Discussion in 'Rotax Engine Topics' started by ScarabMike, Apr 16, 2017.

  1. ScarabMike

    ScarabMike Jetboaters Commander Scarab Forum Lead

    Messages:
    1,801
    Location:
    Fleming Island, FL
    Ratings:
    +1,516 / 12
    Boat Make:
    Scarab
    Year:
    2014
    Boat Model:
    HO Impulse
    Boat Length:
    19
    This is for all of you Rotax powered boats, and PWCs.

    This weekend I finished some good TLC on my Scarab. I washed it, and was going to run the engine to check my fluids. I ran into this problem, and the solution was cheap, but not easy to find at all. I figure I would pass this along.

    Let me give you a back story so you guys can read the symptoms.

    Over the winter my boat got minimal usage. I would run the engine once a couple weeks to get some fluid though it. About 2 months ago, I started to notice that there was times where my boat would not fire or crank on the first try with the key. I would finally get it to go after a couple, sometimes a few more.

    Finally this weekend it wouldn't crank at all.

    I checked the breakers in the battery switch panel, and checked all of the fuses, and connections. All good.

    I checked all of the grounds, and cables from the battery to the starter. This lead me to believe that the starter solenoid was bad. This is located on the rear fuse box, and has 2 red cables attached to it. You can bypass this, and test the starter by touching both sides of it. This will make your starter turn. If this happens, then you know your starter is good.

    Ok, so that led me to believe that my starter solenoid was bad, no biggie. You can get a new one online for a few bucks. Here is what it looks like. (but this was not the problem)
    [​IMG]

    Now, here is here i found out that even though it had all the symptoms, the solenoid wasn't the issue.

    If you place your key on "run" position, and you bypass the solenoid, the engine will crank and start IF the solenoid was the issue, guess what, it did not run.

    Here was the solution after a few hours troubleshooting......

    In the rear fuse box, there are two relays. They will both click. This will make you believe that they are good to go. One says engine ignition, the other says boat electrical or in my seadoo it says Canbus relay.

    To test these you have to physically pull them out. shake them and listen carefully. If one of these fail especially the boat electrical one, the engine will prep itself, the cluster will sweep, and then it will not crank.

    Here is a picture of this relay. It is a $4 part, and the dealers will want to charge you $40-50 for it, plus 2 hours of labor to replace it.

    I advise all of you to keep a couple handy in your emergency equipment in your watercraft. These will cause you some headaches, and a ton of cash to fix. Especially with Scarab, Glastron, and Chaparral dealers that are not knowledgeable as they should be.

    IMG_1416.JPG-1.jpeg
     
    • Like Like x 6
    • Informative Informative x 3
  2. ScarabMike

    ScarabMike Jetboaters Commander Scarab Forum Lead

    Messages:
    1,801
    Location:
    Fleming Island, FL
    Ratings:
    +1,516 / 12
    Boat Make:
    Scarab
    Year:
    2014
    Boat Model:
    HO Impulse
    Boat Length:
    19
    • Like Like x 3
    • Informative Informative x 2
  3. Pirana

    Pirana Member

    Messages:
    67
    Location:
    TX
    Ratings:
    +42 / 0
    Boat Make:
    Scarab
    Year:
    2016
    Boat Model:
    HO Impulse
    Boat Length:
    25
    Good to know....thanks
     
    • Like Like x 1
  4. NavyShooter

    NavyShooter Member

    Messages:
    41
    Location:
    Windsor Junction, NS
    Ratings:
    +86 / 0
    Boat Make:
    Glastron
    Year:
    2015
    Boat Model:
    GT
    Boat Length:
    18
    Is there a recommended spares list for rotax owners? I have a Glastron 187 with a 150HP Rotax in it.
     
  5. ScarabMike

    ScarabMike Jetboaters Commander Scarab Forum Lead

    Messages:
    1,801
    Location:
    Fleming Island, FL
    Ratings:
    +1,516 / 12
    Boat Make:
    Scarab
    Year:
    2014
    Boat Model:
    HO Impulse
    Boat Length:
    19
    • Like Like x 1
    • Useful Useful x 1
  6. Slugger55

    Slugger55 Jet Boat Addict

    Messages:
    398
    Location:
    Tyndall AFB, FL
    Ratings:
    +231 / 13
    Boat Make:
    Scarab
    Year:
    2014
    Boat Model:
    HO Impulse
    Boat Length:
    19
    Just ordered four!!
     
    • Like Like x 1
  7. ALAN MANN SR.

    ALAN MANN SR. Well-Known Member

    Messages:
    48
    Location:
    Wimauma, Florida
    Ratings:
    +26 / 0
    Boat Make:
    Scarab
    Year:
    2015
    Boat Model:
    HO Impulse
    Boat Length:
    16
    Well I was going to take my 165 out today and always check to make sure it will start before putting it in the water. Would not start, same symptom. Turn key to run, cluster does it sweep, turn key to start nothing. Everything looked good, removed clip from kill switch, turned key to start pushed kill switch in with finger, started right up. Put clip back on, started back up. Away I went to boat ramp, put in water and had no problem the rest of the day. Had a blast. Don't know the legality of bypassing the kill switch, I know on skis it is not legal. Just my two cents.
     
    • Like Like x 1
  8. ScarabMike

    ScarabMike Jetboaters Commander Scarab Forum Lead

    Messages:
    1,801
    Location:
    Fleming Island, FL
    Ratings:
    +1,516 / 12
    Boat Make:
    Scarab
    Year:
    2014
    Boat Model:
    HO Impulse
    Boat Length:
    19
    The dead man switch should be the first thing you check!! LOL. Have fun out there Alan!

     
    • Funny Funny x 1
  9. R502

    R502 New Member

    Messages:
    27
    Ratings:
    +16 / 0
    Boat Make:
    Scarab
    Year:
    2015
    Boat Model:
    HO Impulse
    Boat Length:
    16
    The closest wiring diagram I can find (without paying for it) for a 2015 165 HOI is for a 2105 Spark. It shows a relay that closes a circuit to the starter solenoid, the coil ground being switched by the ECU. Is this the relay that failed on you?
    I am always a bit miffed at the fact that Scarab has not released a vehicle specific diagram, at least the one I own.
     
  10. Elio195HOI

    Elio195HOI Well-Known Member

    Messages:
    93
    Location:
    Miramar, Florida
    Ratings:
    +46 / 10
    Boat Make:
    Scarab
    Year:
    2014
    Boat Model:
    HO Impulse
    Boat Length:
    19
    Had this same issue and it took MM several hours and Phone calls to BRP to figure out. Thanks for the part numbers.
     
    • Like Like x 1
  11. Briwhy

    Briwhy Well-Known Member

    Messages:
    139
    Location:
    Saxonburg PA
    Ratings:
    +84 / 0
    Boat Make:
    Glastron
    Year:
    2015
    Boat Model:
    GTS
    Boat Length:
    21
    Thanks I ordered 4. Being broke down on the water isn't fun.
     
    • Winner Winner x 1
  12. ALAN MANN SR.

    ALAN MANN SR. Well-Known Member

    Messages:
    48
    Location:
    Wimauma, Florida
    Ratings:
    +26 / 0
    Boat Make:
    Scarab
    Year:
    2015
    Boat Model:
    HO Impulse
    Boat Length:
    16
    I own a 2015 165 HO and the two relays I think Mike is talking about is marked Power Shutdown and 12V accessory's. The one that he is talking about is, I am guessing is the Power Shutdown which is activated by the kill switch excuse me ( Dead Man Switch ) Which I replaced to keep from having trouble with it. And yes it is a shame that you can't get a wire diagram for a Scarab Boat. Just have to go with Sea-doo for parts brake down.
     
    • Agree Agree x 1

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