best bet tony is to take a breather and walk away...try it again tomorrow...when you start getting mad thats when you stop...this has always worked for me 

see you guys on friday! well probably sat cause i'll be too plastered to remember friday by then probably

why not. wouldnt that charge both batteries?

for some reason my alternator wire is the majic wire. the boat wont start with this wire disconnected. itwont eventurn over. is there a bbc wiring diagram on here anywhere.i have to check soem stuff out tomorrow

Just dont run it with the Perko Switch on "Both"

actually you can if it is properly wired...i know your trying to be funny, but sometimes things are a little serious, and tony is trying to make it to temple bar soooooooo........

here ya go tony for what it is worth!
http://www.socaljetboats.com/engine-mechanical-electrical/jet-boat-engine-harness-diagrams/

gotta do some figuring on some of the other wiring...might have something to do with the solenoid as well, but who knows everyone's wiring is a little different....maybe you can go further into detail so we can try to help you out tony....

theres 2 series that the battery can be wired....believe one to be series, and the other one not sure, but if properly wired you should maintain normal voltage, and not double the voltage...tony honestly i think it can be done...otherwise there wouldnt be an all option on the switch, but if i am wrong then you might half to switch between 1 and 2

theres 2 series that the battery can be wired....believe one to be series, and the other one not sure, but if properly wired you should maintain normal voltage, and not double the voltage...tony honestly i think it can be done...otherwise there wouldnt be an all option on the switch, but if i am wrong then you might half to switch between 1 and 2

The answer I got from Perko was that you should only use the "Both" position in an emergency and your batteries are both low and your trying to just get the started. They said never run it on that setting if everything is working properly, that you WILL fry your electronics by giving them to much voltage.

It may be right, it may be wrong. Just figured if its the manufactuer telling a customer not to use their product a certain way, probably a good idea to not do it.

I would go back to basics and keep it simple. Wire everything like it should be for a BBC and then wire in the switch like it shows.

your accesories going to your starter is your issue.

ya i am going to do that tomorrow. i dont understand what the selector switch does then. just isolates the batteris from the starter?

so if i turn the switch to off all my accessories will still have power and slowly drain my batts while the boat is stored

If wired correctly and ALL the accesories are wired to a switch (ignition key) and not to a constant 12v source (direct to the battery) then the accesories should all be off when the key is off. Even with a battery switch in the off position the batteries will lose their charge over time.

If you have the 12v constant on the radio hooked up to power the clock and the memory then you will always have a dead battery.


The switch is just going to issolate one battery at a time. Either running off of one or the other and charging one or the other. If your stopped and you run one down using the radio you always know you have 1 good battery to start back up on.

i will get to the bottom of this. i got a good wiring diagram now and i will fix this crap tomorrow. if not i am buying a deck boat on the way to vegas and we will give the alky a viking funeral. lol

If the negative terminal on all of the batteries runs to the same ground then there is no way you can get 24 volts from the batteries.  The Batteries would need to be wired in series neg to ground, positive to neg on the second batter and positive to to buss to get 24 volts.  Make sure your alternator is grounded properly as well.  With the switch to both you are using the amperage from both batteries and only 12 volts if the batteries are wired with the negative terminals all grounding.  What specific problem are you having? 

Ok just reread to find the problem.  I'm not sure where your battery switch is in the circuit.  With one battery the wire should go from the battery to the solenoid, from the solenoid to the alternator and to the power buss.  (there are variations on this but the main power should go to the solenoid, power buss, and from the alternator to one of these points)  From the power buss to the ignition switch and from the switch to the coil (x2 Start wire and run wire), and to the solenoid to engage the starter when in the start position.  From the solenoid to the starter. (sometimes the coil start wire comes from the solenoid instead)  Run position on the switch either powers all the gauges ect. or gives power to a relay that provides that power. 

It sounds like either your switch doesn't send power to a single distribution point for the alt, solenoid and battery positive buss, OR you don't have the block grounded properly to the negative terminals of the batteries and is grounding back through when you hook it up.  Ground should be both battery negatives to the block, and the negative power buss to the block or negative terminal of one battery.  The grounds sharing a common terminal ties all the grounds together so don't worry about switch position. 

If wired like it should be and you place it on Both you are putting out 24v to everything. That is what I was told by Perko when I was trying to figure out a very incorrectly wired switch

I think I remember that switch.........

Ray

Is it possibly the knob on the switch is installed wrong? Pointing the wrong way? I'd check, but no Scuba gear and it's dark.....

i am the god of all that floats. i got the battery situation figured out got  the switch working got the boat vacuumed and found out i have a blown speaker.

just some quick finishing touches tomorrow and we will roll the dice to see if my trialer will make the trip. lol.. and i am not sure if i have a drain plug or  not.

i am the god of all that floats. i got the battery situation figured out got  the switch working got the boat vacuumed and found out i have a blown speaker.

just some quick finishing touches tomorrow and we will roll the dice to see if my trialer will make the trip. lol.. and i am not sure if i have a drain plug or  not.

yeah i didnt get everything done myself either, but i got the truck somewhat clean got the boat all waxed and started to polish chrome and alum...still gotta wipe down the seats, and vacuum....a couple of things to handle inside the house and i am off to bullhead to visit 2 sav...i'll be rolling in probably around 4 ish!!!! im hoping....i still got a ton to do, but i started work at 6am and just now sat down!