Raptor Extended Crank

[rdlangston13]

So on our 2017 Mojo if we are running on battery one, then shut the boat off, swap to battery two, and turn it back on it it will crank for like 10 seconds before firing. Not a slow crank or anything, normal cranking speed. The same is true when we go the other direction from battery two to battery one. I have a friend with a Malibu 25 wakesetter with the raptor 450 and his boat does the same thing. Has anyone else noticed this or are our boats jacked up? Should I look at getting something fixed?

[RC_Hinojosa]

I never had that occur when switching between batteries but my batteries are identical. You've introduced a variable since one of your banks is golf cart batteries right? Is the trickle charger plugged in while boat is in storage?

[rdlangston13]

I never had that occur when switching between batteries but my batteries are identical. You've introduced a variable since one of your banks is golf cart batteries right? Is the trickle charger plugged in while boat is in storage?

It was last year but I don't think I am going to leave it plugged in all the time. Its not a slow crank like the batteries have low voltage. It cranks at a normal speed but just doesnt fire up for a few seconds. The different types of batteries would have my attention more if my buddys wakesetter didn't do the same thing with two banks of the same batteries.

[RC_Hinojosa]

Maybe you could talk to Rinker's and see if they can remotely diagnose before making you drag it in...

[zabooda]

Don't use golf cart batteries for starting unless the primary battery is dead. They like a slow discharge and a slow charge so charging from the alternator can be questionable if the batteries have discharged enough. After running golf cart batteries for over twenty years I learned all about the costs of discharging them too much.

[rdlangston13]

Don't use golf cart batteries for starting unless the primary battery is dead. They like a slow discharge and a slow charge so charging from the alternator can be questionable if the batteries have discharged enough. After running golf cart batteries for over twenty years I learned all about the costs of discharging them too much.

So only use the golfcarts for party coving. Got it. I've been using them for everything and keeping the starting battery as a reserve in the event I drain them too much.

[MLA]

So only use the golfcarts for party coving. Got it. I've been using them for everything and keeping the starting battery as a reserve in the event I drain them too much.

For a backup start, i have no issue with using the GC bank, but for regular use, DI start/run on the cranking battery, then move switch to the GC bank for anchoring. When ready to run again, start on cranking but move over to BOTH to put some juice back in the GC bank.

Or, swap the 1/2/BOTH switch for the OFF/ON/COMBINE DCP switch and ACR and then dedicate the golf carts for the house and cranking for engine.

[parrothd]

Your clearing the computer/ecu when switching, probably takes a few cranks for the computer to get signal from all the sensors and fuel pump.

[MLA]

^^^ this would no different then turning the main switch to OFF for storage, then back on to 1 or 2 next trip out, At that point, he'd experience the same extended crank and it would seem normal.

[MLA]

^^^ this would no different then turning the main switch to OFF for storage, then back on to 1 or 2 next trip out, At that point, he'd experience the same extended crank and it would seem normal.