How To Understand a Wiring Diagram

[@daveheather8654]

Tim wired my fj1200 chop from scratch. It’s one of the best wiring jobs I’ve seen! Thanks again Tim👍

[@sebbrown1225]

Brilliant job. Really helps to explain the one bit of bike mechanics everyone hates! Will watch again a couple of times but I understand better already. Thanks blackjack

[@BuiltatBlackjacks]

It might not be dead easy, but it is easier than people think. :-)

[@naturalstatenversion3484]

Amazing job just laying down the info thank you

[@BuiltatBlackjacks]

Glad you liked it.

[@Bill97070]

thanks, it's very helpful to understand wiring and how it is broken down into circuits.

[@BuiltatBlackjacks]

It does make it easier to understand.

[@miami410]

Thank you. Thank you so God, d*** much. You have no idea how long I've been looking for a man like you with a video like this.

[@BuiltatBlackjacks]

You're welcome.

[@BrunoVesterMadsen]

Best explain ever! Tanks mate.

[@BuiltatBlackjacks]

Glad you liked it!

[@miami410]

I've recently lost everything in my life.And all I have is this old Kawasaki.And motivation to get to work and I am rewiring it from scratch and having one hell of a time, I can't get any assistance and all I have.Is this KZbin video Wish me luck.

[@BuiltatBlackjacks]

Wiring is a bit of a dark art, it's not difficult as such it's just a bit of a dark art. Let me know how you get on?

[@denmalo23]

very clear explanation, thanks a lot

[@BuiltatBlackjacks]

You're welcome.

[@bennygregory2629]

I got a black wire that come of the starter when key is turned on it is hot do i need to run it to the copper side of me 30 amp breaker thats were i have my rectifier going to anything info would help

[@BuiltatBlackjacks]

Whats this on?

[@bennygregory2629]

@@BuiltatBlackjacks 1995 1200xl sportster

[@BuiltatBlackjacks]

The 30 amp breaker has the output from the regulator (red) and a wire to the ignition switch (also red) on one side, the black wire from the starter goes to the other terminal according to the diagrams I've looked at. You said the black wire from the starter is hot with the ignition on? Should be hot all the time since it's what actually sends power to the ignition switch???

[@bennygregory2629]

@@BuiltatBlackjacks ty for the help

[@johnjamieson4901]

That's great. Consider doing one about half wave 4 pin reg/recs? That's the one bit different on some pit bikes, and bikes with Chinese pit engines (lifan/cub). There's not 3 yellow wires coming from an alternator, but one yellow and one white to get your 12v from. I THINK I've got it sussed now, but if I had a how to vid like that, it would have made things a lot easier.

[@BuiltatBlackjacks]

There are a few differences, and even here this video skips lightly over the ignition system. The combinations of what you might have are vast, did you know the early CX500 has the same sort of self powered ignition set up as pit bikes etc?

[@paulstanier9736]

Smashing explanation, a lot easier to follow when you divide it up like that, am I right in thinking that with that simplified wiring the lights would be permanently on?

[@BuiltatBlackjacks]

No, they'd go on and off with the light switch.

[@touchpointpropertymanageme2889]

On my reg/rec, besides the wires that go to my stator, there are 3 wires coming off it which I assume one is for ground and other goes to starter solenoid.... But I don't know what the 3rd one is for. Can you explain what that's for?

[@BuiltatBlackjacks]

Depends on the bike. If it's got a field effect alternator (XS650, CB750 SOHC to name a few) then there'll be a feed from the Reg/Rec to the field windings probably the "stray" wire and the ground. If it's a permanent magnet alternator, the "stray" wire is most likely a load sensor in which case it connects to a switched live and senses the voltage being supplied and "tells" the Reg/Rec how much regulating it has to do. It's hard to be concise because stuff varies, and aftermarket Reg/Recs don't always work like the factory version.

[@adamandeve2006]

Thank you so much mate 👍

[@BuiltatBlackjacks]

Happy to help

[@paddy5141]

Would you help; I have Kawasaki kz750 twin building from scratch (bobber) my regular have 2 yellow wires one black one white and red and brown … Yellows need to connect to stator, Black is negative - White/red it positive + And brown I have not a clue… on diagram looks like is connected to brake light switch 🤷🏻‍♂️. Would you help please?

[@BuiltatBlackjacks]

Hi, yeah I'd say it was the load sensor? Brake light has a brown wire and a blue wire? Brown is a switched live, the brown to the regulator is there so the regulator can "see" how many volts there are in the wiring and adjust it's output to suit.

[@paddy5141]

@@BuiltatBlackjacks Thanks a mill for replying me 🙏🏻.

[@BuiltatBlackjacks]

@@paddy5141sorry it took that long. I need to sort the notifications out.

[@paddy5141]

@@BuiltatBlackjacks no bother thanks 👍🏻

[@paddy5141]

@@BuiltatBlackjacks Hi it’s me again…🤦🏻‍♂️, is it matter where i connect brown one? Hast to be brake switch or if I connect to any positive which I have in a fuse box….what do you think 💭? Also my stator has just 2 yellow cables is it matter how I connect them with regular (I’ve no original connector just wires 🫣)Thanks a mill again 🙏🏻.

[@raymondgarafano8604]

May I suggest putting a fuse between RR and Battery? I just had an experience when the RR's hot wire to battery shorted inside the RR and ran the battery down very quickly. Thusly I am going to put an inline fuse between the RR and harness up to the battery as the circuit breaker possibly being 31 yrs old never opened up as it should have.

[@BuiltatBlackjacks]

There are very few manufacturers that put a fuse between the RR and the battery. On one hand it is something that I think about from time to time. But on the other hand since your short didn't reduce thing to a smoking ruin (?) I don't thing a fuse would have helped. if it was a fuse with a low enough rating to blow when the short wasn't bad enough to damage the wiring it would blow when the RR was working and the bike was charging. If it has a high enough rating to survive charging then it's not likely to prevent the battery discharging if it's not discharging fast enough to damage the wiring. I think it's going to cause you trouble more often than it saves you trouble?

[@raymondgarafano8604]

@@BuiltatBlackjacks I do thank you for your time, The connector between the RR and Stator was possibly likely to burn the stator out due to the connector actually melting and causing wires from stator to touch each other. Most of the time when an RR goes bad it either overcharges the battery or does not charge it. This may have been a freak event? Battery shorting to ground through the rect/reg? As said, a circuit breaker was between the Bat and RR it just never opened up, which would then cool it, then make again. Perhaps I should put in a circuit breaker instead?

[@johnwilde5518]

Hi pal I would like to make my own wiring loom, I’ve drawn all the components could you be so kind as to connect as you see it please, if so how can I send my drawing please. Kind Regards Johnny Wilde

[@BuiltatBlackjacks]

Hi Johnny. Just stick "@gmail.com" on the end of the channel name.

[@BuiltatBlackjacks]

Or click on the link for business enquiries on the "About" page under "Details"

[@jockwilson221]

just did this for ignition on z650 very easy to copy

[@BuiltatBlackjacks]

Glad to be of assistance.

[@jameseric9858]

The starter won't stop cranking by beader stardid smoking I took the ground wire off to stop it

[@BuiltatBlackjacks]

How many wires are on the solenoid? There are a few oddball ones that are wired up in a strange fashion.

[@dannyweston1]

So what does the white wire on the reg/rec do?

[@BuiltatBlackjacks]

Depends Danny, the colours I used here are all pretty generic, but the Yellow ones from the alternator are sometimes white but there will be either two or three identical looking ones? Some alternators don't have permanent magnets but use electro-magnets instead (called field effect alternators, common on cars) and sometimes the White wire is the feed for the electro-magnets. Other times it can be 12Volt DC + out. If you say what bike it is, I might be able to be a bit clearer?

[@touchpointpropertymanageme2889]

Great video thank you

[@BuiltatBlackjacks]

Glad you enjoyed it

[@clidskingtv.5459]

Nice one Idol thanks for tutorial

[@BuiltatBlackjacks]

No problem 😊

[@karinanefjodova6398]

Fantastic thank you !

[@BuiltatBlackjacks]

You're welcome.

[@poljames7492]

Hey up blackjack,,thats made things look easier, the one job i hate

[@BuiltatBlackjacks]

Glad it helped, that's what I'm here for. :-)

[@mikesheldon3105]

Got it,super job.i was stressed when started rewiring my 80xlh one by one ,no problem hum,well then on up the line's.was a wad of a few couple of snips here and there I'll remember ha plus the wires from the handle bar switches that don't work but will thanks to you I've now got the conference in myself to even put in a new fuse panel.make it all nice and neat.thanks o"l buddy✌

[@daveyjennyville]

interesting

[@BuiltatBlackjacks]

Thanks. :-)

[@matthewphillips4270]

Cool?!?!

[@BuiltatBlackjacks]

Thanks.

[@bantampop3532]

AAA+++