1967 CB450K0 Black Bomber Rebuild - By Royhall

[AshimotoK0]

Hi Mo .. great that the needles are OK.

Iam thinking along the lines that magnets in the rotor may be slightly weak so I would connect the yellow and white wires permanently. However, dig out one of those Kawasaki voltage regulators out and I will tell you how to connect it. This will mean that if you did generate excess charge then the regulator would 'current dump' it to ground and wouldn't overcharge your battery. How does it read if you have the dipped beam on too? Worth checking

[mo goldie]

are Ok Ash

well I have found one up so have a look at the pictures and see what you think to wire that in to stop overcharging of the Battery....... as for the lights on have not done that yet so one more thing to look at.

anyway I gave the Regulator a clean up and put it on the meter if that means anything to you ( but Not me LOL )
so hope that will work, it has two wires coming out one Black and one yellow/white.

Cheers

Mo

[AshimotoK0]

The Honda regulator is a 3-wire unit Mo. I will have to look up that one you have

[mo goldie]

Are ok...... well I Think the other one when i find it has 4 wires ........

and is a lot bigger one........... so if I can use this one Ash would be good, so I asum it go`s somewhere between the rectifier and the Battery ?.

[AshimotoK0]

Are ok...... well I Think the other one when i find it has 4 wires ........

and is a lot bigger one........... so if I can use this one Ash would be good, so I asum it go`s somewhere between the rectifier and the Battery ?.

Leave it with me to investigate Mo. You also need to check your charge current with the lights on dipped beam.

[AshimotoK0]

Bl**dy hell I am now genning up on Kwak KH400 electrics ! Forgive me as I have sinned 

Must admit the Shop Manual looks pretty good though.

https://kawatriple.net/wp-content/uploads/2021/04/Workshop-Manual-S-KH-Series-1.pdf

So here you go Mo. On Kwak voltage regulator ... Black wire to Ground and Yellow/Green wire to Yellow on your wiring.

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[mo goldie]

Hi Ash

Well thanks for that and the Manual I have got one but got a spare Now.... going over to Kawasaki LOL

so here is what I have done this morning with the bike lights on and off Not to sure now as with the lights on the voltage drop a lot but I will let you tell me what you think, it starts off with the lights off and rev at 2,000 rev`s about 13.40 to 13.45 then lights on and drop right away to about 12.7 then go`s down from there to about 12.46 all at 2,000 rev`s don`t know if that is good enough or Not.

Cheers Mo
 

[AshimotoK0]

Hi Ash

Well thanks for that and the Manual I have got one but got a spare Now.... going over to Kawasaki LOL

so here is what I have done this morning with the bike lights on and off Not to sure now as with the lights on the voltage drop a lot but I will ley you tell me what you think, it starts off with the lights off and rev at 2,000 rev`s about 13.40 to 13.45 then lights on and drop right away to about 12.7 then go`s down from there to about 12.46 all at 2,000 rev`s don`t know if that is good enough or Not.

Cheers Mo

Doesn't sound too bad .. can you do the same tests with meter set to 10A and in series with battery (as you did previously) please Mo and give us some current readings.

[mo goldie]

Well Ash

I hope this make some sense to you as don`t to me 

Just connected up in line with the batt and this is what the meter say.

[AshimotoK0]

Mo .. you should only have the black probe going to the battery  .. that red lead from the rectifier needs to connect to the other red leads

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[mo goldie]

the red lead is the one from the rectifier to the battery which is being held on by the black probe, and the other black from the Rectifier is to the - side of the battery the starter wire as we said is Not connected as use kickstart only.....

i wish I Know more Ash about Electrics   

oh don`t forget I have the wires from the stator going to the Rectifier so Not going thought the loom.. the black rectifier wire is the yellow from stator which is the white ( lights Extra ) ...and the brown/yellow is the yellow from the stator both connected to rectifier.........

Confusing .com I Know lol 

[AshimotoK0]

the red lead is the one from the rectifier to the battery which is being held on by the black probe, and the other black from the Rectifier is to the - side of the battery the starter wire as we said is Not connected as use kickstart only.....

i wish I Know more Ash about Electrics   

oh don`t forget I have the wires from the stator going to the Rectifier so Not going thought the loom

You definitely need to connect the red lead from the rectifier to the red probe from the meter and only have the black lead connected to the battery. Idea is to measure current in to or out of battery.

[mo goldie]

are ok


I will go have a go at that then Ash Thanks.....will get back

Thanks for this 

[mo goldie]

are there you go Ash

is That any better ....... that was lights on and 2,000 rev`s.

Oh that wire you pointed at I will go look see if I can find out where it go`s.

[mo goldie]

I have just done that search of the wire and its is just a loop which go`s from the battery the one you pointed at to that sort of red Felt pen colored wire coming out of that right side plug which must be the feed out from the rectifier to charge the battery into that.

oh thats my KH400 Ashley back in 2008 in Classic motorcycle Mag