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Rotax owners keep this handy

FlyNavy76

Well-Known Member
Messages
67
Ratings
45
Points
53
Location
Kaneohe Bay Sandbar; Oahu, HI
Boat Make
Scarab
Year
2016
Boat Model
HO Impulse
Boat Length
25
#41
Ive been trying to get this problem worked out in my head. I think you may have a loose connection behind the breaker panel. There is a box that covers the connections. Check the ground connection first, then make sure the other bolts holding the power cables are tight as well.

Im with @JetTech72 with a faulty breaker, or something isolated to that junction point.
Thank you. Plan to go play with it this weekend and will let you know. I appreciate the thoughts on this.
 

JetTech72

Jet Boat Addict
Messages
199
Ratings
106
Points
93
Boat Make
SeaDoo
Year
2012
Boat Model
Challenger
Boat Length
23
#42
Looks like you have no power going to STBD ECU, not cranking , no displayed hours.
Here is what I'll be looking
1- Main Supply ECU power from Breaker in panel (stern-PORT side). That power would feed through Pin#1 in big grey connector to 30A fuse
2- 30A fuse in fuse box (the power to that fuse is coming from previous breaker)
3- ECU Relay located in fuse box. Change relay between PORT & STBD
4- Ignition switch connection not providing light up power to ECU (power going through Pin#2 to main connector)

I have attached some schematics that @ScarabMike posted a year or so ago. There should also be a link to a shop manual somewhere.
 

Attachments

FlyNavy76

Well-Known Member
Messages
67
Ratings
45
Points
53
Location
Kaneohe Bay Sandbar; Oahu, HI
Boat Make
Scarab
Year
2016
Boat Model
HO Impulse
Boat Length
25
#45
I appreciate all the help on this. I brought my boat home to only find that everything works just fine today. I'm a little frustrated to not find something that caused the issue last weekend; but, she seems to be fine now. I opened up the breaker panel, looked around the fuse box, and the ignition switch to see if I could find any loose or corroded connections; but, didn't find anything that looked abnormal. I'm hoping that shutting off the batteries for an extended time self corrected the issue and hopefully this doesn't rear it's ugly head agian...

Thanks again!
 

PapaBear

Jet Boat Lover
Messages
169
Ratings
80 17
Points
78
Location
Daytona Beach
Boat Make
Scarab
Year
2015
Boat Model
HO Impulse
Boat Length
19
#46
I went to the link and it looks like they are no longer offered... Anyone know where else we can get these parts now.
 

PapaBear

Jet Boat Lover
Messages
169
Ratings
80 17
Points
78
Location
Daytona Beach
Boat Make
Scarab
Year
2015
Boat Model
HO Impulse
Boat Length
19
#49
I wanted to make sure I got the correct oil filter from partzilla. The oil filter that came didn't come with any other parts... Just the filter. Just making sure I got the correct one. Also I have seen two types of oil guys are using... First time changing my own oil. MM wants 454$ for an oil change. I will find the link for the oil filter stby.
 

PapaBear

Jet Boat Lover
Messages
169
Ratings
80 17
Points
78
Location
Daytona Beach
Boat Make
Scarab
Year
2015
Boat Model
HO Impulse
Boat Length
19
#50
Oh I see this thread is about the starter relays... Ya I bought two of those. I found them on Amazon.
 

JetTech72

Jet Boat Addict
Messages
199
Ratings
106
Points
93
Boat Make
SeaDoo
Year
2012
Boat Model
Challenger
Boat Length
23
#51
Oil Filter
The best filter is 420956744, but filter 420956741 would work also.
Looks them up on Amazon. I recommend buying the kit with O-rings.

As far as oil, I think @ScarabMike did a thesis on it on a thread somewhere. He was recommending one of the Shell Rotella if I remember correctly.
You won't go wrong using BRP - Rotax 293600122, just don't use super synthetic oil that are not compatible with wet clutch system.
Also be very careful not to overfil it, that's very easy with a dry-sump system. The procedure is in the Service Manual, I attached the specific section.
 

Attachments

JetTech72

Jet Boat Addict
Messages
199
Ratings
106
Points
93
Boat Make
SeaDoo
Year
2012
Boat Model
Challenger
Boat Length
23
#53
For the Relay, search on Amazon
Song Chuan : 301-1C-C-R1-U01-12VDC
Omron : G8V-RH-1C7T-R-DC12
Or you can go at Autozone & get a Duralast # 19271, but you will pay more for the same thing
 

TCASMER

New Member
Messages
3
Ratings
1
Points
1
Boat Make
Scarab
Year
2018
Boat Model
Other
Boat Length
16
#54
For the Relay, search on Amazon
Song Chuan : 301-1C-C-R1-U01-12VDC
Omron : G8V-RH-1C7T-R-DC12
Or you can go at Autozone & get a Duralast # 19271, but you will pay more for the same thing
Thank you for the information. That is a big help.
TCASMER
 
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